Data / Foundation grants / Costolo Family Foundation
Costolo Family Foundation: 7 grants to organizations, $625,000 (tax year ended December 2025)
Costolo Family Foundation, a private foundation in Wilmington, DE, paid 7 grants to organizations totaling $625,000 in its tax year ended December 2025, according to its Form 990-PF filed with the IRS on July 24, 2026. The largest was $150,000 to Grand Teton National Park Foundation in Moose, WY for general & unrestricted.
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- EIN
- 861199543
- Based in
- Wilmington, DE
- Assets
- $12,390,317
- Grants paid
- $625,000
- Tax year ended
- December 2025
Grants paid, tax year ended December 2025
From the Form 990-PF filed July 24, 2026, IRS object ID 202602059349100120. It reported $625,000 in grants paid; 7 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Grand Teton National Park Foundation | Moose, WY | General & Unrestricted | Philanthropy, voluntarism and grantmaking foundations | $150,000 | apps.irs.gov |
| Conservation International Foundation | Boston, MA | General & Unrestricted | $100,000 | apps.irs.gov | |
| Elephant Havens Wildlife Foundation Inc | Dallas, TX | General & Unrestricted | Animal-related | $100,000 | apps.irs.gov |
| Pacific Wild Alliance | Issaquah, WA | General & Unrestricted | Animal-related | $100,000 | apps.irs.gov |
| The Nature Conservancy | Cold Spring Harbor, NY | General & Unrestricted | $100,000 | apps.irs.gov | |
| Sarara Institute | Denver, CO | General & Unrestricted | Environment | $50,000 | apps.irs.gov |
| Teton County Search & Rescue Foundation | Jackson, WY | General & Unrestricted | Public safety, disaster preparedness and relief | $25,000 | apps.irs.gov |
Grants paid, tax year ended December 2024
From the Form 990-PF filed October 30, 2025, IRS object ID 202513039349101506. It reported $420,000 in grants paid; 7 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Conservation International Foundation | Arlington, VA | General & Unrestricted | Environment | $100,000 | apps.irs.gov |
| Grand Teton National Park Foundation | Moose, WY | General & Unrestricted | Philanthropy, voluntarism and grantmaking foundations | $100,000 | apps.irs.gov |
| The Nature Conservancy | Cold Spring Harbor, NY | General & Unrestricted | $100,000 | apps.irs.gov | |
| Pacific Wild Alliance | Issaquah, WA | General & Unrestricted | Animal-related | $50,000 | apps.irs.gov |
| Sarara Institute | Denver, CO | General & Unrestricted | Environment | $50,000 | apps.irs.gov |
| Sarara Institute | Denver, CO | To support the Reteti Elephant Sanctuary | Environment | $10,000 | apps.irs.gov |
| Wyoming Wetlands Society | Jackson, WY | General & Unrestricted | Environment | $10,000 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| Philanthropy, voluntarism and grantmaking foundations | $250,000 |
| Animal-related | $250,000 |
| Environment | $220,000 |
| Public safety, disaster preparedness and relief | $25,000 |
States funded
| Recipient state | Granted |
|---|---|
| Wyoming | $285,000 |
| New York | $200,000 |
| Washington | $150,000 |
| Colorado | $110,000 |
| Massachusetts | $100,000 |
| Texas | $100,000 |
| Virginia | $100,000 |
Also on SpecStream
- Who funds philanthropy, voluntarism and grantmaking foundations in Wyoming
- Who funds animal-related in Washington
- Who funds environment in Colorado
- Who funds animal-related in Texas
- Who funds environment in Virginia
- Who funds public safety, disaster preparedness and relief in Wyoming
Updated July 24, 2026. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.