Y Combinator (YC) is a startup fund and program. Since 2005, YC has invested in nearly 3,000 companies including Airbnb, DoorDash, Stripe, Instacart, Dropbox, and Coinbase. The combined valuation of YC companies is over $300B. YC has programs and resources that support founders throughout the life of their company. Startup School teaches the basics of starting a company. The YC batch program helps founders as they build their product, talk to their customers, and raise funding. Work at a Startup makes it easy for founders to find their first engineers. YC Series A helps founders launch their A round. YC Growth Program provides founders with resources to scale their companies and hire an executive team, and YC Continuity invests in their later stage rounds
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The Y Combinator annual revenue was $16.9 million in 2026.
5 people are employed at Y Combinator.
The NAICS codes for Y Combinator are [5239, 525910, 523920, 523, 5259, 52, 52591, 525, 52392].
The SIC codes for Y Combinator are [672, 67].