Castle Island Ventures — 2023 Investments
5 investments dated 2023 · listed companies and verified rows first · show all
Coin Metrics provides market and on-chain data, reference rates, and indexes for crypto and digital assets, delivered to institutional investment teams via APIs.
Crypto & Web3Data & InfrastructureFintechBoston, US
Tim Rice(Founder)inAleksei Nokhrin(Founder)Alexander Bich(Founder)Jacob Franek(Founder)
BoardMathew S. McDermott(Director)Sean Judge(Director)in
Board seatNic Carter· per SEC Form D · $6.7M raise · filed Oct 2023
Co-investorsAcrew CapitalBlockchain CoinvestorsCoinbase VenturesCollab+CurrencyCommunitas Capital PartnersDigital Currency Group+10 more
A DeFi protocol creating a marketplace for blockspace.
Co-investorsBODLCircle VenturesCoinbase Ventures1kxDragonflyRobot Ventures+1 more
Dust Identity develops physical identity solutions using diamond-based technology to authenticate and trace high-value products and components across supply chains.
Circular EconomyDeep TechDefense TechEnterprise SoftwareHardwareIoTNew MaterialsRetail TechNeedham, US
Ophir Gaathon(Founder)inDirk Englund(Founder)
BoardIlya Fushman(Director)in
Co-investorsAlumni VenturesAngular VenturesBlockchain CoinvestorsF-Prime CapitalGrit VenturesMotier Ventures+7 more
Mint Songs was a music NFT marketplace for artists, acquired by Napster in February 2023 after winding down operations.
Co-investorsAAF Management Ltd.Coinbase VenturesEast West Ventures EWVFreestyle Capital
PYOR provides blockchain data analytics for crypto protocols, DAOs, and institutional investors, offering custom dashboards, risk and governance insights, and developer tools.
Crypto & Web3Data & InfrastructureDeveloper Tools
Co-investorsAntlerBharat Founder's FundFuture Perfect VenturesHash3 CapitalBalaji SrinivasanCoinbase Ventures+1 more
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.




















