AUMdb

Castle Island Management, Llc

State-registered Investment Adviser CRD 298999 · SEC file 802-114283 · Boston, MA · www.castleisland.vc
☆ Save with Pro ADV data as of Mar 31, 2026
Regulatory AUM
—
Discretionary
—
Clients
—
Avg AUM / client
—
Accounts
—
Employees
—

Private funds (16)

View all →

Reported in Form ADV Section 7.B.(1), filing of Mar 2024 · $542M combined gross assets

FundTypeDomicileGross assetsOwners
Castle Island Ventures I, L.P. Venture Capital Fund Delaware $168M 93
Castle Island Ventures Iii, L.P. Venture Capital Fund Delaware $146M 153
Castle Island Ventures Iii A, L.P. Venture Capital Fund Delaware $100M 69
Castle Island Ventures Ii, L.P. Venture Capital Fund Delaware $34.5M 65
Castle Island Ventures Ii A, L.P. Venture Capital Fund Delaware $23.1M 85
Civ Opportunity Series Co Invest I, L.P. (Series 4) Venture Capital Fund Delaware $18.8M 25
Castle Island Ventures I A, L.P. Venture Capital Fund Delaware $14.3M 17
Civ Opportunity Series Co Invest I, L.P. (Series 9) Venture Capital Fund Delaware $9.0M 5
Civ Opportunity Series Co Invest I, L.P. (Series 6) Venture Capital Fund Delaware $7.3M 13
Civ Opportunity Series Co Invest I, L.P. (Series 8) Venture Capital Fund Delaware $6.8M 10
Civ Opportunity Series Co Invest I, L.P. (Series 7) Venture Capital Fund Delaware $6.5M 19
Civ Opportunity Series Co Invest I, L.P. (Series 3) Venture Capital Fund Delaware $4.6M 11
Civ Opportunity Series Co Invest I, L.P. (Series 5) Venture Capital Fund Delaware $2.0M 70
Civ Opportunity Series Co Invest I, L.P. (Series 10) Venture Capital Fund Delaware $458K 3
Civ Opportunity Series Co Invest I, L.P. (Series 1) Venture Capital Fund Delaware $0 0

Private funds (16, $542M gross assets)

FundTypeGross assetsMin. investmentOwners
Castle Island Ventures I, L.P. Venture Capital Fund $168M $0 93
Castle Island Ventures Iii, L.P. Venture Capital Fund $146M $0 153
Castle Island Ventures Iii A, L.P. Venture Capital Fund $100M $0 69
Castle Island Ventures Ii, L.P. Venture Capital Fund $34.5M $0 65
Castle Island Ventures Ii A, L.P. Venture Capital Fund $23.1M $0 85
Civ Opportunity Series Co Invest I, L.P. (Series 4) Venture Capital Fund $18.8M $0 25
Castle Island Ventures I A, L.P. Venture Capital Fund $14.3M $0 17
Civ Opportunity Series Co Invest I, L.P. (Series 9) Venture Capital Fund $9.0M $0 5
Civ Opportunity Series Co Invest I, L.P. (Series 6) Venture Capital Fund $7.3M $0 13
Civ Opportunity Series Co Invest I, L.P. (Series 8) Venture Capital Fund $6.8M $0 10
Civ Opportunity Series Co Invest I, L.P. (Series 7) Venture Capital Fund $6.5M $0 19
Civ Opportunity Series Co Invest I, L.P. (Series 3) Venture Capital Fund $4.6M $0 11
Civ Opportunity Series Co Invest I, L.P. (Series 5) Venture Capital Fund $2.0M $0 70
Civ Opportunity Series Co Invest I, L.P. (Series 10) Venture Capital Fund $458K $0 3
Civ Opportunity Series Co Invest I, L.P. (Series 1) Venture Capital Fund $0 $0 0
Civ Opportunity Series Co Invest I, L.P. (Series 2) Venture Capital Fund $0 $0 0

From Form ADV Section 7.B private fund reporting.

Documents (1 archived)

FormPeriodSize
Form ADV (full filing) 03/31/2026 3.64 MB View · PDF · Source ↗

Archived copies of the firm's regulatory filings, versioned by content hash.

Disciplinary disclosures

No disciplinary events reported on the firm's latest Form ADV filing.

How they charge

Not reported.

Custody

Firm reports it does not have custody of client funds or securities (Item 9.A).

No custodian data reported or mined yet.

Source

All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Mar 31, 2026.

View current Form ADV (SEC/IAPD) ↗