Partner
Sean Judge
General Partner, Castle Island Ventures
- Firm
- Castle Island Ventures
- Title
- General Partner
- Role
- General partner
- Known as
- Investor
Record updated 18 September 2026
About
Sean is a General Partner at Castle Island Ventures where he focuses on financial market infrastructure, consumer fintech, and new applications powered by public blockchains. Sean is a board member at Felix, Eaglebrook Advisors, Cyclops, Valinor Digital, XFX, and was formerly a board member at Beam (acquired by Modern Treasury). Prior to joining Castle Island Ventures, Sean was a Principal at Highland Capital Partners where he focused on early growth investments. Prior to Highland, Sean was an investor at Pomona Capital in New York and Hong Kong. Sean started his career covering financial institutions as an investment banker at Bank of America Merrill Lynch. He holds a BA in Economics from Vanderbilt University.
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