10 Founders Backed by 645 Ventures (2026)

10 founders backed by 645 Ventures, with company, stage, and round detail. Includes Agency AI and Attention.

645 Ventures founders (10)

645 Ventures founders covers 10 founders on Accend, Agency AI and Attention and 7 other companies. The most common sectors are Fintech (3), SaaS (3) and AI Infrastructure (1). Members are based in 6 cities, led by New York, NY (3), San Francisco, CA (2) and Austin, TX (1). The remaining members span Cybersecurity (1) and Developer Tools (1). Companies represented include Cube Dev, Edera, Efficient Capital Labs, EngineEars, Momos, ReflexAI and Setpoint.io. Every founder below links to a profile with their company, backers, and the filings behind each round.

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