Y Combinator
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Y COMBINATOR - Description and Overview

INVESTOR TYPE Incubator/Accelerator
Y Combinator is a seed-stage venture firm, founded in 2005 by Paul Graham, Robert Morris, Trevor Blackwell, and Jessica Livingston. Y Combinator specializes in funding early stage startups, primarily in the software and web services arena. The program is headquartered in Mountain View, California.

The program was launched in 2005 with the aim of developing a new model of startup funding. Currently, they invest a small amount of money twice per year (average $18,000 investment) in a large number of startups. Their first class began with 8 startups and their classes now exceed 30 startups per session.

The startups move to Silicon Valley for 3 months and work intensively with the Y Combinator team to get the company into the best possible shape and ready to pitch to investors. The 3 month period ends with Demo Day when the startups present to an audience of investors. Given Y Combinator's notoriety in technology circles, their Demo Days are now very well-attended.

Initially Y Combinator was offered in Cambridge, Massachusetts and Mountain View, California but in early 2009, the program made the decision to only operate in Silicon Valley.


More detailed information and downloadable data for Y Combinator including their entire portfolio, amounts invested and industry focus areas is available at CB Insights.