645 Ventures

Venture Capital

NYC-based early-stage firm managing $550M, leveraging proprietary Voyager platform with deep roots in NYC tech ecosystem.

New York, United States · 70+ investments · 120 portfolio companies

Seed
Early Stage
Growth
Developer Tools
Infrastructure
SaaS
Headquarters
New York, United States
Founded
2016
AUM
$550.0M
Portfolio Companies
120
Total Investments
70
Last Investment
Jan 2026
Geographic Focus
United States

Investment Thesis

Data-driven early-stage investor using proprietary Voyager platform to identify and support high-potential SaaS, infrastructure, and developer tools companies in NYC and beyond.

645 Ventures is a Venture Capital firm based in New York, United States. It has made 70 investments in Developer Tools and Infrastructure, including Spiketrap, Judy Security and Ally.io.

Portfolio120

Co-investors24

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24 co-investors across 132 shared portfolio companies — who they back alongside, and how often they lead.

Venture Capital ×21 · Accelerator ×2 · Hedge Fund ×1 · 50 shared rounds

Investment History

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