Ann Miura-Ko

Co-Founding Partner, Floodgate

Pre-seed investor and Stanford entrepreneur lecturer

Palo Alto, CA$500K–$2M (pre-seed/seed) checks8 notable investments

Pre-SeedSeed

Website LinkedIn 𝕏@annimaniac Floodgate Crunchbase

ConsumerAIHealthcareMarketplacesEnterprise SaaS

Background

Ann Miura-Ko is a co-founding partner at Floodgate, where she has focused on pre-seed and seed investments since the firm's founding. She holds a PhD in quantitative modeling of computer security from Stanford, where she also serves as a lecturer in entrepreneurship and co-director of the Mayfield Fellows Program. She is a Yale University graduate (Class of 1998, Electrical Engineering) and a Palo Alto native. She is a co-founding member of All Raise, a nonprofit focused on improving diversity among venture funders and founders. She served on the Yale Corporation Board of Trustees from 2019 to 2025.

Investment Thesis

Invests at pre-seed and seed in companies with exceptional founders — 'superthinkers' and 'superbuilders' — across highly technical sectors and consumer markets where she can offer strategic partnership from day one.