VC  Castle Island Ventures

     Office Locations:

1 Broadway, 16th Floor
Cambridge, MA 02142
Phone: 617-401-4017



  • Early
  • Seed



  • Financial Services
  • Information Technology



    Castle Island Ventures is a venture capital firm focused exclusively on public blockchains. The firm invests in infrastructure and application companies that will enable these transformative protocols to power services for the next billion users.



      Fund Name



    Get funds under management for this firm including Fund name, Dollar size of fund raise, and Vintage with a National Database subscription.

    Investment Firm Key

       VC = Venture Capital
       PE = Private Equity
       A = Angel
       I = Incubator
       MB = Merchant Bank
       VD = Venture Debt
       FI = Family Investment Office
       FOF = Fund of Funds
       ED = Economic Development Office   
       TT = Technology Transfer Office
       CVC = Corporate Venture Capital
       SEC = Secondary Purchaser
       HF = Hedge Fund/Mutual Fund
    Venture Capital
    Seed Stage
    (includes "pre-seed," or
    concept stage)
    No Revenue
    Early StageMinimal
    Growth Stage
    (also called Mid-stage)
    Expansion Stage
    (also called Late-stage)
    $7M and greater
    Private Equity
    Lower Middle Market$10M-$249M
    Middle Market$250M-$499M
    Upper Middle Market$500M-$1B
    Large Cap>$1B

    Investment Team:

    Name   Title
    Get the complete investment team + individual email addresses for investment team partners. Get personal images, LinkedIn links, investment specialties, office locations and more with a National Database subscription.
    Matthew Walsh Partner
    Nic Carter Partner


    Portfolio companies include:

      Coin Metrics
        web link

      Dust Identity
        web link

      Flipside Crypto
        web link

        web link



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