Castle Island Ventures

Castle Island Ventures is an early-stage venture capital firm based in Boston, Massachusetts, focused exclusively on public blockchain investments. Founded in 2018 by Nic Carter and Matt Walsh, the firm supports startups building the infrastructure and applications necessary for the future of decentralized networks. Their mission is to invest in transformative blockchain-based projects that can help realize the full potential of public blockchains. With a portfolio that includes companies like Bitwise, a leading crypto index fund manager, and Arcade, a platform for NFT finance, Castle Island Ventures is deeply embedded in the Web3 and blockchain ecosystem​. They primarily invest in pre-seed and seed rounds, offering checks from $500K to $10M, focusing on three core themes: monetary networks, financial services, and internet architecture​. Castle Island Ventures recently launched its third fund, raising $250 million to back innovative projects in public blockchains. This new fund allows them to continue supporting the shift toward decentralized, rules-based monetary systems, programmable financial services, and Web3 applications​. The firm’s investment team includes general partners Nic Carter, Sean Judge, and Ria Bhutoria, all of whom bring extensive experience in the blockchain and financial sectors​.