Castle Island Ventures

Castle Island Ventures is a venture capital firm based in Boston, Massachusetts, that focuses exclusively on public blockchains. It funds infrastructure and application companies building on and around blockchain protocols to power scalable services for a mass user base, targeting opportunities in cryptocurrency, financial technology, and information technology that enable the next generation of blockchain-enabled applications.

Mrinalini "Ria" Bhutoria

Principal

Ria Bhutoria

General Partner

Nic Carter

General Partner

Sean Judge

General Partner

Richard Sgalardi

Venture Partner

Matthew Walsh

Partner

Past deals in Asset Management

Surus

Seed Round in 2025
Surus is a platform designed for the future of finance, operating as a licensed financial institution. It specializes in institutional-grade asset management, custody services, and compliance solutions.

CAT Labs

Seed Round in 2024
CAT Labs specializes in cybersecurity and digital asset recovery solutions aimed at assisting governments in the fight against cryptocurrency-related crime. The company develops advanced tools designed to find, identify, and seize digital assets from a variety of sources, including smartphones, computers, servers, email accounts, and cloud storage. By providing these distinct capabilities, CAT Labs enables clients to enhance their digital asset protection and safeguard investors from scams, fraud, and hacking activities.

Mountain Protocol

Series A in 2024
Mountain Protocol is a financial technology company that operates a platform for issuing yield-bearing, regulated digital assets. Its flagship product, USDM, is a stablecoin backed by US Treasuries and custodied by Fidelity in a bankruptcy-remote setup, ensuring security and regulatory compliance. The platform aims to provide users with access to the risk-free rate, offering a seamless user experience and permissionless composability.

CAT Labs

Pre Seed Round in 2023
CAT Labs specializes in cybersecurity and digital asset recovery solutions aimed at assisting governments in the fight against cryptocurrency-related crime. The company develops advanced tools designed to find, identify, and seize digital assets from a variety of sources, including smartphones, computers, servers, email accounts, and cloud storage. By providing these distinct capabilities, CAT Labs enables clients to enhance their digital asset protection and safeguard investors from scams, fraud, and hacking activities.

Eaglebrook Advisors

Series A in 2022
Eaglebrook Advisors is a cryptocurrency-focused investment firm that specializes in providing financial advisors with access to bitcoin through its proprietary asset management platform. The firm offers a range of services designed to facilitate the management of digital investments, including portfolio integration, institutional custody, tax optimization, and liquidation strategies. By prioritizing security and compliance, Eaglebrook Advisors aims to simplify the investment process for financial advisors, enabling them to effectively manage and optimize their clients' cryptocurrency assets.
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