Geoff Ralston

American businessman

Geoff Ralston is the former President of Y Combinator. He was the CEO of La La Media, Inc., developer of Lala, a web browser-based music distribution site.²

From Wikipedia’s article on Geoff Ralston (this version), CC BY-SA 4.0.

About

Prior to Lala, Ralston worked for Yahoo!, where he was Vice President of Engineering and Chief Product Officer. In 1997, Ralston created Yahoo! Mail. In 2011 he co-founded Imagine K12, an education technology incubator with Alan Louie and Tim Brady. He joined Y Combinator in January 2012 and transitioned at the end of 2022.

In 2025, Ralston launched the Safe Artificial Intelligence Fund (SAIF). In a June 2026 interview, he identified biosecurity as the principal focus of his work on AI safety at that time.

From Wikipedia’s article on Geoff Ralston, shared under CC BY-SA 4.0.²

Companies

Y CombinatorChair May 2019 to Dec 2022⁷

Early life and education

Date not recordedDartmouth College³
Date not recordedStanford University³

Career

Occupation: business executive.⁵

2019 to 2022Chair, Y Combinator⁴

Personal life

CitizenshipUnited States⁶

Sources

The numbers on this page point here. Each one links to the record it came from.

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WikidataGeoff Ralston on Wikidata
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WikipediaGeoff Ralston on Wikipedia
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WikidataGeoff Ralston: education, on Wikidata
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WikidataGeoff Ralston: Chair, Y Combinator, on Wikidata
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WikidataGeoff Ralston: occupation, on Wikidata
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WikidataGeoff Ralston: citizenship, on Wikidata
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WikidataY Combinator, Chair