2026 Summit
Geoff Ralston
Talent
Entrepreneur, Investor & Former President of Y Combinator
Geoff Ralston is a technology entrepreneur and investor who served as president of Y Combinator from 2019 to 2022, working with hundreds of startups throughout his time at the accelerator. Earlier in his career, he helped build Yahoo! Mail, served as Yahoo!’s chief product officer, and led Lala Media before its acquisition by Apple. He now leads the Safe Artificial Intelligence Fund, supporting startups working to make AI safer.