Jan Hammer
General Partner at Index Ventures
United Kingdom
Writes $500K – $50M checks · typically $15M
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About
Jan Hammer specializes in backing formative, non-obvious startups rebuilding finance and data infrastructure—favoring full-stack fintech approaches (e.g., Adyen) and early bets on companies like Collibra, Wise and Robinhood.
Invests in
ConsumerEnterprise SoftwareSaaS
Deals · 1
Cowboy Space CorporationQuoted
via Index Ventures · filed Apr 2026
Attribution from SEC filings, press coverage, and firm rosters.
Colleagues at Index Ventures
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Damir BecirovicScout
Investor at Index Ventures
Dana LorchScout
Partner at Company Capital
Dominique VidalScout
Venture Partner at Index Ventures
Emil SchaeferScout
Investor at Index Ventures
Erik KriessmannScout
Investor at Index Ventures
▶2 more connections
Investors connected to Jan in public investor directories — a warm-intro map.