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 107 . 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 . learn more startups see all companies since 2005 we ve funded over 1 000 startups . y combinator is a community of over 2 400 founders . our companies have a combined valuation of over 65b . quotes read about tracy young founder of plangrid yc w12 on female founder stories y combinator is the best program for creating top end entrepreneurs that has ever existed . marc andreessen general partner andreessen horowitz i doubt that stripe would have worked without yc . it s that simple . acquiring early customers figuring out who to hire closing deals with banks raising money yc s partners were closely involved and crucially helpful . patrick collison founder stripe yc s09 i ve been fortunate to engage with the yc community at past events over the last few years and always walk away impressed with the passion and caliber of talent that yc brings together . julia hartz co founder & president eventbrite more quotes also hacker news startup school jobs stories fellowship research winter 2016 demo day march 22 23 2016 female founders conference april 4 2016 startup school silicon valley october 11 2014 watch startup school europe july 26 2014 watch about people blog resources legal press contact apply make something people want .