Grants paid by Three Sisters Foundation C/O Rockefeller Trust Company
EIN 90-0914803 · Wilmington, DE · Form 990-PF, Part XV · NTEE T22
Three Sisters Foundation C/O Rockefeller Trust Company of Wilmington, DE (EIN 90-0914803) reported 32 grants paid totaling $31,327,500 to 15 recipients in tax years 2018–2025, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$31,327,500
32 grants
Recipients
15
distinct organizations
Tax years
2018–2025
7 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2018 | 4 | $1,585,000 | — |
| 2020 | 5 | $1,250,000 | — |
| 2021 | 6 | $2,362,500 | — |
| 2022 | 4 | $2,000,000 | — |
| 2023 | 7 | $12,000,000 | — |
| 2024 | 2 | $330,000 | — |
| 2025 | 4 | $11,800,000 | — |
Top recipients
The 15 recipients receiving the most from Three Sisters Foundation C/O Rockefeller Trust Company, by grants paid, out of 15 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| International Rescue Committee 13-5660870 | B | New York, NY | 7 | $15,080,000 | 2025 |
| Massachusetts General Hospital 04-1564655 | C | Boston, MA | 1 | $10,000,000 | 2023 |
| University of Chicago 36-2177139 | C | Chicago, IL | 5 | $2,520,000 | 2023 |
| Urban School of San Francisco 94-1622034 | B | San Francisco, CA | 1 | $1,015,000 | 2018 |
| Hamilton College 51-0218862 | B | Clinton, NY | 4 | $987,500 | 2025 |
| Swarthmore College 23-1352683 | B | Swarthmore, PA | 1 | $500,000 | 2021 |
| Breakthrough Collaborative 94-3140620 | B | Oakland, CA | 3 | $350,000 | 2023 |
| Vanguard Charitable Endowment Program | U | Warwick, RI | 2 | $300,000 | 2023 |
| Vanguard Charitable Endowment Progr | U | Warwick, RI | 1 | $200,000 | 2024 |
| Leahy Center for Lake Champlain 03-0347288 | B | Burlington, VT | 1 | $130,000 | 2024 |
| University of California - San Francisco 94-6036493 | C | San Francisco, CA | 1 | $100,000 | 2020 |
| Center for Reproductive Rights 13-3669731 | B | New York, NY | 1 | $50,000 | 2025 |
| Stanford University 26-4580872 | C | Stanford, CA | 2 | $45,000 | 2021 |
| Stanford Institute for Economic Policy Research | U | Stanford, CA | 1 | $25,000 | 2023 |
| Leland Stanford Junior University | U | Stanford, CA | 1 | $25,000 | 2020 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Every grant
All 32 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2025 | International Rescue Committee New York, NY | B | $11,300,000 | paid | UNRESTRICTED | 202601329349101970 |
| 2025 | Hamilton College Clinton, NY | B | $250,000 | paid | UNRESTRICTED | 202601329349101970 |
| 2025 | International Rescue Committee New York, NY | B | $200,000 | paid | RESTRICTED | 202601329349101970 |
| 2025 | Center for Reproductive Rights New York, NY | B | $50,000 | paid | UNRESTRICTED | 202601329349101970 |
| 2024 | Vanguard Charitable Endowment Progr Warwick, RI | U | $200,000 | paid | UNRESTRICTED | 202511279349103356 |
| 2024 | Leahy Center for Lake Champlain Burlington, VT | B | $130,000 | paid | UNRESTRICTED | 202511279349103356 |
| 2023 | Massachusetts General Hospital Boston, MA | C | $10,000,000 | paid | UNRESTRICTED | 202432009349101303 |
| 2023 | International Rescue Committee New York, NY | B | $1,000,000 | paid | UNRESTRICTED | 202432009349101303 |
| 2023 | University of Chicago Chicago, IL | C | $500,000 | paid | UNRESTRICTED | 202432009349101303 |
| 2023 | Vanguard Charitable Endowment Program Warwick, RI | U | $200,000 | paid | UNRESTRICTED | 202432009349101303 |
| 2023 | Breakthrough Collaborative Oakland, CA | B | $150,000 | paid | UNRESTRICTED | 202432009349101303 |
| 2023 | Hamilton College Clinton, NY | B | $125,000 | paid | URESTRICTED | 202432009349101303 |
| 2023 | Stanford Institute for Economic Policy Research Stanford, CA | U | $25,000 | paid | UNRESTRICTED | 202432009349101303 |
| 2022 | University of Chicago Chicago, IL | C | $1,000,000 | paid | UNRESTRICTED | 202302759349100725 |
| 2022 | International Rescue Committee New York, NY | B | $800,000 | paid | UNRESTRICTED | 202302759349100725 |
| 2022 | Vanguard Charitable Endowment Program Warwick, RI | U | $100,000 | paid | UNRESTRICTED | 202302759349100725 |
| 2022 | Breakthrough Collaborative Oakland, CA | B | $100,000 | paid | UNRESTRICTED | 202302759349100725 |
| 2021 | International Rescue Committee New York, NY | B | $750,000 | paid | UNRESTRICTED | 202231339349104618 |
| 2021 | University of Chicago Chicago, IL | C | $500,000 | paid | UNRESTRICTED | 202231339349104618 |
| 2021 | Swarthmore College Swarthmore, PA | B | $500,000 | paid | UNRESTRICTED | 202231339349104618 |
| 2021 | Hamilton College Clinton, NY | B | $487,500 | paid | UNRESTRICTED | 202231339349104618 |
| 2021 | Breakthrough Collaborative Oakland, CA | B | $100,000 | paid | UNRESTRICTED | 202231339349104618 |
| 2021 | Stanford University Stanford, CA | C | $25,000 | paid | UNRESTRICTED | 202231339349104618 |
| 2020 | International Rescue Committee New York, NY | B | $680,000 | paid | UNRESTRICTED | 202111379349102476 |
| 2020 | University of Chicago Chicago, IL | C | $320,000 | paid | UNRESTRICTED | 202111379349102476 |
| 2020 | Hamilton College Clinton, NY | B | $125,000 | paid | UNRESTRICTED | 202111379349102476 |
| 2020 | University of California - San Francisco San Francisco, CA | C | $100,000 | paid | UNRESTRICTED | 202111379349102476 |
| 2020 | Leland Stanford Junior University Stanford, CA | U | $25,000 | paid | UNRESTRICTED | 202111379349102476 |
| 2018 | Urban School of San Francisco San Francisco, CA | B | $1,015,000 | paid | UNRESTRICTED | 201931339349103918 |
| 2018 | International Rescue Committee New York, NY | B | $350,000 | paid | UNRESTRICTED | 201931339349103918 |
| 2018 | University of Chicago Chicago, IL | C | $200,000 | paid | UNRESTRICTED | 201931339349103918 |
| 2018 | Stanford University Stanford, CA | C | $20,000 | paid | UNRESTRICTED | 201931339349103918 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are the matcher's inference and should be read as leads until the check is published on the methodology page.
Source filings
Every figure above is traceable to one of these IRS e-file returns by its OBJECT_ID.
| Form | Tax year | Period end | Filed | Schema | IRS OBJECT_ID |
|---|---|---|---|---|---|
| 990PF | 2025 | 2025-12-31 | not stated | 2025v4.0 | 202601329349101970 |
| 990PF | 2024 | 2024-12-31 | not stated | 2024v5.0 | 202511279349103356 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.1 | 202432009349101303 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202302759349100725 |
| 990PF | 2021 | 2021-12-31 | not stated | 2021v4.2 | 202231339349104618 |
| 990PF | 2020 | 2020-12-31 | not stated | 2020v4.1 | 202111379349102476 |
| 990PF | 2018 | 2018-12-31 | not stated | 2018v3.1 | 201931339349103918 |
Derived from IRS Form 990-PF e-file XML; recipient identities from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The same rows as Parquet: manifest; as JSON: /api/funders/900914803.json.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.