Three Sisters Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in WILMINGTON, DE. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $79.7M in total assets. In 2024, it awarded 2 grants totaling $330K. Net investment income was $1.9M.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$79.7M
+2.2% YoY
Annual Giving
$330K
-97.3% YoY
Grant Count
2
-71.4% YoY
Avg Grant Size
$165K
-90.4% YoY
About Three Sisters Foundation
Based on IRS filings
Three Sisters Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in WILMINGTON, DE. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $79.7M in total assets. In 2024, it awarded 2 grants totaling $330K. Net investment income was $1.9M.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $79,664,430 | $77,923,494 | $77,383,473 |
| Revenue | $2,053,362 | $12,919,392 | $20,108,071 |
| Expenses | $495,922 | $12,379,371 | $2,867,502 |
| Qualifying Distributions | $338,553 | $12,009,609 | $2,008,265 |
| Net Investment Income | $1,895,993 | $12,940,091 | $1,238,536 |
| Distributable Amount | $3,513,611 | $3,667,445 | $3,087,932 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 2 recipients in 2024
Grant Size Distribution
24 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| ROCKEFELLER TRUST COMPANY | ADMINISTRATI | 2 | $10,000 |
| CHARLES POHL CO ROCKEFELLER TRUST | TRUSTEE | 2 | — |
| EVE NIQUETTE CO ROCKEFELLER TRUST | TRUSTEE | 2 | — |
Subject Areas
Focus areas based on grantmaking activity
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Data last updated April 2026. Sourced from IRS Form 990-PF filings.
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