Castle Island Ventures

Other · Boston, Massachusetts

Castle Island Ventures is a direct investment firm based in Cambridge, Massachusetts. 51 portfolio companies, 1 recorded round and 8 funds are on record.

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

Castle Island Ventures's book

51 companies · priced for members
CompanyValuationRole
Crusoe▮▮
MoonPay▮▮
Erebor Bank▮▮
+ 48 more companies · all 51, priced and dated
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Castle Island Ventures portfolio at a glance

51 portfolio companies are on record for Castle Island Ventures, including Crusoe, MoonPay and Erebor Bank.

27 of the 51 carry a recorded valuation and 2 have recorded secondary-market trades, the names a secondary buyer or seller can price.

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