DFX Intelligence
Castle Island Ventures III, L.P.
As of · the latest observation of this vehicle; each figure below carries its own filing date
Active deploymentFundraising status unknownADV: Venture Capital Fund
As of · the latest observation of this vehicle; each figure below carries its own filing date
4 additional placement agents
Every relationship, signal and contact on this record, with the source on each.
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What matters now
- +46%reported GAV
Reported gross assets rose from $146M to $214M between the Form ADV filings of 29 Mar 2024 and 31 Mar 2026.
The fund's assets as the adviser swears them, never its size or dry powder.
Drawing the relationship network…
Amounts, each with its basis
- Vintage
- 2022basis: adv first reported
- Target
- unknownnot announced
- First close
- unknownnever inferred from a Form D
- Final close
- unknownonly from an announcement or an LP disclosure
- Announced size
- unknown
- Form D offering
- indefinitewhat may be sold, not what was raised; file 021-431022, sworn by the adviser or filed under this vehicle
- Form D sold
- $0as of the filing of Jan 27, 2022
- First sale
- unknown
- Reported GAV
- $214Mon the Form ADV filed Mar 31, 2026; the fund's assets, never its size or dry powder
- Owners (ADV)
- 127
- Reported on ADV
- Mar 31, 2022 to Mar 31, 2026
Fundraising evidence
What counts as raisingA Form D offering is permission to sell, not a fund in market; an amount sold is never a close; an evergreen offering amended every year is not a raise.Unknown
latest Form D 2022-01-27, older than 15 months (fr-1)
evidence dated Jan 27, 2022.
Lifecycle
Active deployment
Lifecycle
vintage 2 to 4 years
age years: 4first sale: n/avintage year: 2022adv gav as of: Mar 31, 2026vintage basis: ADV first reportedform d sold: $0form d offering: n/aform d latest filed at: Jan 27, 2022
The fund's own reporting through time
4 Form ADV filings
| Filed | Type | Gross asset value | Owners | Min. investment | Adviser-owned | Audit | |
|---|---|---|---|---|---|---|---|
| Mar 31, 2022 | Venture Capital Fund | $152M | 158 | 1% | yes | ||
| Mar 29, 2023 | Venture Capital Fund | $145M | 153 | 1% | yes | ||
| Mar 29, 2024 | Venture Capital Fund | $146M | 153 | 1% | yes | ||
| Mar 31, 2026 | Venture Capital Fund | $214M | 127 | 1% |
Principals and agents
1 principal on Form D, 0 placement agents
- General Partner Castle Island GP III, LLC Promoter
Service providers
7 named on Form ADV Schedule D and Form D
- AuditorMAYER HOFFMAN MCCANN P.C. · BOSTON, Massachusetts, United StatesForm ADV filed Mar 31, 2026 reports.adviserinfo.sec.gov
- AdministratorJuniper Square · SAN FRANCISCO, California, United StatesForm ADV filed Mar 31, 2026 reports.adviserinfo.sec.gov
- CustodianANCHORAGE DIGITAL BANK N.A. · SIOUX FALLS, South Dakota, United StatesForm ADV filed Mar 31, 2026 reports.adviserinfo.sec.gov
Limited partners and their reported performance
Whose numbers these areEach row is the LP’s own number: its cash flows and its valuation policy as of its reporting date, not the fund’s. Net IRR is printed only when the LP prints one. The vintage is the LP’s definition (CalPERS: year of its first cash flow; WSIB: year of its initial investment).0 public LP reports
No public LP has reported this vehicle. The LP tape is read from public pension disclosures (see Limited partners); a fund appears here only when an LP’s report names it.
Known LPs and allocators
What these amounts and dates areA commitment date prints only when the source printed one; otherwise the row carries the date of the report that listed it. A foundation’s 990-PF line is a holding at fair value on its return, never a commitment.1 relationship, public pensions and the allocator graph, each counted once
| Allocator | Type | Amount | Date | Source |
|---|---|---|---|---|
| Kenneth Rainin Foundation | FOUNDATION | $3.3M fair value on the foundation's return | reported as of Dec 31, 2024 | Fact IRS Form 990 / 990-PF e-file returns |
Investments attributed to this vehicle
0
No investment attributed to this vehicle. The firm’s investments sit on the firm; a fund gets one only when a source names the vehicle.
Timeline
3 events
- Mar 31, 2026Administrator changed: Juniper Square replaced ADURO ADVISORS, LLC, first reported on the Form ADV filed March 31, 2026 (previous filing March 29, 2025)Administrator changed Fact Form ADV
- Mar 31, 2022Castle Island Ventures III, L.P. first reported on Form ADV by Castle Island Management, LLC (Venture Capital Fund), GAV $152,000,000Fund first reported on Form ADV Fact Form ADV
- Jan 27, 2022Castle Island Ventures III, L.P. filed Form D: no sales yet (indefinite offering), Venture Capital FundForm D filed Fact Form D
Evidence
15 observations
Every observation on this vehicle
- Entity type: Limited Partnership Jan 27, 2022 Fact Form D
- Form D fund type: Venture Capital Fund Jan 27, 2022 Fact Form D
- Form D industry group: Pooled Investment Fund Jan 27, 2022 Fact Form D
- Amendment: false Jan 27, 2022 Fact Form D
- Revenue range (Form D): Decline to Disclose Jan 27, 2022 Fact Form D
- Incorporated: withinFiveYears Jan 27, 2022 Fact Form D
- Jurisdiction: Delaware Jan 27, 2022 Fact Form D
- Amount sold (Form D): $0 Jan 27, 2022 Fact Form D
- Exemptions: 06b, 3C, 3C.7 Jan 27, 2022 Fact Form D
- Indefinite offering: true Jan 27, 2022 Fact Form D
- Investors (Form D): 0 Jan 27, 2022 Fact Form D
- Minimum investment (Form D): 0 Jan 27, 2022 Fact Form D
- Securities offered: pooled Jan 27, 2022 Fact Form D
- Office address: Jan 27, 2022 Fact Form D
- Year of incorporation: 2021 Jan 27, 2022 Fact Form D
Relationships across DFX
on 2 other DFX graphs
Across the graphs
Castle Island Ventures III, L.P. is the same institution as 2 records in Allocators and RIA and Wealth.
Allocators1RIA and Wealth1
DFX found 2 relationships across 2 datasets
Which record it is in each graph, what it is called there, and how the two were matched.
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Record history
2 dated events on the change ledger, latest event first
- Fund first reported on ADV2022-03-31source on record
- Form D filed2022-01-27source on record
The ledger records every merge, rename and reclassification this record went through and the dated filings observed on it, so the identity on this page can be traced to the records it was built from. The ledger's own sentences name other records, so they show with the names.