The Royso Foundation
Invitation OnlyWilmington, Delaware · EIN 84-3114715 · Private foundation
Grants paid (2025)$345K
Organizations funded6
Typical grant$25,000
Total assets$7.9M
Half of its grants to organizations were between $10,000 and $25,000.
From the return
How to apply
On its return for tax year 2025 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
100% of grants went outside Delaware.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Idaho Basecamp | Ketchum, ID | Capital campaign and general support | $250,000 |
| Massachusetts Insitutes of Tech | Cambridge, MA | MIT sloan annual fund and general support | $25,000 |
| Sun Valley Summer Symphony Inc - Sun Valley Music Festival | Sun Valley, ID | General support | $25,000 |
| Kieve Wavus Education Inc | Nobleboro, ME | General support | $25,000 |
| Haymakers for Hope Inc | Boston, MA | General support | $10,000 |
| Boys & Girls Clubs of Bellevue | Bellevue, WA | 2025 great futures day and general support | $10,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $345,000 | 6 |
| 2024 | $810,000 | 5 |
| 2023 | $1,710,000 | 5 |
Sources
- IRS Form 990-PF, tax year 2025, filed Jul 13, 2026 - IRS e-file batch, object ID 202641949349100659
- IRS Tax Exempt Organization Search for EIN 84-3114715
- Profile updated Nov 6, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.