Startups · looking for a co-founder
Every startup. One search.
522 startups looking for a co-founder, newest first. Filter by region, country, role, industry, stage, commitment, terms and work mode; each startup has its own page with the details.
522 startups
| ID | Startup and place | Industry · stage | Commitment · terms | Work mode | Posted | Freshness |
|---|---|---|---|---|---|---|
| SU-0240 | Solo consumer mobile app business seeking a co-founder strong in UGC and distributionMarketing & growth · Location not stated | Consumer & social | — | — | Oct 2026 | New |
| SU-0236 | Aspiring founder in Bavaria seeks a finance-minded co-founder; business direction still openFinance / CFO, CEO & business · Rosenheim, Germany | Idea | — | — | Oct 2026 | New |
| SU-0233 | Buying real businesses, starting with wealth management, and transforming them with AIFinance / CFO, CEO & business · Location not stated | Fintech, AI · Idea | — | — | Oct 2026 | New |
| SU-0232 | Founder of a planned health app seeks a technical co-founder in Munich for iOS and AndroidTechnical co-founder / CTO, Mobile & apps · München, Germany | Health, Consumer & social · Prototype | Equity only | — | Oct 2026 | New |
| SU-0230 | Digital content creator agency seeks a part-time co-founder with sales experience, remoteSales & partnerships · Leipzig, Germany | Media & creators · Idea | Part-time | Remote | Oct 2026 | New |
| SU-0227 | Soybean crop-stress scoring from satellite and weather data seeks a remote-sensing co-founder and a business co-founderData & infrastructure, CEO & business · Location not stated | AI, Climate & energy · Idea | — | — | Oct 2026 | New |
| SU-0366 | Post asking for a technical co-founder; the project is described only on a linked pageTechnical co-founder / CTO · Location not stated | — | — | — | Oct 2026 | New |
| SU-0224 | AI-powered mobile app with a working MVP seeks a technical co-founder or lead developerTechnical co-founder / CTO, Mobile & apps · Location not stated | AI, Consumer & social · Live product or beta | — | — | Oct 2026 | New |
| SU-0223 | Interdisciplinary team founding a social-impact and networking startup seeks a co-founderOpen role · Aschaffenburg, Germany | Social impact · Idea | — | — | Oct 2026 | New |
| SU-0221 | EXIST founding team for a smart-textile wearable seeks a third co-founder for product developmentHardware & robotics, Design & UX · Reutlingen, Germany | Hardware, robotics & IoT, Consumer & social · Idea | Equity only | — | Oct 2026 | New |
| SU-0220 | Virtual-clinic platform ('Shopify for clinicians') seeks a technical co-founder to apply to YCTechnical co-founder / CTO · Location not stated | Health, SaaS & B2B software · Idea | — | — | Oct 2026 | New |
| SU-0219 | Early AI implementation business seeks a technical AI partner to own automation architectureTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, SaaS & B2B software · Idea | — | — | Oct 2026 | New |
| SU-0477 | AI that predicts clinical trial outcomes and its confidence seeks a hands-on technical co-founder and CTOTechnical co-founder / CTO, AI & machine learning · London, United Kingdom | Biotech & life sciences, AI, Health · Live product or beta | Full-time | — | Oct 2026 | New |
| SU-0218 | Mobile wellbeing app backed by an investment company seeks a Co-founder and CEO on up to 25% equityCEO & business · Location not stated | Health, Consumer & social · Live product or beta | Equity only | Remote | Oct 2026 | New |
| SU-0417 | AI training and evaluation project with working technology seeks a trustworthy co-founderOpen role · Japan | AI · Prototype | — | — | Oct 2026 | New |
| SU-0476 | Team seeks an experienced commercial co-founder strong in sales and go-to-marketCEO & business, Sales & partnerships · Location not stated | — | — | Remote | Oct 2026 | New |
| SU-0216 | AI-agent startup for banking and finance seeks a technical co-founder, remoteTechnical co-founder / CTO, AI & machine learning · Oldenburg, Germany | AI, Fintech · Idea | — | Remote | Oct 2026 | New |
| SU-0215 | PropTech tenant app with automated consumption tracking seeks co-creators for build and UXTechnical co-founder / CTO, Mobile & apps, Design & UX · Hamburg, Germany | Real estate & construction, Consumer & social · Idea | — | — | Oct 2026 | New |
| SU-0214 | Building-components and sun-protection venture selling online seeks a long-term co-founder or business partnerSales & partnerships, Marketing & growth, Operations / COO · Denkendorf, Germany | Commerce & retail, Marketplaces · Paying customers | Equity only | — | Sep 2026 | New |
| SU-0213 | Pre-launch affinity-based social network built as a 3D node graph, seeking a CTO co-founderTechnical co-founder / CTO · Location not stated | Consumer & social · Prototype | Equity only | — | Sep 2026 | New |
| SU-0212 | Free browser-based passenger flight simulator seeks a technical co-founder to build a sustainable businessTechnical co-founder / CTO · Location not stated | Gaming, Consumer & social · Live product or beta | Equity only | Remote | Sep 2026 | New |
| SU-0211 | Business-administration student with e-commerce resale experience seeks a co-founder for a new businessTechnical co-founder / CTO, Sales & partnerships, Marketing & growth · Freiburg im Breisgau, Germany | Commerce & retail · Idea | — | — | Sep 2026 | New |
| SU-0210 | Founder of an 'anti AI slop' startup seeks a go-to-market co-founderMarketing & growth, Sales & partnerships · Location not stated | AI | — | — | Sep 2026 | New |
| SU-0209 | Founder of an autonomous multi-agent AI project in Gironde seeks a technical co-founder / AI tech leadTechnical co-founder / CTO, AI & machine learning · Cubzac-les-Ponts, France | AI · Idea | — | — | Sep 2026 | New |
| SU-0365 | Privacy-focused, provider-agnostic AI email assistant on MCP; solo founder offers 50/50 equity to a co-founderOpen role · London, United Kingdom | AI, SaaS & B2B software · Live product or beta | Equity only | — | Sep 2026 | New |
| SU-0364 | Managed cloud for running coding agents (Claude Code, Codex) via API; founder seeks a cofounder in SF or NYOpen role · San Francisco or New York, United States | Developer tools, AI · Live product or beta | — | — | Sep 2026 | New |
| SU-0208 | Regional business-data platform with finished tech base seeks a sales-focused co-founderSales & partnerships, Marketing & growth · Wismar, Germany | SaaS & B2B software, Legal & public sector · Live product or beta | — | — | Sep 2026 | New |
| SU-0207 | Berlin founder with no fixed idea seeks 2-3 co-founders (design, development, marketing, business)Design & UX, Technical co-founder / CTO, Marketing & growth · Berlin, Germany | Idea | — | Hybrid | Sep 2026 | New |
| SU-0206 | Service for capturing and sharing 3D spatial data (ARKit/LiDAR); solo engineer seeks a business-savvy co-founderCEO & business, Finance / CFO · Location not stated | SaaS & B2B software, Media & creators · Live product or beta | — | — | Sep 2026 | New |
| SU-0205 | Solo iOS app developer seeks a marketing and UGC co-founder, US-based, 15-20 hours a weekMarketing & growth · United States | Consumer & social · Paying customers | Part-time | — | Sep 2026 | New |
| SU-0203 | Founder planning a senior companion and support service in Hannover seeks a co-founderIndustry expert, Operations / COO · Hannover, Germany | Health, Social impact · Idea | — | On site | Sep 2026 | New |
| SU-0202 | Founder building an autonomous AI sales-setter and CRM seeks a business partnerSales & partnerships, Marketing & growth, AI & machine learning · Leipzig, Germany | AI, SaaS & B2B software, Education · Prototype | — | — | Sep 2026 | New |
| SU-0201 | AI software-engineering agent platform seeks a long-term content partner for 5-10% equityContent & community · Location not stated | AI, Developer tools · Prototype | Equity and salary | — | Sep 2026 | New |
| SU-0199 | Brand-new hospitality startup in Hannover seeks a sales co-founder with offline sales talentSales & partnerships · Hannover, Germany | Food & agriculture · Idea | — | — | Sep 2026 | New |
| SU-0474 | AI agents automating work for outpatient healthcare practices seek a hands-on technical cofounderTechnical co-founder / CTO, AI & machine learning · California, United States | Health, AI | Equity and salary | — | Sep 2026 | New |
| SU-0473 | AI-native marketplace for small business acquisitions seeks a founding President/COO as true cofounderOperations / COO, Finance / CFO · United States | Marketplaces, Fintech, AI · Prototype | — | Remote | Sep 2026 | Recent |
| SU-0472 | AI agent security and governance platform seeks a co-founder and CEO to take its MVP to marketCEO & business, Sales & partnerships · Location not stated | Cybersecurity, AI · Live product or beta | — | Remote | Sep 2026 | Recent |
| SU-0198 | AI product builder seeks technically strong co-founders for local LLM, RAG and agent products on a profit-share basisAI & machine learning, Technical co-founder / CTO · Sinzheim, Germany | AI · Idea | Equity only | Remote | Aug 2026 | Recent |
| SU-0197 | B2B SaaS startup with concept and prototype seeks a full-stack technical co-founderTechnical co-founder / CTO · Erkelenz, Germany | SaaS & B2B software · Prototype | — | — | Aug 2026 | Recent |
| SU-0196 | School-management SaaS for national education systems, starting with Angola, seeks a Bubble technical partnerTechnical co-founder / CTO · Location not stated | Education, SaaS & B2B software · Prototype | — | — | Aug 2026 | Recent |
| SU-0363 | Piston-less V8 engine architecture concept seeks a co-founderOpen role · Location not stated | Mobility & logistics, Deep tech · Idea | — | — | Aug 2026 | Recent |
| SU-0195 | AI-assisted warehouse error-proofing platform for small auto-parts warehouses seeks full-stack technical partnerTechnical co-founder / CTO · Changsha, China | SaaS & B2B software, AI, Commerce & retail · Idea | Equity only | Remote | Aug 2026 | Recent |
| SU-0194 | Founder seeks a co-founder with IT and AI knowledge to set up a 50:50 UGTechnical co-founder / CTO, AI & machine learning · Berlin, Germany | AI · Idea | Equity only | — | Aug 2026 | Recent |
| SU-0193 | Small handmade-products online shop seeks a social media and marketing co-founderMarketing & growth, Content & community · Augsburg, Germany | Commerce & retail, Consumer & social · Idea | Part-time · Equity only | — | Aug 2026 | Recent |
| SU-0192 | Early software and digital-ideas founder seeks a marketing and growth co-founder, part-timeMarketing & growth, Sales & partnerships · Heidenheim an der Brenz, Germany | SaaS & B2B software · Idea | Part-time · Equity only | Hybrid | Aug 2026 | Recent |
| SU-0191 | Company group in formation seeks co-founders to independently run new venturesOperations / COO, CEO & business · Essen, Germany | Idea | — | — | Aug 2026 | Recent |
| SU-0362 | Legal-tech startup looking for a co-founderOpen role · Location not stated | Legal & public sector | — | — | Aug 2026 | Recent |
| SU-0190 | Pre-seed AI creator marketplace for video ads seeks an in-person CTO co-founder in San FranciscoTechnical co-founder / CTO, AI & machine learning · San Francisco, California, United States | Marketplaces, AI, Media & creators | Full-time | On site | Aug 2026 | Recent |
| SU-0361 | Open-source AI agent runtime cutting LLM round trips seeks co-founders for community, sales and fundraisingContent & community, Sales & partnerships, Finance / CFO · France | AI, Developer tools · Prototype | — | — | Aug 2026 | Recent |
| SU-0189 | Startup looking for a marketing-focused co-founderMarketing & growth · Location not stated | — | — | — | Aug 2026 | Recent |
| SU-0188 | EU-native code forge built around the Jujutsu VCS; founder seeks a technical product/engineering-management co-founderProduct, Technical co-founder / CTO · Location not stated | Developer tools | — | — | Aug 2026 | Recent |
| SU-0360 | Show HN post seeking a co-founder, engineer or video editor in San FranciscoOpen role · San Francisco | — | — | — | Aug 2026 | Recent |
| SU-0359 | Geneva-based AI agent for physical commodity-trading operations with a running pilot seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Geneva, Switzerland | AI, SaaS & B2B software, Fintech · Live product or beta | Equity and salary | Remote | Jul 2026 | Recent |
| SU-0467 | AI privacy and data-governance software startup seeks an equity-based technical co-founder in TorontoTechnical co-founder / CTO · Toronto, Ontario, Canada | AI, Cybersecurity, SaaS & B2B software | Equity only | — | Jul 2026 | Recent |
| SU-0186 | Studio venture building an AI inventory-planning autopilot for small retailers seeks a CEO co-founderCEO & business · Seattle, Washington, United States | SaaS & B2B software, Commerce & retail, AI | Full-time · Equity only | — | Jul 2026 | Recent |
| SU-0358 | Operator of a five-year-old local business with a scaling system seeks a co-founderOpen role · Location not stated | — | — | — | Jul 2026 | Recent |
| SU-0357 | Operating enterprise-app platform offers 50/50 equity to a full-time Go technical partnerTechnical co-founder / CTO · Location not stated | SaaS & B2B software · Live product or beta | Full-time · Equity only | Remote | Jun 2026 | Recent |
| SU-0183 | Two-founder startup seeks a third technical co-founder with big-tech or fast-growing startup experienceTechnical co-founder / CTO · Location not stated | — | — | — | Jun 2026 | Recent |
| SU-0182 | Overseas-focused AI character-simulation app seeks a product partner (not just a PM)Product · Guangzhou, China | AI, Consumer & social · Prototype | Full-time | Hybrid | Jun 2026 | Recent |
| SU-0181 | Peer-support platform for hard times with a live early version seeks a full-time technical co-founderTechnical co-founder / CTO · Santa Cruz, California, United States | Consumer & social, Social impact · Live product or beta | Full-time | — | Jun 2026 | Recent |
| SU-0180 | SaaS tool built while fundraising for another venture, founder seeks a go-to-market co-founderMarketing & growth · Location not stated | SaaS & B2B software · Prototype | Flexible | — | Jun 2026 | Recent |
| SU-0179 | Founder of an undisclosed 'controversial' startup needs a co-founder who can codeTechnical co-founder / CTO · Location not stated | — | — | — | Jun 2026 | Recent |
| SU-0178 | Seed-stage ClimateTech building carbon offsetting for small businesses seeks a CTO co-founder on equityTechnical co-founder / CTO · Lyon, France | Climate & energy, SaaS & B2B software | Equity only | — | Jun 2026 | Recent |
| SU-0177 | Early-stage digital mental health platform seeks a US-based mission-driven co-founderCEO & business · United States | Health | Full-time · Equity only | Remote | Jun 2026 | Recent |
| SU-0176 | Pre-revenue software company offers a Founding COO role with a path to co-founder statusOperations / COO, Sales & partnerships · Austin, Texas, United States | SaaS & B2B software, AI, Cybersecurity · Live product or beta | Part-time · Equity only | Remote | Jun 2026 | Recent |
| SU-0175 | Mental-health marketplace linking clients with verified therapists in several markets seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · London, United Kingdom | Health, Marketplaces · Idea | Full-time · Equity and salary | — | Jun 2026 | Recent |
| SU-0173 | Agentic intelligence layer on distribution insights for UK and EU asset managersTechnical co-founder / CTO, AI & machine learning, Data & infrastructure · London, United Kingdom | Fintech, AI · Funded | Full-time | — | May 2026 | Recent |
| SU-0171 | AI infrastructure for India's gig workforce, mobility and EV ecosystems seeks one co-founderCEO & business, Operations / COO · Bengaluru, India | AI, HR & future of work, Mobility & logistics | — | Hybrid | May 2026 | Recent |
| SU-0464 | Pre-seed consumer health company seeks a founding AI and data science lead on a co-founder trackAI & machine learning, Data & infrastructure · Location not stated | Health, Consumer & social, AI · Live product or beta | — | — | May 2026 | Recent |
| SU-0169 | B2B global trade platform seeks a technical co-founder in the USATechnical co-founder / CTO · United States | Marketplaces, Commerce & retail | — | — | May 2026 | Recent |
| SU-0168 | Studio-backed AI-native real-estate platform for Spain seeks a co-founder and CTOTechnical co-founder / CTO, AI & machine learning · Barcelona, Spain | Real estate & construction, AI · Idea | — | — | May 2026 | Recent |
| SU-0167 | Chengdu luxury-travel operator building an AI SaaS operating system for travel agencies seeks technical co-founderTechnical co-founder / CTO · Chengdu, China | SaaS & B2B software, Travel & hospitality, AI · Paying customers | Full-time · Equity and salary | — | May 2026 | Recent |
| SU-0356 | Deterministic natural-language runtime without LLMs, seven years solo, seeks co-founder or small angelOpen role · Location not stated | AI, Developer tools · Prototype | — | — | May 2026 | Recent |
| SU-0166 | Research spinout for light-driven on-site hydrogen peroxide generation seeks a business-lead co-founderCEO & business · Potsdam, Germany | Climate & energy, Deep tech · Prototype | — | — | May 2026 | Recent |
| SU-0165 | Studio-backed venture measuring enterprise AI usage and ROI seeks a co-founder CTOTechnical co-founder / CTO · San Francisco, California, United States | AI, SaaS & B2B software · Prototype | Full-time · Equity only | — | May 2026 | Recent |
| SU-0164 | Cloud CRM with commission calculation and basic accounting for small teams seeks technical co-founderTechnical co-founder / CTO · Location not stated | SaaS & B2B software · Prototype | — | — | May 2026 | Recent |
| SU-0411 | Founder with positive-impact ideas looks for a complementary co-founderOpen role · Munich, Germany | Social impact · Idea | — | — | May 2026 | Recent |
| SU-0163 | AI agent for custom industrial gearbox manufacturing looks for a technical partnerTechnical co-founder / CTO · Location not stated | AI, SaaS & B2B software · Idea | Equity and salary | — | May 2026 | Recent |
| SU-0162 | Clinical AI and EHR platform with live product seeks a physician co-founder (clinical lead)Industry expert · Texas, United States | Health, AI · Live product or beta | Full-time | Remote | May 2026 | Recent |
| SU-0161 | Catalyst-materials startup with patent-pending core-shell technology seeks a business co-founder in ConnecticutCEO & business, Sales & partnerships · Storrs Mansfield, Connecticut, United States | Deep tech, Climate & energy | Full-time · Equity only | Hybrid | Apr 2026 | Recent |
| SU-0160 | AI staffing service for solo lawyers and small firms seeks a technical co-founder (CTO)Technical co-founder / CTO, AI & machine learning · Austin, Texas, United States | Legal & public sector, AI · Live product or beta | — | — | Apr 2026 | Recent |
| SU-0159 | Live AI platform for local service businesses seeks an equity-only cofounder as Chief Revenue OfficerSales & partnerships, Marketing & growth · United States | SaaS & B2B software, Marketplaces, AI · Live product or beta | Full-time · Equity only | — | Apr 2026 | Recent |
| SU-0158 | AI-native social connection platform for life transitions seeks a COO co-founder in San FranciscoOperations / COO, Marketing & growth · San Francisco, California, United States | Consumer & social, AI | Equity only | — | Apr 2026 | Recent |
| SU-0157 | AI tool that generates design systems, in beta, seeking a technical co-founderTechnical co-founder / CTO · Warsaw, Poland | AI · Live product or beta | — | — | Apr 2026 | Recent |
| SU-0156 | Programmer seeks industry experts to co-found part-time software products from industry pain pointsIndustry expert · Location not stated | SaaS & B2B software · Idea | Part-time | — | Apr 2026 | Recent |
| SU-0155 | Luxury and fashion tokenization/AI platform seeks a New York based equity co-founderMarketing & growth, Sales & partnerships · New York, United States | Commerce & retail, Crypto & web3, AI | Part-time · Equity only | Remote | Apr 2026 | Recent |
| SU-0462 | Voice-driven parking decision layer for navigation apps seeks a hands-on technical cofounderTechnical co-founder / CTO, Mobile & apps · Netherlands | Mobility & logistics, Consumer & social · Prototype | Equity only | Remote | Apr 2026 | Recent |
| SU-0154 | Canvas-based AI workspace with branching chats and model switching; founder seeks a B2B-sales co-founderSales & partnerships · Location not stated | AI, SaaS & B2B software · Live product or beta | — | — | Apr 2026 | Recent |
| SU-0153 | Early-stage antimicrobial-resistance biotech seeks a scientific CTO co-founder in SeattleTechnical co-founder / CTO, Science & R&D · Seattle, Washington, United States | Biotech & life sciences, Health | Full-time · Equity only | — | Apr 2026 | Recent |
| SU-0152 | Treasury manager and financial operating layer for AI agentsTechnical co-founder / CTO, AI & machine learning · Location not stated | Fintech, AI | — | — | Apr 2026 | Recent |
| SU-0151 | Pre-seed AI dating app in beta looks for a technical co-founder and CTO in AustinTechnical co-founder / CTO · Austin, Texas, United States | Consumer & social, AI · Live product or beta | Full-time | — | Apr 2026 | Recent |
| SU-0150 | Healthcare-AI venture studio recruits a CTO co-founder for one of its venturesTechnical co-founder / CTO · New York, United States | Health, AI | Full-time | On site | Apr 2026 | Recent |
| SU-0461 | Portfolio SaaS for remote professionals seeks a co-founder-level head of marketingMarketing & growth · Location not stated | SaaS & B2B software, HR & future of work | Equity only | Remote | Apr 2026 | Recent |
| SU-0149 | Curated wine-registry marketplace for couples seeks a technical co-founder, Napa-based, remote-friendlyTechnical co-founder / CTO · Napa, California, United States | Commerce & retail, Consumer & social, Food & agriculture · Idea | — | Remote | Mar 2026 | Recent |
| SU-0148 | Photonics-based AI processor and supercomputing company seeks co-founders to join its core founding teamCEO & business, Finance / CFO · Bengaluru, India | Hardware, robotics & IoT, Deep tech, AI | — | Hybrid | Mar 2026 | Recent |
| SU-0408 | Non-technical company investing in a new project seeks a senior full-stack or blockchain/ZK technical partnerTechnical co-founder / CTO, Blockchain & web3 · Location not stated | Crypto & web3 · Idea | — | — | Mar 2026 | Recent |
| SU-0147 | AI and IoT remote health-monitoring ecosystem seeks a CTO and co-founder in BengaluruTechnical co-founder / CTO, AI & machine learning, Data & infrastructure · Bengaluru, Karnataka, India | Health, Hardware, robotics & IoT, AI | Equity only | — | Mar 2026 | Recent |
| SU-0146 | Pre-launch Canadian sports platform for athletes seeks a backend CTO and co-founderTechnical co-founder / CTO · Toronto, Ontario, Canada | SaaS & B2B software, Consumer & social · Prototype | Full-time · Equity only | Hybrid | Mar 2026 | Recent |
| SU-0145 | Group travel platform with trip chat, multi-destination search and split paymentsTechnical co-founder / CTO · Geneva, Switzerland | Travel & hospitality, Consumer & social · Prototype | Equity only | — | Mar 2026 | Recent |
| SU-0355 | Platform for structured natural-language DSLs linking non-technical users, LLMs and deterministic logicOpen role · Location not stated | Developer tools, AI · Prototype | — | — | Mar 2026 | Recent |
| SU-0144 | TypeScript server framework that runs handlers across many runtimes, adding an AI-agent layer; seeks a co-founderCEO & business, Marketing & growth · Location not stated | Developer tools, AI · Live product or beta | — | — | Mar 2026 | Recent |
| SU-0459 | Stealth AI system aiming to disrupt SaaS, with an open-source core, seeks a co-founder and AI engineersAI & machine learning, Technical co-founder / CTO · Location not stated | AI, SaaS & B2B software · Live product or beta | — | Remote | Mar 2026 | Recent |
| SU-0354 | Platform for sharing and collaborating on ML and bio research, like Hugging Face for academic researchOpen role · Location not stated | AI, Biotech & life sciences | — | Remote | Mar 2026 | Recent |
| SU-0143 | 3D car customization platform to preview real aftermarket parts, seeking a Three.js technical co-founderTechnical co-founder / CTO · San Francisco Bay Area, United States | Commerce & retail, Consumer & social · Prototype | Equity only | Remote | Mar 2026 | Recent |
| SU-0142 | Compliance decision layer producing audit-ready KYB packets seeks a zero-to-one sales co-founderSales & partnerships · Location not stated | Fintech, SaaS & B2B software · Prototype | — | — | Feb 2026 | Recent |
| SU-0141 | AI platform automating software stack migrations, starting with Android to Flutter, seeks technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | Developer tools, AI · Idea | — | — | Feb 2026 | Recent |
| SU-0140 | Stealth marketplace for AI skills deployable via web, MCP and API seeks an equity-only technical co-founderTechnical co-founder / CTO, AI & machine learning · United States | AI, SaaS & B2B software · Prototype | Equity only | Remote | Feb 2026 | Recent |
| SU-0139 | Bubble-built B2C platform with early revenue offers a co-founder title for dev and growth helpTechnical co-founder / CTO, Marketing & growth · Location not stated | Consumer & social · Paying customers | Part-time | — | Feb 2026 | Recent |
| SU-0353 | Generative 3D design platform for physical spaces seeks a technical co-founder to own the architectureTechnical co-founder / CTO · Amsterdam, Netherlands | AI, Real estate & construction · Prototype | Full-time | — | Feb 2026 | Recent |
| SU-0405 | AI social-video project tied to e-commerce attribution seeks a founding CTO as technical partnerTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Media & creators, Commerce & retail · Idea | — | — | Feb 2026 | Recent |
| SU-0138 | Benchmark of frontier LLMs on drug-discovery tasks; solo founder wants a co-founder to move fasterTechnical co-founder / CTO · Location not stated | AI, Biotech & life sciences · Prototype | — | — | Feb 2026 | Recent |
| SU-0137 | AI agent infrastructure startup seeking a technical co-founderTechnical co-founder / CTO · Location not stated | AI, Developer tools | — | — | Feb 2026 | Recent |
| SU-0456 | AI-guided financial platform for inexperienced users seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | Fintech, AI, Consumer & social | Equity and salary | Remote | Feb 2026 | Recent |
| SU-0136 | Mobile multiplayer cricket game studio in open testing seeks a game-developer co-founder in BengaluruTechnical co-founder / CTO, Mobile & apps · Bengaluru, India | Gaming · Live product or beta | Flexible · Equity only | — | Jan 2026 | Recent |
| SU-0135 | Identity and access infrastructure startup in Austin seeks an equity co-founderCEO & business, Sales & partnerships · Austin, Texas, United States | Cybersecurity, Developer tools · Idea | Flexible · Equity only | — | Jan 2026 | Recent |
| SU-0134 | Declarative point-and-click editor for GUI-database apps seeks a non-technical co-founderCEO & business, Finance / CFO, Marketing & growth · Location not stated | Developer tools, SaaS & B2B software · Idea | — | — | Jan 2026 | Recent |
| SU-0133 | Multi-tenant call-centre platform for African businesses seeks a technical co-founderTechnical co-founder / CTO · Location not stated | SaaS & B2B software · Prototype | Equity only | — | Jan 2026 | Recent |
| SU-0404 | AI automated ad-agency SaaS for cross-border e-commerce seeks a COO / business co-founderOperations / COO, Sales & partnerships, Finance / CFO · Location not stated | AI, SaaS & B2B software, Commerce & retail · Live product or beta | — | — | Jan 2026 | Recent |
| SU-0132 | Open HTTP-native durable event log on Raft, solo technical founder seeks a go-to-market co-founderMarketing & growth, Product · Location not stated | Developer tools · Prototype | — | — | Jan 2026 | Recent |
| SU-0455 | AI pairing engine that suggests pastries from coffee shop menus seeks a full-stack co-founderTechnical co-founder / CTO · Location not stated | Food & agriculture, AI · Idea | — | — | Jan 2026 | Recent |
| SU-0403 | Shanghai AI content-factory idea seeks a partner-level CTO for generation and multi-platform publishingTechnical co-founder / CTO, AI & machine learning · Shanghai, China | AI, Media & creators · Idea | Full-time · Equity and salary | On site | Jan 2026 | Recent |
| SU-0131 | Consumer fintech helping users pick the best card or offer at checkout seeks an equity-only technical co-founderTechnical co-founder / CTO · Bengaluru, India | Fintech, Consumer & social · Live product or beta | Full-time · Equity only | — | Jan 2026 | Recent |
| SU-0130 | PhD-led deep-tech idea in neuromorphic and next-generation memory devices seeks co-foundersScience & R&D, Hardware & robotics, CEO & business · Location not stated | Deep tech, Hardware, robotics & IoT · Idea | Equity only | Remote | Jan 2026 | Recent |
| SU-0129 | Guided, safety-enforced troubleshooting software for industrial machine downtime seeks a technical co-founderTechnical co-founder / CTO · Location not stated | SaaS & B2B software · Idea | — | — | Jan 2026 | Recent |
| SU-0128 | Venture studio recruits co-founders (CEO, CTO or CMO) for a newly launched, funded startupCEO & business, Technical co-founder / CTO, Marketing & growth · United States | Funded | Full-time · Equity and salary | — | Jan 2026 | Recent |
| SU-0127 | Studio-backed AI content-analytics platform seeks a full-stack AI co-founder / CTO to build its engineTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Media & creators, SaaS & B2B software · Prototype | Full-time · Equity only | — | Jan 2026 | Recent |
| SU-0126 | Early-stage music production and marketing studio seeks an equity-based business co-founder in Los AngelesCEO & business, Finance / CFO, Operations / COO · Los Angeles, California, United States | Media & creators | Flexible · Equity only | Remote | Jan 2026 | Recent |
| SU-0125 | Tool to counter interview-cheating apps for employers and honest engineers; founder seeks a sales co-founderSales & partnerships · Location not stated | HR & future of work, Cybersecurity · Prototype | — | — | Jan 2026 | Recent |
| SU-0454 | Social-finance fundraising platform plus music visualizer seeks equity-only co-foundersTechnical co-founder / CTO · South Korea | Fintech, Media & creators · Prototype | Equity only | Remote | Jan 2026 | Recent |
| SU-0124 | Pre-launch Ontario startup seeks a full-time tech co-founder as chief software engineerTechnical co-founder / CTO · Brampton, Ontario, Canada | Idea | Full-time · Equity and salary | Remote | Jan 2026 | Recent |
| SU-0123 | Text-driven modern baseball management simulation game seeks a technical co-founder, equity-firstTechnical co-founder / CTO · Location not stated | Gaming · Idea | Equity only | — | Dec 2025 | Recent |
| SU-0402 | Customer-feedback analytics tool for SMBs seeks a front-end core partner on virtual equityTechnical co-founder / CTO · Hangzhou, China | SaaS & B2B software, AI · Live product or beta | Equity only | — | Dec 2025 | Recent |
| SU-0122 | Artist marketplace and agency platform in New York seeks an equity-only co-founderCEO & business, Marketing & growth · New York, United States | Marketplaces, Media & creators | Full-time · Equity only | Hybrid | Dec 2025 | Recent |
| SU-0121 | City-experience platform with 100+ merchant partners seeks a remote technical partner to scale nationallyTechnical co-founder / CTO · Location not stated | Consumer & social, Travel & hospitality, Gaming · Live product or beta | — | Remote | Dec 2025 | Recent |
| SU-0120 | South African app store programme seeks equity-only co-founders with app or SaaS ideas, domain expertise or reachCEO & business, Industry expert, Content & community · Johannesburg, South Africa | Marketplaces, SaaS & B2B software | Equity only | — | Dec 2025 | Recent |
| SU-0119 | Stealth voice-AI companion startup in San Francisco seeks a tech co-founder for equityTechnical co-founder / CTO, AI & machine learning · San Francisco, California, United States | AI, Consumer & social | Full-time · Equity only | — | Dec 2025 | Recent |
| SU-0118 | Stealth pre-seed AI commerce startup offers a WebGL/Three.js cofounder track with 30% equityTechnical co-founder / CTO · San Francisco, California, United States | Commerce & retail, AI | — | — | Dec 2025 | Recent |
| SU-0401 | Niche tactical-gear marketplace app in Chengdu seeks 3D, operations and UI partnersDesign & UX, Operations / COO · Chengdu, China | Marketplaces, Consumer & social · Live product or beta | — | — | Dec 2025 | Recent |
| SU-0117 | Early-stage prompt and AI-workflow tool seeks a hands-on equity-only CTO co-founderTechnical co-founder / CTO · Miami, Florida, United States | AI, SaaS & B2B software | Equity only | Remote | Dec 2025 | Recent |
| SU-0116 | Zillow-style real estate marketplace for Algeria with a working MVP seeks a technical co-founderTechnical co-founder / CTO · Location not stated | Real estate & construction, Marketplaces · Live product or beta | — | — | Dec 2025 | Recent |
| SU-0115 | Tool measuring how brands appear in ChatGPT, Perplexity and Gemini seeks a technical co-founderTechnical co-founder / CTO, Data & infrastructure, AI & machine learning · Bengaluru, India | AI, SaaS & B2B software | Equity only | Remote | Dec 2025 | Recent |
| SU-0114 | Forming New Jersey nonprofit seeks founding co-founders and board members for a planetary-healing ecosystemOperations / COO, Finance / CFO · New Jersey, United States | Social impact, Health, Climate & energy · Idea | Part-time | Remote | Dec 2025 | Recent |
| SU-0113 | Industrial stainless-steel flange seller seeks a growth-engineer technical co-founder for its online presenceTechnical co-founder / CTO, Marketing & growth · Location not stated | Commerce & retail | Part-time · Equity and salary | — | Dec 2025 | Recent |
| SU-0111 | Early-stage cross-border connections platform seeks a business co-founder to complement a technical founderCEO & business, Marketing & growth · San Francisco, California, United States | Consumer & social, Travel & hospitality · Live product or beta | — | — | Dec 2025 | Recent |
| SU-0110 | AI receptionist product seeks a go-to-market co-founderMarketing & growth, Sales & partnerships · Location not stated | AI, SaaS & B2B software | — | — | Dec 2025 | Recent |
| SU-0109 | Studio venture building AI compliance review for SEC/FINRA-regulated firms seeks a CEO co-founderCEO & business · Location not stated | Fintech, AI, SaaS & B2B software | Full-time | — | Dec 2025 | Recent |
| SU-0399 | Language-learning app with paying users seeks a co-founder to take over its Elixir backendTechnical co-founder / CTO · Location not stated | Education, Consumer & social · Paying customers | Equity only | Remote | Dec 2025 | Recent |
| SU-0398 | Planned quantitative trading firm seeks a US-based co-founder with strong open-source credentialsTechnical co-founder / CTO · United States | Fintech · Idea | — | — | Dec 2025 | Recent |
| SU-0397 | App platform for robots (vacuums, drones, humanoids) seeks a founding software engineer or cofounderTechnical co-founder / CTO, Hardware & robotics · Location not stated | Hardware, robotics & IoT, AI · Paying customers | Full-time | Remote | Dec 2025 | Recent |
| SU-0108 | Private health-insurance billing automation in Germany with 100 paying customers seeks a CTO co-founder in HamburgTechnical co-founder / CTO · Hamburg, Germany | Health, Fintech · Paying customers | Equity and salary | Hybrid | Nov 2025 | Recent |
| SU-0107 | AI tools for European SMBs; seeks a CTO co-founder to work alongside the existing founder in BerlinTechnical co-founder / CTO, AI & machine learning · Berlin, Germany | AI, SaaS & B2B software | Full-time · Equity and salary | On site | Nov 2025 | Recent |
| SU-0395 | Asset-light mall parking-data SaaS seeks a technical co-founder / CTOTechnical co-founder / CTO · Location not stated | Real estate & construction, SaaS & B2B software · Idea | — | — | Nov 2025 | Recent |
| SU-0453 | Crypto quantitative-trading platform seeks a Python/React part-time developer who can become a partnerTechnical co-founder / CTO, Blockchain & web3 · Location not stated | Fintech, Crypto & web3 · Live product or beta | Part-time | — | Nov 2025 | Recent |
| SU-0452 | Beijing AI power-equipment O&M startup with delivered orders seeks algorithm and full-stack partnersAI & machine learning, Technical co-founder / CTO · Beijing, China | Climate & energy, AI, Hardware, robotics & IoT · Live product or beta | Flexible · Equity only | — | Nov 2025 | Recent |
| SU-0394 | AI order-entry automation for mid-market manufacturers seeks employee #2 to grow into co-founderTechnical co-founder / CTO · United States | AI, SaaS & B2B software · Live product or beta | Equity and salary | Remote | Nov 2025 | Recent |
| SU-0106 | Startup seeks an equity-only sales and marketing co-founderSales & partnerships, Marketing & growth · Location not stated | — | Equity only | — | Nov 2025 | Recent |
| SU-0451 | Gift-money ledger app with QR payments seeks a technical co-founder as future CTOTechnical co-founder / CTO · Location not stated | Fintech, Consumer & social · Prototype | — | — | Nov 2025 | Recent |
| SU-0393 | AI tool turning long videos into searchable personalised knowledge clips seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Media & creators · Live product or beta | — | — | Nov 2025 | Recent |
| SU-0506 | AI image and video subscription business targeting overseas markets seeks a product-manager partner / co-founderProduct · Location not stated | AI, Consumer & social, Media & creators · Paying customers | Equity and salary | — | Oct 2025 | Older |
| SU-0105 | Conversational-AI layer that matches people by how they think; early-stage, seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Consumer & social · Idea | — | — | Oct 2025 | Older |
| SU-0104 | Pre-funding AI-first financial platform with tokenization and marketplace tech seeks a founding CTO partnerTechnical co-founder / CTO, AI & machine learning, Finance / CFO · Dubai, United Arab Emirates | Fintech, AI, Crypto & web3 · Idea | Flexible · Equity and salary | Hybrid | Oct 2025 | Older |
| SU-0103 | AI operating architecture aimed at creative partnership and local sovereigntyTechnical co-founder / CTO, AI & machine learning · Location not stated | AI | — | — | Oct 2025 | Older |
| SU-0352 | Vibecoding platform recruiting a co-founderOpen role · Location not stated | Developer tools, AI | — | — | Oct 2025 | Older |
| SU-0102 | Service connecting entrepreneurs with junior developers who build MVPs using AI toolsTechnical co-founder / CTO, Marketing & growth, Product · Location not stated | HR & future of work, AI · Live product or beta | — | — | Oct 2025 | Older |
| SU-0101 | Financial EVM Layer-2 protocol combining banking and DeFi with enforceable credit; seeks co-foundersBlockchain & web3, Finance / CFO · Location not stated | Crypto & web3, Fintech | — | — | Oct 2025 | Older |
| SU-0392 | Bootstrapped health-tech AI company seeks a full-stack developer on a path to co-founderTechnical co-founder / CTO, Mobile & apps · Location not stated | Health, AI · Live product or beta | Full-time · Equity and salary | Remote | Oct 2025 | Older |
| SU-0450 | Solo backend/ML developer with a live AI vocal-separation site seeks a product partner for overseas web productsProduct · Beijing, China | AI, SaaS & B2B software · Live product or beta | — | — | Oct 2025 | Older |
| SU-0100 | Early-stage AI application team in Zhongshan seeks Go/Python AI backend technical partnerTechnical co-founder / CTO, AI & machine learning · Zhongshan, China | AI · Prototype | Full-time · Equity and salary | On site | Oct 2025 | Older |
| SU-0099 | Software product with early sales seeking a non-technical or sales co-founderCEO & business, Sales & partnerships · Location not stated | SaaS & B2B software · Paying customers | — | — | Oct 2025 | Older |
| SU-0098 | Bootstrapped digital-legacy web platform seeks a hands-on technical co-founder for equityTechnical co-founder / CTO · Location not stated | Consumer & social | Equity only | — | Oct 2025 | Older |
| SU-0097 | Universal open runtime to run any AI framework on any GPU seeks a CTO co-founder with GPU/compiler depthTechnical co-founder / CTO, AI & machine learning · Switzerland | AI, Developer tools · Prototype | — | — | Oct 2025 | Older |
| SU-0096 | Professional upskilling network with learning pathways seeks a technical co-founder or founding engineerTechnical co-founder / CTO · Location not stated | Education · Live product or beta | — | — | Sep 2025 | Older |
| SU-0095 | Founder of a seven-figure software agency in Madrid seeks a technical co-founder for a new startupTechnical co-founder / CTO · Madrid, Spain | — | — | — | Sep 2025 | Older |
| SU-0391 | Idea-stage venture seeks co-founders interested in robotics, longevity and entertainmentTechnical co-founder / CTO, Hardware & robotics · Location not stated | Hardware, robotics & IoT, Biotech & life sciences, Media & creators · Idea | — | — | Sep 2025 | Older |
| SU-0390 | Tech-for-climate startup seeks a technical co-founder with software/AI skills or deep climate-tech knowledgeTechnical co-founder / CTO, Science & R&D · Location not stated | Climate & energy | — | — | Sep 2025 | Older |
| SU-0094 | Construction-bidding AI prototype with accelerator and angel interest seeks a co-founderTechnical co-founder / CTO · Location not stated | SaaS & B2B software, AI · Prototype | — | — | Sep 2025 | Older |
| SU-0093 | Solo founder exploring robotics, AI infrastructure and engineering tools seeks an equal-ownership co-founderHardware & robotics, AI & machine learning · Location not stated | Hardware, robotics & IoT, AI · Idea | — | — | Sep 2025 | Older |
| SU-0449 | Hangzhou vertical-AI startup with MVP and letters of intent seeks a backend technical co-founderTechnical co-founder / CTO · Hangzhou, China | AI · Live product or beta | Full-time | On site | Sep 2025 | Older |
| SU-0351 | First apps marketplace for consumer robots seeks a co-founderOpen role · Location not stated | Hardware, robotics & IoT, Marketplaces | — | — | Sep 2025 | Older |
| SU-0448 | Desktop app for one-click video distribution to Chinese platforms seeks an operations partnerMarketing & growth · Location not stated | Media & creators, SaaS & B2B software · Live product or beta | — | — | Sep 2025 | Older |
| SU-0389 | Robot AI for messy warehouse tasks seeks technical and commercial co-founders in San FranciscoTechnical co-founder / CTO, Sales & partnerships · San Francisco, California, United States | Hardware, robotics & IoT, AI | Equity and salary | On site | Sep 2025 | Older |
| SU-0505 | Beijing quantitative-finance project with early users seeks a full-stack technical partnerTechnical co-founder / CTO · Beijing, China | Fintech · Live product or beta | — | Remote | Aug 2025 | Older |
| SU-0447 | Operations-background founder with self-media traffic seeks an independent developer as technical co-founderTechnical co-founder / CTO · Location not stated | Media & creators | — | — | Aug 2025 | Older |
| SU-0092 | AI penetration-testing agent startup backed by a cybersecurity-training platform seeks a technical co-founderTechnical co-founder / CTO · Location not stated | Cybersecurity, AI | — | — | Aug 2025 | Older |
| SU-0091 | AI learning coach for tech skills seeks an equity-based growth and marketing co-founderMarketing & growth · Location not stated | Education, AI · Live product or beta | Equity only | — | Aug 2025 | Older |
| SU-0090 | Stealth supply-chain platform starting in Algeria and scaling across Africa seeks an equity-only CTO co-founderTechnical co-founder / CTO · Location not stated | Marketplaces, Commerce & retail · Live product or beta | Equity only | Remote | Aug 2025 | Older |
| SU-0089 | Two-founder robotics startup upgrading existing platforms seeks a hands-on technical co-founder in North CarolinaHardware & robotics, Technical co-founder / CTO · North Carolina, United States | Hardware, robotics & IoT | Full-time · Equity only | On site | Aug 2025 | Older |
| SU-0088 | Platform matching mood and context to local experiences instead of generic listsTechnical co-founder / CTO · New York, United States | Consumer & social | Equity only | — | Aug 2025 | Older |
| SU-0503 | Solo developer building an AI social-content distribution app seeks an agent-product partnerProduct, Marketing & growth · Location not stated | AI, Media & creators · Prototype | — | — | Aug 2025 | Older |
| SU-0087 | Overseas home-decoration marketplace project recruits a technical co-founderTechnical co-founder / CTO · Location not stated | Real estate & construction, Marketplaces | — | — | Aug 2025 | Older |
| SU-0086 | AI-personalized hyper-local audio news app seeks technical and non-technical co-foundersAI & machine learning, Mobile & apps, Sales & partnerships · California, United States | Media & creators, AI · Prototype | Part-time · Equity only | Remote | Aug 2025 | Older |
| SU-0387 | Solo-built 'new kind of blockchain' project looking for co-founders and developersBlockchain & web3, Technical co-founder / CTO · Location not stated | Crypto & web3 | — | — | Aug 2025 | Older |
| SU-0350 | Fintech platform unifying global markets with terminal-grade analytics and AI seeks a co-founderOpen role · Location not stated | Fintech, AI | — | — | Aug 2025 | Older |
| SU-0085 | Mobile gaming app that uses AI to generate games adapting to the player's moodTechnical co-founder / CTO, Mobile & apps, AI & machine learning · Location not stated | Gaming, AI, Consumer & social | — | — | Aug 2025 | Older |
| SU-0084 | Early-stage AI companion app for caregivers in closed alpha seeks an equity-only technical co-founderTechnical co-founder / CTO, AI & machine learning · Bellevue, Washington, United States | Consumer & social, AI · Live product or beta | Full-time · Equity only | Remote | Aug 2025 | Older |
| SU-0083 | Women-focused life-design brand building an AI mobile app seeks a part-time equity technical co-founderTechnical co-founder / CTO, Mobile & apps · Brooklyn, New York, United States | Consumer & social, AI | Part-time · Equity only | Remote | Aug 2025 | Older |
| SU-0386 | Group payment platform for merchant checkouts seeks a technical co-founder to lead the MVPTechnical co-founder / CTO · Valencia, Spain | Fintech, Commerce & retail | Full-time | — | Aug 2025 | Older |
| SU-0082 | AI operating system for women's safety and empowerment, solo India-based founder seeks technical or strategic co-founderTechnical co-founder / CTO, CEO & business · India | AI, Social impact · Prototype | — | — | Aug 2025 | Older |
| SU-0349 | Reusable orbital spacecraft that retrieves payloads and returns them to Earth, seeks partnersOpen role · Location not stated | Deep tech · Idea | — | — | Aug 2025 | Older |
| SU-0081 | Next-generation large crewed space station, seeks technical and business co-foundersHardware & robotics, Technical co-founder / CTO, CEO & business · Location not stated | Deep tech, Hardware, robotics & IoT · Idea | — | — | Aug 2025 | Older |
| SU-0080 | AI agent workforce for startups, integrated into Slack, GitHub and Discord, seeks co-founder with B2B contactsSales & partnerships · Location not stated | AI, SaaS & B2B software, Developer tools · Idea | — | — | Aug 2025 | Older |
| SU-0079 | AI learning engine that personalises learning journeys around a user's curiosityTechnical co-founder / CTO, AI & machine learning · London, United Kingdom | Education, AI · Live product or beta | — | On site | Jul 2025 | Older |
| SU-0078 | AI-powered financial operating system for personal finance with ML-driven coachingTechnical co-founder / CTO, AI & machine learning · Location not stated | Fintech, AI | — | — | Jul 2025 | Older |
| SU-0077 | Student founder in Toronto building synthetic data generation seeks a technical co-founderData & infrastructure, AI & machine learning · Toronto, Canada | AI · Idea | — | — | Jul 2025 | Older |
| SU-0076 | Nonprofit digital faith platform with AI features seeks a founding technical AI co-founderTechnical co-founder / CTO, AI & machine learning · Seattle, Washington, United States | Consumer & social, AI, Social impact | Full-time | — | Jun 2025 | Older |
| SU-0075 | Enterprise AI agents for pharma and chemicals with paid pilots, solo founder seeks a CTO co-founderTechnical co-founder / CTO · Location not stated | AI, SaaS & B2B software · Paying customers | Equity and salary | — | Jun 2025 | Older |
| SU-0348 | YouTube learning tool with AI insights, learning paths and token rewardsOpen role · Location not stated | Education, Consumer & social, AI · Live product or beta | — | — | Jun 2025 | Older |
| SU-0074 | Real-time AI sales coach used during calls seeks a technical co-founder with an AI backgroundAI & machine learning, Technical co-founder / CTO · Location not stated | AI, SaaS & B2B software · Live product or beta | — | — | Jun 2025 | Older |
| SU-0073 | Early-stage social platform for meaningful connection and positive impact seeks a technical co-founderTechnical co-founder / CTO · Bay Area, United States | Consumer & social, Social impact | — | — | Jun 2025 | Older |
| SU-0072 | AI-native fulfilment SaaS seeks a founding PM as co-founderProduct · Location not stated | SaaS & B2B software, AI, Commerce & retail | — | — | Jun 2025 | Older |
| SU-0071 | AI design agent that turns prompts and sketches into software designs, designer founder seeks a full-stack co-founderTechnical co-founder / CTO · Location not stated | AI, Developer tools · Prototype | — | — | Jun 2025 | Older |
| SU-0347 | Weekend-built tool for a niche problem in the blue-collar industry, three users so farOpen role · Location not stated | Live product or beta | — | — | Jun 2025 | Older |
| SU-0070 | AI-agent web-scraping platform in Manchester seeks a product-minded technical co-founder, equity only at launchTechnical co-founder / CTO, Product · Manchester, United Kingdom | AI, Developer tools, SaaS & B2B software | Full-time · Equity only | On site | May 2025 | Older |
| SU-0069 | Personalized digital hub unifying a user's apps, tools and online services seeks a technical co-founderTechnical co-founder / CTO · Location not stated | Consumer & social, SaaS & B2B software | — | — | May 2025 | Older |
| SU-0068 | AI social-media marketing agent with early user validation seeks full-stack technical partnerTechnical co-founder / CTO · Location not stated | AI, SaaS & B2B software · Prototype | — | — | May 2025 | Older |
| SU-0067 | Poker tournament training app for novice and losing players; seeks a UX/product designer co-founderDesign & UX · Location not stated | Gaming, Consumer & social | — | — | May 2025 | Older |
| SU-0066 | Startup looking for a co-founder to solve distributionMarketing & growth · Location not stated | — | — | — | May 2025 | Older |
| SU-0065 | Live 'intelligent business board' for small businesses seeks a Bubble technical co-founderTechnical co-founder / CTO · Europe | SaaS & B2B software · Live product or beta | Flexible · Equity and salary | Hybrid | May 2025 | Older |
| SU-0384 | Stealth rich-media e-commerce and social platform with revenue seeks a hands-on co-founderTechnical co-founder / CTO · Location not stated | Commerce & retail, Media & creators · Paying customers | Equity and salary | Remote | May 2025 | Older |
| SU-0064 | Cross-border creator marketing tool with paying users seeks an overseas growth and channel partnerMarketing & growth · Location not stated | AI, SaaS & B2B software, Media & creators · Paying customers | Equity only | Remote | May 2025 | Older |
| SU-0063 | Hair-grooming startup seeks a Three.js/AI co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | Consumer & social · Idea | — | — | May 2025 | Older |
| SU-0383 | Protocol layer for shared memory among AI agents seeks a founding CTO and co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Developer tools | Full-time | Remote | May 2025 | Older |
| SU-0382 | AI copilot for operational planning in a dual-use startup seeks a technical cofounderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Legal & public sector · Prototype | Equity and salary | Remote | May 2025 | Older |
| SU-0062 | Review platform for online courses ('Yelp for online education') seeks an equity-only Bubble co-founderTechnical co-founder / CTO · Location not stated | Education, Marketplaces · Live product or beta | Equity only | — | May 2025 | Older |
| SU-0061 | Team with four overseas AIGC products seeks an overseas SEO expert as project partnerMarketing & growth · Shanghai, China | AI, Consumer & social · Funded | Part-time · Equity only | — | Apr 2025 | Older |
| SU-0060 | Community-driven social app for the dance world seeks a developer co-founderTechnical co-founder / CTO, Mobile & apps · Location not stated | Consumer & social, Media & creators · Idea | — | — | Apr 2025 | Older |
| SU-0059 | Tool for collecting user feedback to validate RAG evaluations in enterprise AITechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Developer tools · Idea | — | — | Apr 2025 | Older |
| SU-0381 | AI software services company in Colombo seeks a project-based technical co-founderTechnical co-founder / CTO, AI & machine learning · Colombo, Sri Lanka | AI, SaaS & B2B software · Paying customers | — | — | Apr 2025 | Older |
| SU-0058 | Unmanned aerial and maritime systems for military use, founder seeks a co-owner with engineering or defense backgroundHardware & robotics, Industry expert · Location not stated | Hardware, robotics & IoT, Deep tech | — | — | Apr 2025 | Older |
| SU-0380 | Computer-use tool for legacy software without APIs, spun out of a company builder, seeks co-foundersOpen role · Munich, Germany | AI, Developer tools | Full-time | — | Apr 2025 | Older |
| SU-0057 | Music discovery app where fans vote on artist clips seeks an equity-only technical co-founderTechnical co-founder / CTO · Location not stated | Media & creators, Consumer & social · Prototype | Full-time · Equity only | — | Apr 2025 | Older |
| SU-0056 | Freelance marketplace for workers with limited payment access seeks a finance co-founderFinance / CFO · Los Angeles, California, United States | Fintech, Marketplaces · Live product or beta | Equity only | — | Apr 2025 | Older |
| SU-0055 | Website helping people find the best weather for a trip or relocation; founder seeks co-founders for monetizationMarketing & growth, CEO & business · Location not stated | Consumer & social, Travel & hospitality | — | — | Mar 2025 | Older |
| SU-0054 | Pre-MVP AI-enhanced consumer content platform seeks a full-time equity technical co-founder in the USTechnical co-founder / CTO · Miami, Florida, United States | Consumer & social, AI, Media & creators · Idea | Full-time · Equity only | Remote | Mar 2025 | Older |
| SU-0053 | Next-generation AI travel-tech startup looking for a tech co-founderTechnical co-founder / CTO · Location not stated | Travel & hospitality, AI | — | — | Mar 2025 | Older |
| SU-0052 | AI-powered ASPM platform seeking a US-based CEO co-founderCEO & business, Sales & partnerships, Finance / CFO · Madrid, Spain | Cybersecurity, AI · Paying customers | — | — | Mar 2025 | Older |
| SU-0051 | On-demand marketplace for short sessions with local photographers, in beta, seeks an equity-only technical co-founderTechnical co-founder / CTO, Mobile & apps · Location not stated | Marketplaces, Consumer & social · Live product or beta | Equity only | — | Mar 2025 | Older |
| SU-0050 | Stealth healthcare-AI startup from a venture studio seeks a full-time technical co-founder in New YorkTechnical co-founder / CTO · New York, United States | Health, AI · Idea | Full-time · Equity and salary | — | Mar 2025 | Older |
| SU-0049 | New county-level AI company with business side and backer seeks front/back-end technical co-foundersTechnical co-founder / CTO · Guang'an, China | AI, SaaS & B2B software, Legal & public sector · Idea | Equity and salary | Hybrid | Mar 2025 | Older |
| SU-0048 | Chengdu AI compute-sharing platform with angel funding agreed seeks senior technical partnerTechnical co-founder / CTO · Chengdu, China | AI, SaaS & B2B software · Prototype | Full-time · Equity and salary | — | Mar 2025 | Older |
| SU-0047 | LinkedIn multi-account automation app, about 95% built in Bubble, seeks a Bubble-expert co-founderTechnical co-founder / CTO · Location not stated | SaaS & B2B software · Prototype | — | — | Mar 2025 | Older |
| SU-0046 | B2B SaaS with early traction seeks a sales and business-development co-founderSales & partnerships · Location not stated | SaaS & B2B software | — | — | Mar 2025 | Older |
| SU-0379 | E-commerce platform for indie software developers seeks a part-time co-founder for commercial growthMarketing & growth, Sales & partnerships · Location not stated | Commerce & retail, SaaS & B2B software · Live product or beta | Part-time | Remote | Mar 2025 | Older |
| SU-0045 | Solo developer with a live interview-assistant web app seeks a student-type partner for new-media promotionMarketing & growth · Location not stated | HR & future of work · Live product or beta | Part-time | — | Feb 2025 | Older |
| SU-0044 | Live-streamed, fitness-style cycling workouts for open hardware; founder wants a cofounder who codes and cyclesTechnical co-founder / CTO · Location not stated | Consumer & social, Media & creators | — | — | Feb 2025 | Older |
| SU-0043 | Infinite-canvas map of a company's code and docs; founder seeks a GTM/sales-oriented cofounder in the NetherlandsSales & partnerships, Marketing & growth · Netherlands | Developer tools, SaaS & B2B software · Prototype | — | — | Feb 2025 | Older |
| SU-0346 | LAN gaming app for safer and faster multiplayer connectionsOpen role · Location not stated | Gaming | — | — | Feb 2025 | Older |
| SU-0042 | AI platform for residential real estate, validated with 25+ customer interviewsTechnical co-founder / CTO, AI & machine learning · London, United Kingdom | Real estate & construction, AI · Prototype | — | — | Feb 2025 | Older |
| SU-0041 | Wealth-education community for ages 21-42 seeks an equity-only co-founder for growth and partnershipsMarketing & growth, Sales & partnerships · New York, United States | Fintech, Education | Full-time · Equity only | — | Feb 2025 | Older |
| SU-0040 | Room-scaling and interior design software seeks a technical co-founder with 3D rendering skillsTechnical co-founder / CTO · Location not stated | Real estate & construction, Consumer & social | Equity only | — | Feb 2025 | Older |
| SU-0039 | Founder with a prior Amsterdam startup seeks a US technical co-founder for an AI ventureTechnical co-founder / CTO, AI & machine learning · Location not stated | AI · Idea | — | — | Feb 2025 | Older |
| SU-0378 | Entity and equity management platform for lawyers and investors seeks a sales co-founderSales & partnerships · Location not stated | Legal & public sector, Fintech, SaaS & B2B software | — | Remote | Feb 2025 | Older |
| SU-0038 | Computer-vision kitchen inventory tracking to reduce food wasteTechnical co-founder / CTO, AI & machine learning · Location not stated | Food & agriculture, AI, SaaS & B2B software · Live product or beta | — | — | Feb 2025 | Older |
| SU-0037 | Cambridge health-history startup out of MIT seeks an on-site design co-founderDesign & UX · Cambridge, Massachusetts, United States | Health, SaaS & B2B software | Full-time · Equity only | On site | Feb 2025 | Older |
| SU-0036 | Wireless-charging battery startup seeks an unpaid, equity-based co-founder for fundraising and salesFinance / CFO, Sales & partnerships · New York, United States | Hardware, robotics & IoT | Equity only | Remote | Jan 2025 | Older |
| SU-0035 | Psychology-driven talent and startup-advisory firm seeks an investing strategic co-founderCEO & business, Finance / CFO · Location not stated | HR & future of work | Full-time · Equity only | Remote | Jan 2025 | Older |
| SU-0377 | Idea-stage AI product founder in Delhi looks for a co-founderAI & machine learning · Delhi, India | AI · Idea | — | — | Jan 2025 | Older |
| SU-0034 | Security-focused hot wallet app for cryptoTechnical co-founder / CTO, Blockchain & web3 · Location not stated | Crypto & web3, Cybersecurity | — | — | Jan 2025 | Older |
| SU-0033 | Beta app with first paying customers seeking a technical co-founder in a Southeast Asia time zoneTechnical co-founder / CTO · Taiwan | Live product or beta | — | — | Jan 2025 | Older |
| SU-0032 | Pre-launch AI social connection platform in New York seeks a growth and operations co-founderCEO & business, Marketing & growth · New York, United States | Consumer & social, AI · Prototype | Full-time · Equity only | — | Dec 2024 | Older |
| SU-0031 | Profitable TypeScript npm library for automating FIX message workflows at trading firmsCEO & business, Technical co-founder / CTO · London, United Kingdom | Fintech, Developer tools · Paying customers | — | — | Dec 2024 | Older |
| SU-0376 | AI search model surfacing authentic creator voices seeks a technical co-founder and CTOTechnical co-founder / CTO, AI & machine learning · Paris, France | AI, Media & creators | — | — | Dec 2024 | Older |
| SU-0030 | Venture-incubated enterprise AI software startup in Menlo Park seeks a CTO co-founderTechnical co-founder / CTO, AI & machine learning · Menlo Park, California, United States | AI, SaaS & B2B software · Idea | Full-time | On site | Nov 2024 | Older |
| SU-0029 | Bootstrapped company with about $300K revenue seeking a full-stack technical co-founderTechnical co-founder / CTO · Location not stated | Paying customers | — | — | Nov 2024 | Older |
| SU-0375 | Radiation-hardened system-on-chip for smart ammunition electronics seeks a senior hardware engineerHardware & robotics · Ukraine | Hardware, robotics & IoT, Deep tech | — | Remote | Nov 2024 | Older |
| SU-0028 | Global gig and employment marketplace in development seeks a Bubble developer as partner or co-founderTechnical co-founder / CTO · Location not stated | Marketplaces, HR & future of work | Equity only | — | Nov 2024 | Older |
| SU-0345 | Job board that vets employers for legitimacy and charges candidates for accessOpen role · Location not stated | HR & future of work, Consumer & social · Idea | — | — | Oct 2024 | Older |
| SU-0027 | Ecommerce shipping solution starting with smaller stores, founder is an industry expertTechnical co-founder / CTO · Location not stated | Commerce & retail, SaaS & B2B software | — | — | Oct 2024 | Older |
| SU-0344 | Semi-technical founder looking for a technical co-founderTechnical co-founder / CTO · Location not stated | — | — | — | Oct 2024 | Older |
| SU-0026 | Founder seeking an operationally minded co-founder based in Los AngelesOperations / COO · Los Angeles, United States | — | — | — | Oct 2024 | Older |
| SU-0445 | Mental-health app to reduce phone use seeks an illustrator/UI designer, open to cofoundingDesign & UX · Munich, Germany | Health, Consumer & social | — | — | Oct 2024 | Older |
| SU-0374 | Mobile game platform with an AI game maker seeks a generalist co-founder and COOOperations / COO · Location not stated | Gaming, AI · Funded | — | Remote | Oct 2024 | Older |
| SU-0373 | Stealth AI-driven HR SaaS, starting with recruiting, seeks a highly technical co-founderTechnical co-founder / CTO · New York, United States | HR & future of work, AI, SaaS & B2B software · Idea | Flexible | Remote | Sep 2024 | Older |
| SU-0025 | Identity management solution secured by the Bitcoin blockchainTechnical co-founder / CTO, Blockchain & web3 · Location not stated | Cybersecurity, Crypto & web3 | — | — | Aug 2024 | Older |
| SU-0024 | B2B communications web app at idea stage, solo first-time founder seeking a technical co-founderTechnical co-founder / CTO · Location not stated | SaaS & B2B software · Idea | — | — | Aug 2024 | Older |
| SU-0023 | On-premises personal AI computer with a built MVP; solo founder seeks hardware-distribution co-founderOperations / COO, Hardware & robotics · Location not stated | AI, Hardware, robotics & IoT · Live product or beta | — | — | Aug 2024 | Older |
| SU-0022 | Hybrid 55-seat electric-helicopter/turboprop regional aircraft seeks third co-founder to lead aircraft designHardware & robotics · Location not stated | Mobility & logistics, Deep tech · Idea | — | — | Aug 2024 | Older |
| SU-0021 | Three-month-old B2B AI company at $200k ARR seeking a late co-founderTechnical co-founder / CTO, Industry expert · Location not stated | AI, SaaS & B2B software · Paying customers | — | — | Aug 2024 | Older |
| SU-0020 | Moroccan social network in the style of Reddit, product nearly finishedContent & community, Marketing & growth · Location not stated | Consumer & social, Media & creators · Prototype | — | — | Aug 2024 | Older |
| SU-0019 | Already-built SaaS app (70-80k lines of code) seeking a non-technical co-founderMarketing & growth, Industry expert · Location not stated | SaaS & B2B software · Prototype | — | — | Aug 2024 | Older |
| SU-0372 | Savings and payment platform for Middle East expatriates seeks a business-side co-founderFinance / CFO, CEO & business · Location not stated | Fintech · Idea | — | Remote | Aug 2024 | Older |
| SU-0018 | Platform turning 2D brand assets into 3D social content seeks a third co-founder as 3D engineerTechnical co-founder / CTO · Location not stated | Media & creators, Crypto & web3 · Paying customers | Equity only | Remote | Aug 2024 | Older |
| SU-0017 | Open-source project the startup seeking a co-founder who can design, code and act as CEOCEO & business, Technical co-founder / CTO, Design & UX · Location not stated | — | — | — | Jul 2024 | Older |
| SU-0444 | Business-background founder in India seeks technical co-founders to explore AI startup ideasTechnical co-founder / CTO, AI & machine learning · India | AI, Consumer & social, Real estate & construction · Idea | — | — | Jul 2024 | Older |
| SU-0443 | Aviation startup seeking a technical co-founder with web development (Ruby on Rails) skillsTechnical co-founder / CTO · Location not stated | Mobility & logistics | — | — | Jul 2024 | Older |
| SU-0371 | AI inspection platform for safety-critical components seeks a late co-founder as CTOTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Hardware, robotics & IoT | Full-time | Remote | Jul 2024 | Older |
| SU-0016 | Self-funded AI team with two profitable overseas products seeks a backend technical co-founderTechnical co-founder / CTO · Location not stated | AI, Consumer & social · Paying customers | Full-time | Remote | Jun 2024 | Older |
| SU-0015 | AI tool that finds optimal coagulation and flocculation conditions for water treatmentTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Climate & energy | — | — | Jun 2024 | Older |
| SU-0442 | Lawyer with a legal-tech idea seeks an engineer co-founder to build a prototypeTechnical co-founder / CTO · Location not stated | Legal & public sector · Idea | — | — | Jun 2024 | Older |
| SU-0441 | Netherlands-based pre-seed startup automating CT and MRI cancer-screening analysis seeks a machine-vision CTO co-founderTechnical co-founder / CTO, AI & machine learning · Netherlands | Health, AI | — | — | Jun 2024 | Older |
| SU-0014 | UK staffing-agency workforce management marketplace MVP seeks an equity-only Bubble technical co-founderTechnical co-founder / CTO · London or Winchester, United Kingdom | HR & future of work, SaaS & B2B software · Live product or beta | Equity only | On site | May 2024 | Older |
| SU-0440 | AI tool for personalized multi-channel sales outreach seeks a growth or marketing co-founderMarketing & growth · Location not stated | AI, SaaS & B2B software · Paying customers | — | — | May 2024 | Older |
| SU-0013 | Bubble web app for an industry convention seeks a long-term technical co-founder or partner for equityTechnical co-founder / CTO · Colorado, United States | SaaS & B2B software · Live product or beta | Equity only | — | May 2024 | Older |
| SU-0012 | Seed-funded prompt-evaluation tool for AI teams seeks full-stack/backend technical co-founderTechnical co-founder / CTO · Location not stated | AI, Developer tools · Funded | Flexible · Equity and salary | Remote | May 2024 | Older |
| SU-0439 | Collaborative news-map social app, already in its seventh production build, seeks a technical co-founderTechnical co-founder / CTO · Location not stated | Media & creators, Consumer & social · Live product or beta | — | — | May 2024 | Older |
| SU-0343 | AI platform detecting accounting manipulation and impact washing, seeking a CTO co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Fintech | — | — | May 2024 | Older |
| SU-0011 | Founder with an NLP/AI job-seeker tool idea seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | HR & future of work, AI · Idea | — | — | May 2024 | Older |
| SU-0438 | Business agility and digital transformation consultancy in the USA seeks a co-founderIndustry expert · United States | HR & future of work | — | — | Apr 2024 | Older |
| SU-0437 | Open-source LLM infrastructure seeks engineering co-founders for the projectTechnical co-founder / CTO · Location not stated | Developer tools, AI · Live product or beta | — | — | Apr 2024 | Older |
| SU-0436 | MVP-stage LLM product for government customers seeks a technical co-founder ahead of a YC interviewTechnical co-founder / CTO · San Francisco Bay Area, United States | Legal & public sector, AI · Live product or beta | — | — | Apr 2024 | Older |
| SU-0435 | AI platform using EEG data to predict effective TMS depression treatment seeks a healthcare-connected co-founderSales & partnerships, Industry expert · Location not stated | Health, AI · Prototype | — | — | Apr 2024 | Older |
| SU-0010 | Early community platform with rewards and visibility seeks a technical co-founder for a 50% stakeTechnical co-founder / CTO · Location not stated | Consumer & social · Prototype | Equity only | — | Apr 2024 | Older |
| SU-0009 | Two-founder AI startup with demos seeks a third co-founder with PhD-level AI research expertiseAI & machine learning · San Francisco, California, United States | AI · Prototype | Full-time | On site | Apr 2024 | Older |
| SU-0342 | Stealth startup rethinking payment processing from a consumer angle seeks technical co-founderTechnical co-founder / CTO · California, United States | Fintech | — | — | Apr 2024 | Older |
| SU-0341 | Rewards at physical merchants without app downloads, seeking a full-time iOS co-founderTechnical co-founder / CTO, Mobile & apps · Location not stated | Commerce & retail, Consumer & social · Live product or beta | Full-time | On site | Apr 2024 | Older |
| SU-0434 | Next-generation product information management (PIM) software seeks a front-end co-founderTechnical co-founder / CTO · Location not stated | SaaS & B2B software, Commerce & retail | — | — | Mar 2024 | Older |
| SU-0433 | Early team looking for a fourth co-founder to serve as VP of EngineeringTechnical co-founder / CTO · Location not stated | — | — | — | Mar 2024 | Older |
| SU-0432 | AI startup seeking a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI | — | — | Mar 2024 | Older |
| SU-0431 | Revenue-generating consumer AI app seeks a full-stack technical co-founderTechnical co-founder / CTO · Location not stated | AI, Consumer & social · Paying customers | Equity and salary | — | Mar 2024 | Older |
| SU-0339 | AI computer vision for security and insights in businesses and municipalities seeks technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Cybersecurity | — | Remote | Mar 2024 | Older |
| SU-0430 | AI workflow automation for insurance agencies with 10K+ monthly revenue seeks a CTO or CEO co-founderTechnical co-founder / CTO, CEO & business · San Francisco, United States | AI, Fintech · Paying customers | — | On site | Feb 2024 | Older |
| SU-0429 | Idea-stage edtech platform for startup and neuroscience courses seeks a CTO co-founder on a 50-50 splitTechnical co-founder / CTO · Location not stated | Education · Idea | — | — | Feb 2024 | Older |
| SU-0008 | Device add-on that masks RF fingerprints with random noise to resist surveillanceHardware & robotics · Location not stated | Cybersecurity, Hardware, robotics & IoT · Idea | — | — | Feb 2024 | Older |
| SU-0492 | AI news platform to cut through misinformation and bias seeks a product-minded co-founder/CTOTechnical co-founder / CTO, AI & machine learning, Product · Location not stated | AI, Media & creators | Full-time | — | Jan 2024 | Older |
| SU-0007 | AI language-learning app for English learners seeks a partner who knows the language-learning businessIndustry expert · Location not stated | AI, Education | — | — | Jan 2024 | Older |
| SU-0338 | Scheme and GPT tooling projects (autograd, code completion, assembly-to-source) seek co-foundersOpen role · Location not stated | AI, Developer tools | — | — | Jan 2024 | Older |
| SU-0337 | Low-cost fiber ISP with per-home switching, veteran ISP founder seeks a co-founderOpen role · Location not stated | Consumer & social · Idea | — | — | Jan 2024 | Older |
| SU-0336 | Search engine for saved bookmarks across social platforms seeks co-founders in MumbaiOpen role · Mumbai, India | Consumer & social | — | — | Jan 2024 | Older |
| SU-0335 | Writing company focused on horror novels seeks a co-founderOpen role · Location not stated | Media & creators | — | — | Jan 2024 | Older |
| SU-0334 | Low-cost hybrid tower and fiber consumer ISP, founder seeks a partnerOpen role · Location not stated | Consumer & social · Idea | — | — | Jan 2024 | Older |
| SU-0005 | Bootstrapped SaaS founder with low seven-figure revenue seeks an in-person co-founder for new ideasTechnical co-founder / CTO, CEO & business · New Jersey, United States | SaaS & B2B software · Paying customers | — | On site | Jan 2024 | Older |
| SU-0004 | Technical founder seeks a Board Certified Behavior Analyst as co-founderIndustry expert · Location not stated | Health | — | — | Jan 2024 | Older |
| SU-0003 | Low-cost 3D ultrasonic sonar sensor as lidar alternative seeks technical partner who can also handle business tasksTechnical co-founder / CTO, CEO & business · France | Hardware, robotics & IoT, Deep tech · Prototype | — | — | Jan 2024 | Older |
| SU-0002 | The startup, a Docker Swarm GUI, seeks a partner for marketing and product visionMarketing & growth, Product · Location not stated | Developer tools, SaaS & B2B software | — | — | Jan 2024 | Older |
| SU-0333 | Social platform for AI-assisted spoken-word creations seeks a technical co-founder in San FranciscoTechnical co-founder / CTO · San Francisco, California, United States | AI, Media & creators · Prototype | Full-time | On site | Jan 2024 | Older |
| SU-0332 | White-label sustainability management SaaS for the public sector seeks a software engineer co-founderTechnical co-founder / CTO · Münster, Germany | SaaS & B2B software, Climate & energy, Legal & public sector · Funded | — | Remote | Jan 2024 | Older |
| SU-0491 | Enterprise AI SaaS prototype with committed beta customers seeks a technical co-founderTechnical co-founder / CTO · Location not stated | SaaS & B2B software, AI · Live product or beta | — | — | Jan 2024 | Older |
| SU-0001 | Pre-launch Bubble app seeks a Bubble co-founder, with investor or freelancer as fallbackTechnical co-founder / CTO · Location not stated | Consumer & social · Prototype | Part-time | — | Jan 2024 | Older |
| SU-0490 | Accelerator-backed LLM observability startup seeks a co-founder/CTOTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Developer tools · Funded | — | — | Jan 2024 | Older |
| SU-0526 | Point-of-sale with loss control for small bars and restaurants seeks full-stack technical co-foundersTechnical co-founder / CTO · Location not stated | SaaS & B2B software, Food & agriculture · Idea | — | — | — | Undated |
| SU-0525 | Workout-partner finder app, live as a PWA, seeks a long-term technical co-founderTechnical co-founder / CTO, Mobile & apps · Utrecht, Netherlands | Consumer & social, Health · Live product or beta | Equity only | Hybrid | — | Undated |
| SU-0524 | Demand-led marketplace in development seeks a part-time commercial and fundraising co-founderCEO & business, Finance / CFO, Sales & partnerships · Location not stated | Marketplaces, Commerce & retail · Prototype | Part-time · Equity only | Remote | — | Undated |
| SU-0523 | Done-for-you SaaS visibility service seeks a developer or non-technical co-founderTechnical co-founder / CTO, Marketing & growth · Location not stated | SaaS & B2B software, Media & creators | Flexible | Remote | — | Undated |
| SU-0522 | Stealth crypto trading-infrastructure startup built on order-book data seeks a non-technical co-founderCEO & business, Finance / CFO · Location not stated | Fintech, Crypto & web3 · Prototype | Equity only | Remote | — | Undated |
| SU-0521 | Urban innovation agency in Edinburgh seeks a communications and marketing (CMO) co-founderMarketing & growth, CEO & business · Edinburgh, United Kingdom | Climate & energy, Real estate & construction | Equity only | Hybrid | — | Undated |
| SU-0520 | AI scheduler and task manager for ADHD users seeks a go-to-market and growth co-founderMarketing & growth, Sales & partnerships, Finance / CFO · Belgium | SaaS & B2B software, AI, Consumer & social · Live product or beta | Full-time · Equity only | Remote | — | Undated |
| SU-0519 | Resume-feedback product for software engineers seeks a non-technical co-founderCEO & business · Location not stated | HR & future of work, Consumer & social | Flexible | Remote | — | Undated |
| SU-0518 | Privacy infrastructure for AI and API apps seeks a sales and go-to-market co-founderSales & partnerships, Marketing & growth, CEO & business · Location not stated | Cybersecurity, AI, SaaS & B2B software · Live product or beta | Equity only | Remote | — | Undated |
| SU-0517 | Founder of an AI pharma patent-research tool seeks a technical co-founder for a new companyTechnical co-founder / CTO · Location not stated | Deep tech | Equity only | Remote | — | Undated |
| SU-0516 | Healthcare talent marketplace for nurses and caregivers in Colombia seeks a growth and B2B sales co-founderMarketing & growth, Sales & partnerships · Colombia | Health, Marketplaces · Live product or beta | Equity only | Remote | — | Undated |
| SU-0515 | Profitable route-planning tool for service businesses seeks a product and design co-founderProduct, Design & UX, Marketing & growth · Location not stated | SaaS & B2B software, Mobility & logistics · Paying customers | Equity only | Remote | — | Undated |
| SU-0514 | Simulation engine predicting where a hardware team's next factory build will fail seeks a sim-to-real co-founderHardware & robotics, Science & R&D · Location not stated | Hardware, robotics & IoT, Deep tech · Prototype | — | — | — | Undated |
| SU-0513 | Open-source middleware for measuring whether AI acts honestly on a user's behalf seeks a co-founder and grant fundingOpen role · Location not stated | AI, Cybersecurity · Prototype | — | — | — | Undated |
| SU-0512 | Music discovery concept that maps tracks by energy vectors instead of genre seeks a technical co-founderTechnical co-founder / CTO · Location not stated | Media & creators, Consumer & social · Idea | Equity only | — | — | Undated |
| SU-0511 | AI orthopedic bed concept that adapts shape and firmness to medical data seeks engineering co-foundersHardware & robotics, Technical co-founder / CTO · Israel | Health, Hardware, robotics & IoT · Idea | Equity only | — | — | Undated |
| SU-0510 | Hackathon-born tool that turns screen-share demos into AI-tutored skills seeks co-foundersOpen role · Location not stated | Education, AI · Prototype | — | — | — | Undated |
| SU-0509 | AI assistant for online community admins, at concierge-MVP stage in Kazakhstan, seeks a technical co-founder and teamTechnical co-founder / CTO, AI & machine learning, Marketing & growth · Astana, Kazakhstan | AI, SaaS & B2B software · Live product or beta | — | — | — | Undated |
| SU-0508 | AI career-discovery platform for Indian school students, live and solo-run, seeks an ML/AI or edtech co-founderAI & machine learning, Industry expert · Bangalore, India | Education, AI · Live product or beta | — | — | — | Undated |
| SU-0507 | Cross-platform sandboxed app environment in Rust and Wren seeks a marketing co-founderMarketing & growth · Location not stated | Developer tools, Consumer & social · Live product or beta | — | — | — | Undated |
| SU-0504 | Planned quantum-AI operating system for smart devices seeks a co-founder for scaling and leadershipCEO & business · Location not stated | Deep tech, Hardware, robotics & IoT, AI · Idea | — | — | — | Undated |
| SU-0502 | Early AI agent that turns instructions into completed digital tasks seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, SaaS & B2B software · Prototype | — | — | — | Undated |
| SU-0501 | Phygital attention-measurement and ad-retargeting system seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | Media & creators, AI · Prototype | — | — | — | Undated |
| SU-0500 | Offline AI knowledge assistant for ship crews (working proof of concept) seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Mobility & logistics · Prototype | — | — | — | Undated |
| SU-0499 | WhatsApp-based rotating savings circles earning DeFi yield for Latin America seeks a Solana/Rust technical co-founderTechnical co-founder / CTO, Blockchain & web3 · Location not stated | Fintech, Crypto & web3 · Live product or beta | — | — | — | Undated |
| SU-0498 | Smart-mirror virtual try-on for stores (early prototype) seeks a technical co-founder in vision or hardwareTechnical co-founder / CTO, Hardware & robotics · Location not stated | Commerce & retail, Hardware, robotics & IoT, AI · Prototype | — | — | — | Undated |
| SU-0497 | Infinite-canvas LLM interface where messages are wired nodes seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Developer tools · Prototype | — | — | — | Undated |
| SU-0496 | Human-approval gateway for AI-agent machine payments (hackathon proof of concept) seeks a security-architect co-founderTechnical co-founder / CTO · Location not stated | Cybersecurity, Fintech, AI · Prototype | — | — | — | Undated |
| SU-0495 | Patent-pending AI that diagnoses real-world problems from photos and guides repairs seeks a technical co-founderAI & machine learning, Technical co-founder / CTO · Location not stated | AI, Consumer & social · Idea | — | — | — | Undated |
| SU-0494 | Tutor-first EdTech MVP for online language lessons seeks a technical co-founderTechnical co-founder / CTO · Location not stated | Education, Marketplaces · Idea | — | — | — | Undated |
| SU-0493 | Sensor-data platform for factory safety and elevator maintenance in China seeks a technical co-founderTechnical co-founder / CTO, Hardware & robotics, AI & machine learning · Shanghai, China | Hardware, robotics & IoT, AI · Idea | — | Hybrid | — | Undated |
| SU-0489 | AI-first HR automation startup seeks a CTO / technical co-founder for 20-30% equityTechnical co-founder / CTO · United States | AI, HR & future of work, SaaS & B2B software | Equity only | Remote | — | Undated |
| SU-0488 | Voice-controlled desktop workflow assistant seeks a full-time CTO / technical co-founderTechnical co-founder / CTO · Location not stated | AI, SaaS & B2B software · Prototype | Full-time · Equity only | Remote | — | Undated |
| SU-0487 | QR menu and ordering SaaS for restaurants and hotels seeks a technical or growth co-founderTechnical co-founder / CTO, Sales & partnerships · United Kingdom | SaaS & B2B software, Food & agriculture · Paying customers | Equity only | Remote | — | Undated |
| SU-0486 | Codebase-understanding tool seeks a non-technical co-founder for marketing, 50% equityMarketing & growth, CEO & business · United States | Developer tools | Equity only | Remote | — | Undated |
| SU-0485 | AI and robotics healthcare venture seeks a full-time CTO / technical co-founderTechnical co-founder / CTO, AI & machine learning, Hardware & robotics · Location not stated | Health, AI, Hardware, robotics & IoT | Full-time · Equity only | Hybrid | — | Undated |
| SU-0484 | AI operating system for movement studios seeks a full-time CTO / technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, SaaS & B2B software, Consumer & social · Paying customers | Full-time · Equity only | Hybrid | — | Undated |
| SU-0483 | Cryptographic fiat-deposit verification for crypto exchanges seeks a cryptography-strong technical co-founderTechnical co-founder / CTO · Toronto, Canada | Fintech, Crypto & web3, Cybersecurity · Prototype | — | — | — | Undated |
| SU-0482 | Digital patient record platform with a UI-first MVP and waitlist seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | Health, SaaS & B2B software · Live product or beta | — | — | — | Undated |
| SU-0481 | Open-source verified-work marketplace on Base for AI agents seeks a Solidity CTO co-founderTechnical co-founder / CTO, Blockchain & web3 · Canton de Vaud, Switzerland | Crypto & web3, Marketplaces · Live product or beta | Flexible · Equity only | — | — | Undated |
| SU-0480 | Low-cost radar-camera-AI module to detect small FPV drones seeks a technical co-founderHardware & robotics, AI & machine learning · Berlin-Brandenburg, Germany | Hardware, robotics & IoT, Deep tech · Idea | — | — | — | Undated |
| SU-0479 | Open-source accountability and scoring layer for autonomous trading agents seeks a Solidity technical co-founderTechnical co-founder / CTO, Blockchain & web3 · Location not stated | Crypto & web3, Fintech, AI · Live product or beta | — | — | — | Undated |
| SU-0478 | Agentic GRC layer for fintechs and banks seeks a technical co-founder (CTO / AI engineer)Technical co-founder / CTO, AI & machine learning · Amman, Jordan | Fintech, AI · Prototype | — | — | — | Undated |
| SU-0475 | Real-time fraud-scoring API for small businesses in free beta seeks a 50/50 technical co-founderTechnical co-founder / CTO · Location not stated | Fintech, Cybersecurity · Live product or beta | — | — | — | Undated |
| SU-0471 | Accent-aware live captions for cross-border English calls (clickable prototype) seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Chennai, India | AI, SaaS & B2B software · Prototype | — | — | — | Undated |
| SU-0470 | Snapchat-lens digital wardrobe feature (frontend prototype) seeks a technical co-founder or collaboratorTechnical co-founder / CTO, AI & machine learning · Location not stated | Consumer & social, Media & creators · Prototype | — | — | — | Undated |
| SU-0469 | Voice-first social platform in early stage seeks an experienced technical co-founderTechnical co-founder / CTO, Mobile & apps · Location not stated | Consumer & social, Media & creators · Prototype | — | — | — | Undated |
| SU-0468 | UK AI-native cyber defence startup in early development seeks a security-engineering technical co-founderTechnical co-founder / CTO · United Kingdom | Cybersecurity, AI · Prototype | — | — | — | Undated |
| SU-0466 | Micro-bounty platform for everyday tech problems seeks a lead full-stack technical co-founderTechnical co-founder / CTO · Location not stated | Marketplaces, HR & future of work · Idea | — | — | — | Undated |
| SU-0465 | AI-native operations platform for private 5G networks (interactive prototype) seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, SaaS & B2B software · Prototype | Equity only | — | — | Undated |
| SU-0463 | Concept for a multi-agent robotic rehabilitation system seeks a technical co-founder or lead engineersHardware & robotics, AI & machine learning · Location not stated | Health, Hardware, robotics & IoT · Idea | — | — | — | Undated |
| SU-0460 | Permissioned ledger for tamper-resistant 911 event records seeks an equity-based technical co-founderTechnical co-founder / CTO · Location not stated | Legal & public sector, Cybersecurity · Idea | Equity only | — | — | Undated |
| SU-0458 | Open protocol for verifiable AI-agent purchase authorization seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Fintech · Prototype | — | — | — | Undated |
| SU-0457 | Daily execution layer for insurance agents, in private beta, seeks an equity-based technical co-founderTechnical co-founder / CTO · Location not stated | SaaS & B2B software, Fintech · Prototype | Equity only | — | — | Undated |
| SU-0446 | AI digital waiter concept for restaurants seeks a technical co-founder or developerTechnical co-founder / CTO, AI & machine learning · Location not stated | Food & agriculture, AI · Idea | — | — | — | Undated |
| SU-0428 | Early-stage connectivity/infrastructure startup in Stockholm seeks a co-founder CTOTechnical co-founder / CTO · Stockholm County, Sweden | Hardware, robotics & IoT | Full-time | — | — | Undated |
| SU-0427 | Venture-studio football fan-engagement platform in Riyadh seeks a partnerships co-founderSales & partnerships, Operations / COO · Riyadh, Saudi Arabia | Consumer & social, Media & creators | — | — | — | Undated |
| SU-0426 | Riyadh retail-AI analytics startup from a venture studio seeks a commercial co-founderSales & partnerships, Marketing & growth · Riyadh, Saudi Arabia | AI, Commerce & retail | — | — | — | Undated |
| SU-0424 | IT services firm adds a Co-Founder to lead B2B sales and go-to-market for productized CRM/ERP servicesSales & partnerships, CEO & business · Islamabad, Pakistan | SaaS & B2B software · Paying customers | Equity and salary | Hybrid | — | Undated |
| SU-0423 | African personal-finance app seeks an equity-only co-founder and CEOCEO & business · Location not stated | Fintech, Consumer & social · Live product or beta | Full-time · Equity only | Remote | — | Undated |
| SU-0422 | Recruitment-tech startup in Ireland seeks a full-stack technical co-founder with 50% equityTechnical co-founder / CTO · Ireland | HR & future of work, SaaS & B2B software · Prototype | Flexible · Equity only | Hybrid | — | Undated |
| SU-0421 | Phone-native blockchain built in Termux seeks a co-founderOpen role · Location not stated | Crypto & web3 | — | — | — | Undated |
| SU-0420 | Free bilingual cognitive-training platform with 42 games seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | Consumer & social, Health · Live product or beta | — | — | — | Undated |
| SU-0419 | Onchain structured-products protocol (dual investment on tokenized stocks) seeks a commercial co-founderSales & partnerships, Marketing & growth · Location not stated | Fintech, Crypto & web3 · Live product or beta | — | — | — | Undated |
| SU-0418 | Early cyber-risk quantification platform seeks a co-founder to build the company from the ground upOpen role · Location not stated | Cybersecurity, SaaS & B2B software · Prototype | — | — | — | Undated |
| SU-0416 | Local-first AI software engineer seeks a 50/50 technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Developer tools | — | — | — | Undated |
| SU-0415 | Trust and verification layer for AI, software and hardware seeks a technical CTO co-founderTechnical co-founder / CTO · Location not stated | AI, Cybersecurity | — | — | — | Undated |
| SU-0414 | Time-banking marketplace (1 hour = 1 credit) MVP seeks a growth co-founderMarketing & growth · Location not stated | Marketplaces, Consumer & social · Live product or beta | — | — | — | Undated |
| SU-0413 | Agentic music battles on Base L2 seek a technical co-founderTechnical co-founder / CTO, Blockchain & web3 · Location not stated | Crypto & web3, Media & creators | — | — | — | Undated |
| SU-0412 | AI API marketplace with a buy/sell margin model seeks co-foundersOpen role · Location not stated | AI, Marketplaces | — | — | — | Undated |
| SU-0410 | AI multi-track transcription tool for musicians seeks a tech co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Media & creators · Live product or beta | — | — | — | Undated |
| SU-0409 | Real-time fraud detection system with 50ms inference seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | Fintech, Cybersecurity, AI | — | — | — | Undated |
| SU-0407 | Early LLM-based AI startup seeks a technical co-founder to lead end-to-end developmentTechnical co-founder / CTO, AI & machine learning · Location not stated | AI · Idea | — | — | — | Undated |
| SU-0406 | Web3 non-custodial wallets and stablecoin cards for freelancers seek a technical co-founder (CTO)Technical co-founder / CTO, Blockchain & web3 · Location not stated | Fintech, Crypto & web3 | — | — | — | Undated |
| SU-0400 | AI assistant for civil engineering AutoCAD work seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, SaaS & B2B software | — | — | — | Undated |
| SU-0396 | AI companion app prototype built in Google AI Studio seeks a hacker co-founderTechnical co-founder / CTO · Location not stated | AI, Consumer & social · Prototype | — | — | — | Undated |
| SU-0388 | AI project seeks a full-stack developer co-founderTechnical co-founder / CTO · Location not stated | AI | — | — | — | Undated |
| SU-0385 | B2B SaaS venture in SAP and AI seeks a technical co-founder (CTO)Technical co-founder / CTO, AI & machine learning · Location not stated | SaaS & B2B software, AI | — | — | — | Undated |
| SU-0370 | Poetry app project looks for a Flutter partner to build it togetherMobile & apps · Location not stated | Consumer & social | — | — | — | Undated |
| SU-0369 | Quant-trading team with capital and market in place seeks a full-stack technical partner / CTOTechnical co-founder / CTO · Location not stated | Fintech | — | — | — | Undated |
| SU-0368 | Shenzhen team with ample funding seeks a CTO to bring edge AI and IoT into a bio-factoryTechnical co-founder / CTO, Hardware & robotics · Shenzhen, China | Biotech & life sciences, Hardware, robotics & IoT, AI | — | — | — | Undated |
| SU-0367 | Experiential-tech studio in Riyadh seeks a co-founder with Saudi events-industry networkSales & partnerships, Operations / COO · Riyadh, Saudi Arabia | Media & creators, Hardware, robotics & IoT | Full-time · Equity and salary | On site | — | Undated |
| SU-0331 | AI-native property-management platform from a startup studio seeks a CTO and co-founder in BerlinTechnical co-founder / CTO, AI & machine learning · Berlin, Germany | Real estate & construction, AI, SaaS & B2B software · Funded | Full-time · Equity and salary | — | — | Undated |
| SU-0330 | Gen Z food-discovery app with a live MVP seeks a founding CTO and co-founder in the NetherlandsTechnical co-founder / CTO, Mobile & apps, AI & machine learning · Groningen, Netherlands | Food & agriculture, Consumer & social, AI · Live product or beta | Full-time · Equity and salary | — | — | Undated |
| SU-0329 | Agentic AI platform for small law firms with early ARR seeks a CTO and co-founder in BarcelonaTechnical co-founder / CTO, AI & machine learning · Barcelona, Spain | Legal & public sector, AI, SaaS & B2B software · Paying customers | Full-time | Hybrid | — | Undated |
| SU-0328 | AI exam-preparation platform with paying customers seeks a CTO and co-founder in BarcelonaTechnical co-founder / CTO · Barcelona, Spain | Education, AI · Paying customers | Full-time | — | — | Undated |
| SU-0327 | Neutral AI consumer-agent startup (mobile UI agent) in Hengqin-Macau area seeks a CTO for 20-25% equityTechnical co-founder / CTO, AI & machine learning · Hengqin, China | AI, Consumer & social | — | — | — | Undated |
| SU-0326 | Macau-backed AI agent startup in Hengqin seeks technical co-founder offering 16% equityTechnical co-founder / CTO, AI & machine learning · Hengqin, China | AI | Equity only | — | — | Undated |
| SU-0325 | Climate-tech water-technology company in Sharjah seeks a hands-on Co-Founder and CTOTechnical co-founder / CTO, Hardware & robotics, Science & R&D · Sharjah, United Arab Emirates | Climate & energy, Hardware, robotics & IoT | Full-time · Equity only | — | — | Undated |
| SU-0324 | Founder with a built MVP seeks technical co-founders with payments-infrastructure and mobile experienceTechnical co-founder / CTO, Mobile & apps · Location not stated | Fintech · Live product or beta | — | — | — | Undated |
| SU-0323 | Ex-Twilio founders with an MVP and angel/VC funding seek a co-founder/CTO with distributed-systems skillsTechnical co-founder / CTO · Location not stated | Funded | — | — | — | Undated |
| SU-0322 | Flexible-workspace and community membership startup preparing a Manchester pilot seeks a hands-on co-founderProduct, Operations / COO · Manchester, United Kingdom | Consumer & social, HR & future of work · Idea | Full-time | — | — | Undated |
| SU-0321 | Quantum-inspired fraud-detection venture for banks and payment processors seeks a CTO co-founder in SingaporeTechnical co-founder / CTO, Science & R&D, AI & machine learning · Singapore | Fintech, Cybersecurity, Deep tech · Idea | Equity only | Hybrid | — | Undated |
| SU-0320 | Studio venture building workflow-intelligence software for municipal approvals seeks a CTO co-founderTechnical co-founder / CTO, AI & machine learning · Seattle, Washington, United States | Real estate & construction, AI, SaaS & B2B software · Idea | — | — | — | Undated |
| SU-0319 | Studio venture building an AI returns and reverse-logistics orchestration layer seeks a CEO co-founderCEO & business · Boston, Massachusetts, United States | Commerce & retail, AI, SaaS & B2B software · Idea | Equity only | — | — | Undated |
| SU-0318 | End-to-end business and payments platform for hospitality seeks a CTO and technical co-founder in MelbourneTechnical co-founder / CTO · Melbourne, Victoria, Australia | Fintech, SaaS & B2B software · Prototype | Full-time · Equity and salary | Hybrid | — | Undated |
| SU-0317 | AI platform creating digital employee avatars for onboarding and training seeks a hands-on technical co-founderTechnical co-founder / CTO, AI & machine learning · London, United Kingdom | AI, HR & future of work, SaaS & B2B software · Prototype | Part-time · Equity only | Remote | — | Undated |
| SU-0316 | AI competitive-intelligence platform for B2B SaaS seeks a martech-savvy co-founder for go-to-marketCEO & business, Marketing & growth · Berlin, Germany | SaaS & B2B software, AI · Live product or beta | Equity only | Remote | — | Undated |
| SU-0315 | Student-founded venture aiming to modernise agricultural commodity trading and transport seeks a technical co-founderTechnical co-founder / CTO, Product · Stellenbosch, South Africa | Marketplaces, Mobility & logistics · Idea | Flexible · Equity only | On site | — | Undated |
| SU-0314 | Bootstrapped legal-workflow SaaS with paying customers seeks a CTO / technical co-founder in South AfricaTechnical co-founder / CTO, AI & machine learning · South Africa | Legal & public sector, SaaS & B2B software, AI · Paying customers | Full-time · Equity and salary | Hybrid | — | Undated |
| SU-0313 | Workflow web app for structured idea generation and management seeks a part-time technical co-founderTechnical co-founder / CTO · Johannesburg, South Africa | SaaS & B2B software | Part-time | Remote | — | Undated |
| SU-0312 | API-first B2B consent-management and data-licensing platform seeks a CTO and technical co-founder in Cape TownTechnical co-founder / CTO, Data & infrastructure · Cape Town, South Africa | Cybersecurity, SaaS & B2B software, Legal & public sector | Flexible · Equity and salary | Hybrid | — | Undated |
| SU-0311 | White-label SaaS for out-of-home ad inventory seeks an operations and commercialisation co-founder in JohannesburgSales & partnerships, Operations / COO · Johannesburg, South Africa | Media & creators, SaaS & B2B software · Prototype | Full-time | On site | — | Undated |
| SU-0310 | Blockchain verification layer proving a digital file is authentic and unaltered seeks a Web3 technical co-founderTechnical co-founder / CTO, Blockchain & web3 · Cape Town, South Africa | Crypto & web3, Cybersecurity · Live product or beta | Full-time · Equity and salary | On site | — | Undated |
| SU-0309 | Visual-commerce platform that turns images into shoppable multi-merchant results seeks a founding CTO co-founderTechnical co-founder / CTO, AI & machine learning · Singapore | Commerce & retail, AI | Full-time · Equity only | Hybrid | — | Undated |
| SU-0308 | Furniture and appliance rental platform in Singapore seeks a technology or finance co-founderTechnical co-founder / CTO, Finance / CFO · Singapore | Commerce & retail, Marketplaces | Full-time · Equity only | On site | — | Undated |
| SU-0307 | Hybrid quantum-classical optimisation solvers for logistics; seeks a technical co-founder in WellingtonTechnical co-founder / CTO, Science & R&D, Data & infrastructure · Wellington, New Zealand | Deep tech, SaaS & B2B software · Idea | Full-time · Equity only | On site | — | Undated |
| SU-0306 | Solo founder building a fair, transparent betting platform seeks a technical co-founder in LondonTechnical co-founder / CTO · London, United Kingdom | Gaming, Fintech · Idea | Full-time | On site | — | Undated |
| SU-0305 | AI-powered learning platform with 200+ paying subscribers seeks a part-time technical co-founderTechnical co-founder / CTO, AI & machine learning · United Kingdom | Education, AI · Paying customers | Part-time | On site | — | Undated |
| SU-0304 | Content-intelligence platform for communication teams seeks an equity-only technical co-founder to lead the MVPTechnical co-founder / CTO, AI & machine learning · London, United Kingdom | AI, Media & creators, SaaS & B2B software · Idea | Full-time · Equity only | Remote | — | Undated |
| SU-0303 | Bootstrapped fintech platform for private-market deal-making in investment banking seeks a Co-Founder and CTOTechnical co-founder / CTO · Leeds, United Kingdom | Fintech, AI, SaaS & B2B software · Idea | Full-time · Equity and salary | Remote | — | Undated |
| SU-0302 | UK venture builder recruiting co-founders for science-backed bio-materials and sustainable-construction venturesCEO & business, Science & R&D, Operations / COO · Leeds, United Kingdom | Climate & energy, Deep tech, Commerce & retail · Prototype | Full-time · Equity only | Remote | — | Undated |
| SU-0301 | Sustainability platform for furniture brands seeks a France-based CTO co-founderTechnical co-founder / CTO · Paris, France | Climate & energy, SaaS & B2B software · Idea | Equity only | Remote | — | Undated |
| SU-0300 | Venture-studio-backed agentic AI legal-workflow startup seeks a Co-Founder and CTO in MadridTechnical co-founder / CTO, AI & machine learning · Madrid, Spain | AI, Legal & public sector · Live product or beta | Full-time · Equity and salary | Hybrid | — | Undated |
| SU-0299 | Stealth AI healthcare-automation venture in Berlin seeks a tech/product co-founder, backed by business angelsTechnical co-founder / CTO, Product, AI & machine learning · Berlin, Germany | Health, AI · Idea | Full-time · Salary | On site | — | Undated |
| SU-0298 | AI wealth-intelligence platform for family offices seeks a Tech Co-founder / CTO in ZurichTechnical co-founder / CTO, AI & machine learning · Zürich, Switzerland | Fintech, AI · Live product or beta | Full-time · Equity and salary | On site | — | Undated |
| SU-0297 | Multi-agent AI platform for finance and investment work seeks a CTO / co-founder (equity and salary)Technical co-founder / CTO, AI & machine learning · Location not stated | Fintech, AI, SaaS & B2B software | Full-time · Equity and salary | Remote | — | Undated |
| SU-0296 | Laser-photonics spinout from an Austrian research institute seeks a CEO co-founder in ViennaCEO & business · Wien, Austria | Deep tech, Hardware, robotics & IoT · Prototype | Full-time · Equity and salary | On site | — | Undated |
| SU-0295 | AI and blockchain platform for GCC construction delivery with smart payments seeks a technical co-founder / CTOTechnical co-founder / CTO, Blockchain & web3 · Dubai, United Arab Emirates | Real estate & construction, Crypto & web3, AI · Prototype | Flexible · Equity only | Hybrid | — | Undated |
| SU-0294 | Tech-for-good app that lets people donate to charity without raising their spending seeks a technical co-founderTechnical co-founder / CTO, Mobile & apps · Location not stated | Social impact, Fintech, Consumer & social · Idea | Equity only | — | — | Undated |
| SU-0293 | AI recruitment platform matching candidates to plain-English requirements seeks an equity-only CTO co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | HR & future of work, AI · Idea | Flexible · Equity only | Remote | — | Undated |
| SU-0292 | Audio-first personal-development platform with a live product seeks a commercial and growth co-founderMarketing & growth, Sales & partnerships, Finance / CFO · London, United Kingdom | Education, Consumer & social, Media & creators · Live product or beta | — | Remote | — | Undated |
| SU-0291 | Pre-MVP courier dispatch platform seeks a hands-on technical co-founder / CTO in LondonTechnical co-founder / CTO · London, United Kingdom | Mobility & logistics, SaaS & B2B software · Idea | Equity only | — | — | Undated |
| SU-0290 | UK construction-labour marketplace connecting tradespeople directly with contractors, seeking a technical co-founderTechnical co-founder / CTO · England, United Kingdom | Marketplaces, HR & future of work | Part-time · Equity only | — | — | Undated |
| SU-0289 | People-OS platform for hospitality teams, with pilots underway, seeks a hands-on technical co-founderTechnical co-founder / CTO, AI & machine learning · London, United Kingdom | HR & future of work, SaaS & B2B software, AI · Live product or beta | Flexible · Equity only | Remote | — | Undated |
| SU-0288 | AI-enabled healthcare management platform for practitioners seeks a technical co-founder / CTOTechnical co-founder / CTO, AI & machine learning · United Kingdom | Health, AI, SaaS & B2B software | Equity and salary | — | — | Undated |
| SU-0287 | Wine investment and digital cellar platform with AI tools and blockchain traceabilityTechnical co-founder / CTO, AI & machine learning, Blockchain & web3 · London, United Kingdom | Commerce & retail, Fintech, AI · Idea | Equity only | — | — | Undated |
| SU-0286 | Device-leasing subscription platform seeks a finance co-founder who can raise moneyFinance / CFO · England, United Kingdom | Fintech, Consumer & social, Commerce & retail · Idea | Equity only | — | — | Undated |
| SU-0285 | AI agents that find underpriced designer clothing on resale marketplaces; early revenue, seeks CTO co-founderTechnical co-founder / CTO, AI & machine learning · London, United Kingdom | AI, Marketplaces, Consumer & social · Paying customers | Full-time · Equity only | — | — | Undated |
| SU-0284 | Stealth B2B AI engineering software venture seeking a Europe-based technical co-founder / CTOTechnical co-founder / CTO, Data & infrastructure · London, United Kingdom | AI, Deep tech, SaaS & B2B software · Idea | — | — | — | Undated |
| SU-0283 | Stealth AI-native wealth platform for professionals starting in Dubai seeks a CTO and co-founderTechnical co-founder / CTO, Data & infrastructure · Dubai, United Arab Emirates | Fintech, AI | Equity and salary | — | — | Undated |
| SU-0282 | AI-agent startup with a validated first contract looking for a technical co-founder for 50% equityTechnical co-founder / CTO, AI & machine learning · London, United Kingdom | AI · Prototype | Equity only | — | — | Undated |
| SU-0281 | Automated socio-economic impact reporting for funders, seeking a CTO co-founderTechnical co-founder / CTO, AI & machine learning · London, United Kingdom | SaaS & B2B software, Social impact, AI | — | — | — | Undated |
| SU-0280 | Bootstrapped sales-call intelligence startup with paying customers seeks a CTO co-founderTechnical co-founder / CTO, AI & machine learning · United Kingdom | SaaS & B2B software, AI · Paying customers | Equity and salary | Remote | — | Undated |
| SU-0279 | Creator-economy social discovery app seeks a CTO / technical co-founder with an equal one-third equity shareTechnical co-founder / CTO, Mobile & apps, AI & machine learning · London, United Kingdom | Consumer & social, Media & creators, AI · Prototype | Full-time · Equity and salary | — | — | Undated |
| SU-0278 | AI-assisted hiring platform unifying jobs, candidates and leads, seeking an equity-only technical co-founderTechnical co-founder / CTO · United Kingdom | HR & future of work, AI, SaaS & B2B software | Flexible · Equity only | Remote | — | Undated |
| SU-0277 | AI platform that guides founders from idea to scale, with startup profiles, assessments and investor insightsTechnical co-founder / CTO · London, United Kingdom | AI, SaaS & B2B software | Equity only | Hybrid | — | Undated |
| SU-0276 | AI due-diligence platform for VC and PE firms seeks a business-development and partnerships co-founderSales & partnerships · London, United Kingdom | Fintech, AI, SaaS & B2B software | — | — | — | Undated |
| SU-0275 | Construction-site software with an AI assistant for site managers, seeking a second technical co-founderTechnical co-founder / CTO, AI & machine learning, Mobile & apps · Bristol, United Kingdom | SaaS & B2B software, AI · Live product or beta | Full-time | — | — | Undated |
| SU-0274 | Social identity layer for AI agents: a permissioned knowledge graph of a person that AI can queryTechnical co-founder / CTO, AI & machine learning · London, United Kingdom | AI, Consumer & social, SaaS & B2B software · Funded | Full-time · Equity and salary | — | — | Undated |
| SU-0273 | Pre-formation battery-materials manufacturing venture in London seeks a commercial co-founderCEO & business, Sales & partnerships · London, United Kingdom | Climate & energy, Deep tech · Idea | Equity and salary | On site | — | Undated |
| SU-0272 | Mental-health telehealth company seeks a co-founder and COO willing to travel and relocate globallyOperations / COO · New York, United States | Health, AI | Equity and salary | — | — | Undated |
| SU-0271 | Stealth smart-apparel startup with sensor-embedded fabrics seeks a technical co-founder and CTOTechnical co-founder / CTO, Hardware & robotics · Vancouver, British Columbia, Canada | Hardware, robotics & IoT, Consumer & social · Prototype | Full-time · Equity only | Hybrid | — | Undated |
| SU-0270 | Toronto food and grocery app for African stores and restaurants seeks a full-time technical co-founderTechnical co-founder / CTO · Toronto, Ontario, Canada | Food & agriculture, Marketplaces, Commerce & retail · Idea | Full-time | Remote | — | Undated |
| SU-0269 | Ottawa startup building an AI hiring operating system seeks a full-time technical co-founderTechnical co-founder / CTO, AI & machine learning · Ottawa, Ontario, Canada | HR & future of work, AI, SaaS & B2B software · Idea | Full-time · Equity and salary | Remote | — | Undated |
| SU-0268 | Stealth proptech AI venture from a venture studio in Toronto seeks a CTO co-founderTechnical co-founder / CTO, AI & machine learning · Toronto, Ontario, Canada | Real estate & construction, AI · Idea | Full-time · Equity and salary | Hybrid | — | Undated |
| SU-0267 | Berlin cybersecurity and AI startup building an identity and AI-enforcement platform seeks a technical co-founderTechnical co-founder / CTO, Product, AI & machine learning · Berlin, Germany | Cybersecurity, AI · Funded | — | Hybrid | — | Undated |
| SU-0266 | Stealth mobility platform with AI matching and dynamic pricing seeks a technical co-founder / CTO in BerlinTechnical co-founder / CTO, AI & machine learning, Data & infrastructure · Berlin, Germany | Mobility & logistics, AI, Marketplaces · Paying customers | Equity and salary | — | — | Undated |
| SU-0265 | Generative-AI startup for property and casualty insurance seeks a full-time co-founder and CTO in BostonTechnical co-founder / CTO, AI & machine learning · Boston, Massachusetts, United States | AI, Fintech | Full-time · Equity only | On site | — | Undated |
| SU-0264 | FinTech SaaS showing cross-border investors how ETF domicile and taxes affect returns seeks a commercial co-founderSales & partnerships, CEO & business · Location not stated | Fintech, SaaS & B2B software · Live product or beta | Equity only | Remote | — | Undated |
| SU-0263 | Tool turning part tables into laser-cut DXF files seeks a sales partner and a web developerSales & partnerships, Technical co-founder / CTO · Yekaterinburg, Russia | SaaS & B2B software, Hardware, robotics & IoT · Live product or beta | Equity only | Remote | — | Undated |
| SU-0262 | Freelance marketplace with AI-automated briefs seeks a marketing co-founderMarketing & growth · Location not stated | Marketplaces, HR & future of work, AI · Live product or beta | Equity only | — | — | Undated |
| SU-0261 | Telegram bot automating affiliate income for bloggers seeks marketing and technical partnersMarketing & growth, Technical co-founder / CTO · Location not stated | Media & creators, Commerce & retail · Live product or beta | Equity only | — | — | Undated |
| SU-0260 | CRM and digital platform for car repair shops seeks a technical co-founder / CTO for 20% equityTechnical co-founder / CTO, Mobile & apps · Location not stated | SaaS & B2B software, Mobility & logistics · Prototype | Part-time · Equity only | — | — | Undated |
| SU-0259 | Early-stage B2B platform for plugging AI agents into company workflows seeks a tech co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, SaaS & B2B software | — | — | — | Undated |
| SU-0258 | Local age-verification module for retail self-checkout seeks a CTO / lead developer co-founderTechnical co-founder / CTO, AI & machine learning · Location not stated | AI, Cybersecurity, Commerce & retail · Prototype | Equity only | — | — | Undated |
| SU-0257 | Agency optimizing brands for AI-assistant recommendations builds a core team paid in equity and profit shareMarketing & growth, Technical co-founder / CTO · Location not stated | AI, Commerce & retail · Idea | Flexible · Equity only | Remote | — | Undated |
| SU-0256 | Group-buying wholesale platform seeks a sales business partner with a path to commercial director or CEOSales & partnerships, CEO & business · Location not stated | Marketplaces, Commerce & retail · Paying customers | Flexible | Remote | — | Undated |
| SU-0255 | Stealth renovation marketplace seeks an equity-only Co-Founder and Chief Revenue Officer, Bristol preferredSales & partnerships, Marketing & growth · Bristol, United Kingdom | Real estate & construction, Marketplaces | Equity only | Hybrid | — | Undated |
| SU-0254 | Bootstrapped recruitment-tech startup with a working AI sourcing tool seeks a CTO co-founder in LisbonTechnical co-founder / CTO, AI & machine learning · Lisbon, Portugal | HR & future of work, AI, Marketplaces · Paying customers | Flexible · Equity only | Remote | — | Undated |
| SU-0252 | New niche dating-platform startup in a Nigerian startup collective seeks a web/mobile technical co-founderTechnical co-founder / CTO, Mobile & apps · Nigeria | Consumer & social · Idea | Equity only | Remote | — | Undated |
| SU-0251 | New AI-native cybersecurity platform from an existing security-content company seeks a CTO co-founderTechnical co-founder / CTO · San Francisco, California, United States | Cybersecurity, AI · Idea | — | — | — | Undated |
| SU-0250 | Venture-builder-backed clean-energy startup turning food waste into electricity seeks a commercial co-founderCEO & business, Sales & partnerships, Finance / CFO · London, United Kingdom | Climate & energy, Biotech & life sciences, Deep tech · Idea | Full-time · Equity and salary | Hybrid | — | Undated |
| SU-0249 | AI digital death-planning platform for families and advisers seeks a third co-founder to lead fundraising and productCEO & business, Product, Finance / CFO · United Kingdom | Fintech, Legal & public sector, AI · Paying customers | Flexible · Equity and salary | Remote | — | Undated |
| SU-0248 | Pre-launch platform for UK leaseholders and Right to Manage seeks a technical co-founder to build the MVPTechnical co-founder / CTO · United Kingdom | Real estate & construction, SaaS & B2B software · Idea | — | — | — | Undated |
| SU-0247 | Stealth graph-based modelling SaaS to replace Excel for enterprise planning seeks a founding CTO co-founderTechnical co-founder / CTO, AI & machine learning · Helsinki, Finland | SaaS & B2B software, AI · Funded | — | Remote | — | Undated |
| SU-0246 | Pre-seed stealth venture building AI commercial intelligence for biotech seeks a technical co-founderTechnical co-founder / CTO, AI & machine learning · United States | Biotech & life sciences, AI | — | Remote | — | Undated |
| SU-0245 | New studio-launched fintech venture in Spain seeks a Co-Founder and CTO to build the team from day oneTechnical co-founder / CTO · Spain | Fintech · Idea | Full-time | — | — | Undated |
| SU-0244 | HRMS platform for small and mid-sized businesses seeks an equity-based technical co-founder in BengaluruTechnical co-founder / CTO · Bengaluru, Karnataka, India | HR & future of work, SaaS & B2B software | Full-time · Equity only | — | — | Undated |
| SU-0243 | Denver B2B SaaS for multifamily vendors with Denver traction seeks a hybrid technical co-founderTechnical co-founder / CTO · Denver, Colorado, United States | Real estate & construction, SaaS & B2B software · Live product or beta | Full-time · Equity only | Hybrid | — | Undated |
| SU-0242 | Bootstrapped coaching platform that sponsors free coaching for youth NGOs seeks a technical co-founder in BerlinTechnical co-founder / CTO, AI & machine learning · Berlin, Germany | Education, Social impact, SaaS & B2B software · Prototype | Equity and salary | Hybrid | — | Undated |
| SU-0241 | Early-stage trust-automation platform for software and AI delivery seeks a founding engineer / co-founder CTOTechnical co-founder / CTO · United States | Developer tools, Cybersecurity, AI | — | — | — | Undated |
| SU-0239 | IT and digital innovation house building SaaS products seeks a CTO / co-founder partner in StuttgartTechnical co-founder / CTO · Stuttgart, Germany | SaaS & B2B software, HR & future of work · Live product or beta | Full-time · Equity only | On site | — | Undated |
| SU-0238 | Venture-builder alarm-system startup seeks a co-founder / managing director in BerlinCEO & business, Operations / COO · Berlin, Germany | Cybersecurity, Consumer & social · Paying customers | Equity and salary | — | — | Undated |
| SU-0237 | Supply-chain geopolitical and climate risk platform seeks a third co-founder and CTO, Zurich/remoteTechnical co-founder / CTO, AI & machine learning · Zürich, Switzerland | AI, SaaS & B2B software · Idea | Full-time · Equity only | Hybrid | — | Undated |
| SU-0235 | Pre-revenue startup helping brands appear in generative-AI search seeks an equity-only part-time CTO co-founderTechnical co-founder / CTO · Barcelona, Spain | AI, SaaS & B2B software · Idea | Part-time · Equity only | Remote | — | Undated |
| SU-0234 | B2B platform connecting industrial companies and suppliers seeks a technical co-founder/CTO for equityTechnical co-founder / CTO · München, Germany | Marketplaces, AI · Idea | Equity only | — | — | Undated |
| SU-0231 | Small AI/web agency for SMEs seeks an operational sales co-founder for B2B acquisitionSales & partnerships · Munich, Germany | SaaS & B2B software, AI | Equity only | — | — | Undated |
| SU-0229 | Startup-studio-built AI platform for public tenders seeks a co-founder and head of sales in WarsawSales & partnerships · Warsaw, Poland | AI, Legal & public sector · Idea | Full-time · Equity and salary | On site | — | Undated |
| SU-0228 | Early-stage organisation with several digital projects seeks a full-time CTO co-founder on 15-25% equityTechnical co-founder / CTO · München, Germany | SaaS & B2B software · Idea | Full-time · Equity only | Remote | — | Undated |
| SU-0226 | Privacy-tech startup for digital executive protection seeks a technical co-founder (CTO)Technical co-founder / CTO · Mannheim, Germany | Cybersecurity, SaaS & B2B software · Prototype | Full-time · Equity and salary | Hybrid | — | Undated |
| SU-0225 | Berlin AI startup for business client communication seeks a sales and marketing co-founderSales & partnerships, Marketing & growth · Berlin, Germany | AI, SaaS & B2B software · Live product or beta | Full-time · Equity only | — | — | Undated |
| SU-0222 | Round-up investing app for everyday purchases seeks a third co-founder as CTO in MunichTechnical co-founder / CTO · Munich, Germany | Fintech, Consumer & social · Live product or beta | Full-time · Equity only | — | — | Undated |
| SU-0217 | Meetup-matching platform for students seeks a marketing or sales co-founder in MunichMarketing & growth, Sales & partnerships · Munich, Germany | Consumer & social | — | — | — | Undated |
| SU-0204 | Activity-based social matching app for Munich seeks a CTO / technical co-founderTechnical co-founder / CTO · Munich, Germany | Consumer & social · Prototype | Flexible | Remote | — | Undated |
| SU-0200 | Founder building an automated business-banking and bookkeeping fintech seeks a technical co-founderTechnical co-founder / CTO · Location not stated | Fintech, SaaS & B2B software · Idea | Equity only | — | — | Undated |
| SU-0187 | AI fleet-operations platform for small US trucking fleets seeks a CTO / technical co-founderTechnical co-founder / CTO · Location not stated | SaaS & B2B software, Mobility & logistics, AI · Live product or beta | Full-time | Remote | — | Undated |
| SU-0185 | Vancouver AI adherence platform for GLP-1 and injectable therapies seeks a technical co-founderTechnical co-founder / CTO · Vancouver, British Columbia, Canada | Health, AI | — | Hybrid | — | Undated |
| SU-0184 | Stealth logistics marketplace for premium site services and hauling seeks a technical co-founderTechnical co-founder / CTO · Charleston | Marketplaces · Prototype | Full-time · Equity only | Remote | — | Undated |
| SU-0174 | New wholesale-platform startup in New York looks for a co-founder or CTOTechnical co-founder / CTO · New York, United States | Commerce & retail, Marketplaces | Full-time | Hybrid | — | Undated |
| SU-0172 | Patent-pending restroom-capacity product in Fort Lauderdale seeks an operations and hardware co-founderOperations / COO, Hardware & robotics, Sales & partnerships · Fort Lauderdale, United States | Hardware, robotics & IoT | Full-time · Equity only | Hybrid | — | Undated |
| SU-0170 | New York founder building an AR, AI and gaming social platform seeks AI/ML or Unity co-foundersTechnical co-founder / CTO, AI & machine learning · New York, United States | Gaming, Consumer & social, AI | — | Remote | — | Undated |
| SU-0112 | Personalized children's audio-story platform seeks a CTO in an unpaid founder role for sharesTechnical co-founder / CTO · Munich, Germany | Consumer & social, Media & creators · Idea | Flexible · Equity only | Remote | — | Undated |
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