Private foundation · EIN 84-3114715 · Wilmington, Delaware · Philanthropy & grantmaking

The Royso Foundation

Should you approach them?

Don't send a cold proposal. The foundation reports that it only gives to preselected organizations; an introduction through a current grantee or board member is the realistic route.

From the 2025 Form 990-PF: 6 grants paid, $345K total, median $25K.

Accepts applications
No
per 990-PF Part XV
Grants paid, 2025
6
$345K
Median grant
$25K
Stays in DE
—
of grants
Deadline
—
Assets
$7.9M

Grants paid in 2025

6 grants, all shown · from Form 990-PF Part XV

RecipientPurposeAmount
Idaho BasecampKetchum, IDCapital campaign and general support$250K
Massachusetts Insitutes of TechCambridge, MAMit sloan annual fund and general support$25K
Sun Valley Summer Symphony Inc - Sun Valley Music FestivalSun Valley, IDGeneral support$25K
Kieve Wavus Education IncNobleboro, MEGeneral support$25K
Haymakers for Hope IncBoston, MAGeneral support$10K
Boys & Girls Clubs of BellevueBellevue, WA2025 great futures day and general support$10K

By state: Idaho 2 · Massachusetts 2 · Maine 1 · Washington 1

About this foundation

The Royso Foundation is a private grantmaking foundation in Wilmington, Delaware, administered in care of Foundation Source, tax-exempt since 2022. Private foundations must pay out roughly 5% of their assets each year, mostly as grants to 501(c)(3) public charities.

All filings on ProPublica

Does The Royso Foundation accept grant applications?

No. On its 2025 Form 990-PF the foundation checked that it only makes contributions to preselected organizations. Look for an introduction through a current grantee.

How much does The Royso Foundation give each year?

In tax year 2025 it paid $345K across 6 grants, a median of $25K.

Where does The Royso Foundation give?

Idaho (2 grants), Massachusetts (2 grants), Maine (1 grants) and elsewhere, per its latest filing.

More foundations near Wilmington that accept applications

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