Y Combinator people

Samuel Harris Altman is an American entrepreneur who has been the chief executive officer (CEO) of the AI company OpenAI since 2019.

Peter Andreas Thiel is a German and American entrepreneur, venture capitalist, and conservative political activist. A co-founder of PayPal (1998), Palantir Technologies (2003), and Founders Fund (2005), he was also the first outside investor in Facebook (2004). According to The New York Times, as of December 2025, Thiel's estimated net worth stood at US$27.5 billion, placing him among the 100 richest individuals in the world.

English-American programmer, venture capitalist, and essayist

American computer scientist; creator of Morris Worm; associate professor at MIT

American computer engineer; created Gmail

American businessman

American biotech analyst, biologist, businesswoman, and co-founder of 23andMe

American Internet entrepreneur

American businessman & Co-founder and CEO of Airbnb

American Internet entrepreneur

American businessperson

American businesswoman and writer

American internet entrepreneur

Irish entrepreneur

American businessman and a co-founder of Airbnb

Canadian programmer

businessman

American businesswoman

American businessman

American businessperson (1982-)