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Three Sisters Foundation

Grantmaking profile built from public IRS Form 990 filings.

LocationWilmington, Delaware
Grants on file69
Total giving on file$41.7M
Typical grant size$605K
Most recent filing year2025
Cause focusGeneral grantmaking

Largest recipients on file

RecipientStateGrantsTotal
Massachusetts General HospitalMA2$20.0M
International Rescue CommitteeNY12$7.8M
University of ChicagoIL12$5.6M
Urban School of San FranciscoCA3$2.5M
Hamilton CollegeNY8$2.1M
Swarthmore CollegePA3$1.5M
Breakthrough CollaborativeCA9$922K
Vanguard Charitable Endowment ProgramRI4$600K
Vanguard Charitable Endowment ProgrRI1$200K
Leahy Center for Lake ChamplainVT1$130K

Other general grantmaking funders in Delaware

See more foundations in Delaware or general grantmaking funders nationwide.

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