/Investor DB

Castle Island Ventures — 2023 Investments

5 investments dated 2023 · listed companies and verified rows first · show all

Coin Metricscoinmetrics.ioin𝕏Oct 2023SEC filingmedium confidence

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

Alkimiyaalkimiya.ioJan 2023 · $7.2M

A DeFi protocol creating a marketplace for blockspace.

Co-investorsBODLCircle VenturesCoinbase Ventures1kxDragonflyRobot Ventures+1 more

Dust Identitydustidentity.cominDec 2023

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 Songsmintsongs.comFeb 2023Acquired

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

PYORpyor.xyzin𝕏Seed · May 2023 · $4M

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.