Y Combinator Co-founder Matching
YC’s free online platform to help you find your co-founder
Y Combinator Co-founder Matching launched on July 7, 2021 with 642 votes, #11 of 3,502 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 5 years on.
In plain words
Y Combinator's Co-founder Matching is a free online platform designed to connect founders seeking business partners. The service hosts approximately 4,500 founder profiles. Users complete a profile describing themselves and their preferences, and the platform surfaces matching candidates. When both parties express interest, they are connected. The tool is aimed at entrepreneurs looking to launch startups with compatible co-founders.
written from the facts on this page · September 2026
From the sources
Find a high-quality co-founder on our platform of 4500 founders. Tell us about yourself and your preferences and we’ll show you profiles of your ideal candidates. If there’s mutual interest, we match the two of you.
YC's free online platform for finding a high-quality co-founder through Startup School
We've distilled all of YC's knowledge about the make-up of successful founding teams into our matching engine — and into our confidential co-founder matchingfrom ycombinator.com
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