Data / Foundation grants / The Royso Foundation
The Royso Foundation: 6 grants to organizations, $345,000 (tax year ended December 2025)
The Royso Foundation, a private foundation in Wilmington, DE, paid 6 grants to organizations totaling $345,000 in its tax year ended December 2025, according to its Form 990-PF filed with the IRS on July 13, 2026. The largest was $250,000 to Idaho Basecamp in Ketchum, ID for capital campaign and general support.
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- EIN
- 843114715
- Based in
- Wilmington, DE
- Assets
- $7,887,872
- Grants paid
- $345,000
- Tax year ended
- December 2025
Grants paid, tax year ended December 2025
From the Form 990-PF filed July 13, 2026, IRS object ID 202641949349100659. It reported $345,000 in grants paid; 6 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Idaho Basecamp | Ketchum, ID | Capital campaign and general support | Environment | $250,000 | apps.irs.gov |
| Kieve Wavus Education Inc | Nobleboro, ME | General support | Human services | $25,000 | apps.irs.gov |
| Massachusetts Insitutes of Tech | Cambridge, MA | Mit sloan annual fund and general support | $25,000 | apps.irs.gov | |
| Sun Valley Summer Symphony Inc - Sun Valley Music Festival | Sun Valley, ID | General support | $25,000 | apps.irs.gov | |
| Boys & Girls Clubs of Bellevue | Bellevue, WA | 2025 great futures day and general support | $10,000 | apps.irs.gov | |
| Haymakers for Hope Inc | Boston, MA | General support | $10,000 | apps.irs.gov |
Grants paid, tax year ended December 2024
From the Form 990-PF filed September 15, 2025, IRS object ID 202502589349101065. It reported $810,000 in grants paid; 5 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Eastside Prepartory School | Kirkland, WA | Gift for entrepreneurship, philanthropic learning, teacher endowment, and annual fund. | $550,000 | apps.irs.gov | |
| First Presbyterian Church of Bellevue | Bellevue, WA | General support | $200,000 | apps.irs.gov | |
| Breaking Boundaries Foundation | Bellevue, WA | General support | Youth development | $25,000 | apps.irs.gov |
| Massachusetts Insitutes of Tech | Cambridge, MA | Mit sloan annual fund and general support | $25,000 | apps.irs.gov | |
| Haymakers for Hope Inc | Boston, MA | General support | $10,000 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| Environment | $250,000 |
| Human services | $25,000 |
| Youth development | $25,000 |
States funded
| Recipient state | Granted |
|---|---|
| Washington | $785,000 |
| Idaho | $275,000 |
| Massachusetts | $70,000 |
| Maine | $25,000 |
Also on SpecStream
- Who funds environment in Idaho
- Who funds human services in Maine
- Who funds youth development in Washington
Updated July 13, 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.