Dalton Caldwell is a Partner Emeritus at Y Combinator who previously served as Managing Director and Head of Admissions. See portfolio and contact routes.
Dalton Caldwell is a Partner Emeritus at Y Combinator who previously served as Managing Director and Head of Admissions after more than a decade leading the accelerator’s programs. His investment thesis centers on early-stage startups, with a focus on sectors including GovTech, EnergyTech, and BioTech, primarily within the San Francisco Bay Area. While specific check sizes and lead/follow behavior are not publicly detailed, his record includes 133 investments, such as a $500K pre-seed round in Codebuff in December 2024. Notable portfolio companies he has supported include App.net, imeem, and indirectly Twitch, which he helped co-found before its rise. In June 2025, Caldwell transitioned to Partner Emeritus and co-founded Standard Capital with Paul Buchheit and Bryan Berg to support early-stage startups with a new Series A fund. He is recognized as a serial entrepreneur and startup advisor rather than a public writer, with his distinctive viewpoint rooted in hands-on operational experience from founding and scaling tech companies.
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