Stage FocusPre-Seed, Seed, Series A, Series B+
GeographyGlobal
TypeVC
Last Activity2026
Industry Focus
Industries
BlockchainCybersecurity
Technical BenchLimited
Investor TypeGeneralist
ExposureMinimal DeepTech Investments
Bio
Castle Island Ventures is a venture capital firm based in Cambridge, Massachusetts, founded in 2018 and focused exclusively on public blockchains. It invests in early-stage companies at the intersection of traditional finance and public blockchain infrastructure. Founding partners Matthew Walsh and Nic Carter both previously worked on blockchain and cryptoasset research at Fidelity Investments; Ni...
Notable Investments
A
ARQB
BitwiseE
EreborF
FelixG
GromaH
Hidden Road PartnersP
Project 11S
Station70T
TalosT
TRM LabsX
XFXY
Yellow CardSimilar Funds
Bain Capital Crypto
Boston, United States
GeneralistBlockchainAICybersecurityPre-SeedSeed
1
1confirmation
Palo Alto, United States
GeneralistBlockchainPre-SeedSeed
ac
a16z crypto
Menlo Park, United States
GeneralistBlockchainPre-SeedSeed
AG
Amber Group
Hong Kong
GeneralistBlockchainPre-SeedSeed
BV
Bing Ventures
Singapore
GeneralistBlockchainPre-SeedSeed
BV
BITKRAFT Ventures
Berlin, Germany
GeneralistBlockchainPre-SeedSeed