John Cowgill is a General Partner at Costanoa Ventures where he invests in Seed and Series A startups across applied AI, AI infrastructure, cybersecurity, space, and B2B fintech. He is operating out of Costanoa’s $275M fifth core fund and $119M third opportunity fund raised in September 2025, and primarily backs companies in the United States, with a focus on the San Francisco Bay Area and the broader West Coast. He serves on the boards of Empirical Security, detections.ai, RunReveal, Definite, and Muon Space, and has invested in companies like Locket Labs, Definite, Muon Space, Smile Identity, and Vividly. John graduated from Northwestern University and lives in San Francisco, California.
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