Castle Island Ventures

Castle Island Ventures is a venture capital firm exclusively focused on public blockchains. The firm's mission is to identify and support entrepreneurs who are building the foundational infrastructure and innovative application companies necessary for these transformative protocols to achieve their full potential. Their investment strategy targets areas such as monetary networks, financial services, and internet infrastructure, aiming to drive the widespread adoption and utility of public blockchain technologies.

The firm was founded in 2018 by Matthew Walsh and Nic Carter, both of whom brought extensive experience from Fidelity Investments. At Fidelity, Walsh led various blockchain and cryptoasset initiatives, including a private fund dedicated to the sector, while Carter served as the firm's first cryptoasset analyst. Their decision to launch Castle Island Ventures stemmed from a shared vision of the disruptive potential of digital assets and a desire to focus on early-stage equity opportunities within the public blockchain space, distinguishing themselves from funds primarily focused on tokenized projects.

Castle Island Ventures has built a diverse portfolio of companies at the forefront of the blockchain ecosystem. Notable investments include Coin Metrics, a leading provider of crypto financial intelligence; Hidden Road, an institutional prime brokerage for digital assets; Notabene, a compliance solution for virtual asset businesses; and MoonPay, a prominent crypto payments infrastructure provider. Other key portfolio companies span various aspects of the blockchain and Web3 landscape, such as BlockFi, Bitwise, River Financial, OpenFX, and Talos.

The leadership team at Castle Island Ventures comprises seasoned professionals with deep expertise in finance, technology, and legal domains. Founding Partner Matthew Walsh specializes in infrastructure investments across financial services, enterprise software, and cybersecurity. Co-founder Nic Carter is recognized for his insights as a cryptoasset analyst and is also the co-founder of Coin Metrics. General Partners Sean Judge and Rich Sgalardi bring backgrounds in financial market infrastructure, consumer fintech, and cryptoasset investing. The firm's operational strength is further bolstered by Gretchen McCarey, CFO, with over two decades of venture capital finance experience, and Gus Coldebella, Chief Legal Officer, who previously served as acting general counsel for the U.S. Department of Homeland Security and chief legal officer at Circle and Paradigm.