Funder directory / United States / Venture capital firms

645 Ventures

Venture capitalNew York, United States645ventures.comVerified 9 Nov 2026

645 Ventures is an early-stage venture capital firm based in New York and San Francisco. The firm invests in founders from pre-product and seed stages through Series A and growth stages across enterprise software, deep tech, AI infrastructure, fintech, consumer, cybersecurity, and health tech.

StagesSeed · Series A · Growth

Business modelB2B · B2C

Invests inUS

Deals recorded2

What they invest in

AI Consumer Deep tech Fintech Health Software and SaaS

645 Ventures is a New York and San Francisco-based early-stage venture firm that invests in exceptional founders with purity of motivation, earned secrets, and non-consensus thinking. source
We back exceptional founders at the earliest stages. source

Latest investments

Company	Round	Amount	Date	Co-investors	Source
Inner Balance	–	–	–	–	Portfolio page
Squire	–	–	–	–	Portfolio page

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