Geoff Ralston

Geoff Ralston is President at Y Combinator. Founder, Imagine K12. Angel Investor.

He is the President of Y Combinator and has been with YC since 2011. Prior to YC, he built one of the first web mail services, RocketMail which became Yahoo Mail in 1997. While at Yahoo, Geoff worked in engineering and ran a business unit before becoming Chief Product Officer. After Yahoo, he was CEO of Lala, which was acquired in 2009 by Apple. In 2011, he cofounded Imagine K12, the first Ed Tech accelerator, which funded companies like ClassDojo and Remind, and merged with YC in 2016. He has an AB in Computer Science from Dartmouth, an MS in Computer Science from Stanford, and an MBA from INSEAD.