Operator looking to join a team as co-founder for a YC application
Location not stated
New Posted: September 28, 2026
Young company selling configurable building components and sun protection online, combined with consulting, manufacturing partners and optional installation, with first sales and customers and plans to expand across the DACH region. The solo founder seeks a co-founder or business partner, either contributing know-how and work for a long-term stake or investing; sales, online marketing, e-commerce or trades background wanted.
Summarised in English from the source.
Startup names, websites and source links are not shown here. Details appear as the source states them, summarised in English.
Is this your post? We correct or remove it on request. Write to us
Credits are used once per startup; unlocked details stay in your account.
Profiles in this role from our list. Add them to your intro list, or ask us for a shortlist.
Location not stated
Remote
Based in Israel
Go-to-market · Technical product marketing · Developer relations
Full-time
Location not stated
operations · team leadership
On site
Location not stated
| ID | Startup and place | Industry · stage | Commitment · terms | Work mode | Posted | Freshness |
|---|---|---|---|---|---|---|
| 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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-0217 | Meetup-matching platform for students seeks a marketing or sales co-founder in MunichMarketing & growth, Sales & partnerships · Munich, Germany | Consumer & social | — | — | — | Undated |
| 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-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-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-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-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 |
Startups get a shortlist of people who fit. Future co-founders see who is looking for their role.
Public co-founder searches with role, industry, stage, place and terms, each checked against its source.
Each startup is compared with the co-founder profiles we track: role, skills, region, commitment and industry.
Founders get a shortlist and warm introductions; future co-founders get introduced to startups that fit.
Unlock the startup behind a listing, get weekly alerts for your role and countries, or send us your brief.