Private Market View

Castle Island Ventures

Other · Boston, Massachusetts

AUM
$22
Portfolio companies
51
Recorded deals
1
1 in last 12M
Last investment
Feb 2026

Key facts

  • Castle Island Ventures is a other based in Boston, Massachusetts with 51 tracked portfolio companies.
  • Notable positions include Crusoe, MoonPay, Erebor Bank, Category Labs, Talos Global.
  • Private Market View records 1 deal participation by Castle Island Ventures.
  • Castle Island Ventures’s most recent recorded investment was in Feb 2026, one of 1 in the last 12 months.
  • Castle Island Ventures has 8 funds on record.
  • The team roster lists 6 people.

About Castle Island Ventures

Castle Island Ventures is a direct investment firm based in Cambridge, Massachusetts. Established in 2018, the firm is focused exclusively on public blockchains. It invests in infrastructure and application companies that will enable transformative protocols to power services for future users. The assets of the firm are managed by the executive management team.

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  • ·The book's top 25 — of 51 recorded positions
  • ·Every recorded deal — 1 rounds
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Portfolio, priced

51 companies · by our current valuations
CompanyValuationRole
Crusoe$24.5B
MoonPay$5.0B
Erebor Bank$4.0B
Category Labs$3.0B
Talos Global$1.5B
TRM Labs$1.0B
Bitwise Asset Management$670.0M
Digital Asset$380.0M
Flipside (Other Financial Services)$350.0M
Andrena$237.0M
Alpen Labs$208.5M
Interlay$187.0M
Félix$130.0M
Project Eleven$123.0M
Eaglebrook Advisors$122.5M
+ 36 more companies · a free account shows the top of the book

Recent deals

1 recorded
Feb 2026Erebor BankSeed Round$635.0M

Funds

6 of 8 recorded
  • Castle Island Ventures IV Feeder, L.P.2025
  • Castle Island Ventures IV, L.P.2025
  • Castle Island Ventures III-A, L.P.2022
  • Castle Island Ventures III, L.P.2022
  • Castle Island Ventures II-A, L.P.2020
  • Castle Island Ventures II, L.P.2020
Team
6 people on record — 3 with verified contacts

Partners, principals, and the people who answer a pitch. Pro members reveal contacts with credits.

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Frequently asked

What companies does Castle Island Ventures invest in?
Castle Island Ventures has 51 recorded portfolio companies, including Crusoe, MoonPay, Erebor Bank, Category Labs.
What is Castle Island Ventures's AUM?
Castle Island Ventures manages approximately $22 in assets.
Is Castle Island Ventures actively investing?
Castle Island Ventures's most recent recorded investment was in Feb 2026, with 1 investments in the last 12 months.