Slideshow of founders and startups at Y Combinator.

Y Combinator created a new model for funding early stage startups.

Twice a year we invest a small amount of money ($120k) in a large number of startups (most recently 68).

The startups move to Silicon Valley for 3 months, during which we work intensively with them to get the company into the best possible shape and refine their pitch to investors. Each cycle culminates in Demo Day, when the startups present their companies to a carefully selected, invite-only audience.

But YC doesn't end on Demo Day. We and the YC alumni network continue to help founders for the life of their company, and beyond.

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Since 2005, we've funded over 700 startups.

Y Combinator is a community of over 1,400 founders.

Our companies have a combined valuation of over $20B.

Marc Andreessen

"Y Combinator is the best program for creating top-end entrepreneurs that has ever existed."

Marc Andreessen, General Partner, Andreessen Horowitz
Adora Cheung

"Homejoy would not be where it is today without YC. Not only is the alumni network incredibly supportive, but the YC partners go above and beyond—time and time again—to help founders."

Adora Cheung, Founder, Homejoy (YC S10)
Satya Nadella

"It’s fantastic to see the work Y Combinator is doing to foster innovation and entrepreneurship in the startup community and Hacker News is one of my favorite sources of pointers to hackers and their hacks!"

Satya Nadella, CEO, Microsoft

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Hacker News

Hacker News

Startup School

Startup School