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Castle Island Ventures

Boston, MACASTLE-ISLAND-VENTURES
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Dossier Summary

Public blockchain-focused venture fund investing in infrastructure and apps built on open networks.

Classification
Slugcastle-island-ventures
HQBoston, MA
Stage FocusSeed to Series A crypto/blockchain investments, heavily f…
Intel StatusAccepting submissions
🔥 BERNIE'S HOT TAKE

Castle Island is one of the few crypto VCs that actually understands the technology rather than just chasing narratives. Nic Carter is a respected voice who won't bullshit you about market conditions or your business model. They're crypto purists who care more about building real infrastructure than quick flips. The downside? They can be crypto maximalists who might not appreciate pivots away from pure blockchain plays. They're also a smaller fund, so don't expect the massive checks or operational support of larger firms.

KEY TAKEAWAYS
  • Best for: serious crypto infrastructure plays with real technical merit
  • Watch out for: rigid crypto ideology if you need to pivot business models
  • Known for: deep technical knowledge and authentic crypto community connections
Investment Thesis

Castle Island Ventures focuses exclusively on public blockchain infrastructure and applications, believing that programmable money and decentralized systems will reshape finance and commerce. They invest in protocols, infrastructure, and applications built on public blockchains.

Stage & Sector Focus

Seed to Series A crypto/blockchain investments, heavily focused on DeFi protocols, infrastructure tooling, and Web3 applications. They've been consistently crypto-native since 2017, not recent bandwagon jumpers.

Notable Portfolio
FigmentThe GraphBlockdaemonTaxBitMessariFlashbotsRitualFarcaster
Key Partners
Nic Carter
General Partner

Former Fidelity analyst turned prominent crypto researcher and investor. Known for thoughtful crypto commentary and regulatory advocacy. Founders appreciate his deep technical knowledge and industry connections.

Matt Walsh
General Partner

Former Digital Currency Group and came from traditional finance at Credit Suisse. Brings institutional perspective to crypto investments. More operationally focused than Carter, helps with business development and partnerships.

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