Foundation grants for nonprofits in Sonoma County
Private foundations gave $210 million to organizations in Sonoma County in tax years 2019 to 2025, according to their own IRS filings.
$210 million
given
7,383
grants
1,711
foundations
$4,000
typical grant
Foundations that give in Sonoma County
The 20 biggest givers here whose tax filings don't say they fund only groups they pick themselves. Check each foundation's own guidelines before you apply.
-
Trione Foundation
Based in Santa Rosa, CA
Gave $3.5 million in Sonoma County in 90 grants. Typical grant: $24,000.
- Health
- Food & nutrition
- Human services
-
The William G Irwin Charity Foundation
Based in San Francisco, CA
Gave $2.5 million in Sonoma County in 17 grants. Typical grant: $115,000.
- Youth development
- Human services
- Health
-
The Schmidt Family Foundation
Based in Palo Alto, CA
Gave $2.5 million in Sonoma County in 11 grants. Typical grant: $275,000.
- Food & nutrition
- Environment & animals
- Community development
-
Peter T Paul Foundation Inc
Based in Petaluma, CA
Gave $2.2 million in Sonoma County in 1 grant. Typical grant: $2.2 million.
- Housing & homelessness
-
The Robert Wood Johnson Foundation
Based in Princeton, NJ
Gave $1.5 million in Sonoma County in 12 grants. Typical grant: $75,000.
- Human services
- Housing & homelessness
- Public safety & justice
-
Bethlehem Foundation - Agy Main
Based in Rescue, CA
Gave $1.4 million in Sonoma County in 33 grants. Typical grant: $30,000.
- Human services
- Health
- Food & nutrition
-
The California Wellness Foundation
Based in Los Angeles, CA
Gave $1.2 million in Sonoma County in 18 grants. Typical grant: $15,000.
- Health
- Human services
- Public safety & justice
-
Koret Foundation
Based in San Francisco, CA
Gave $1.0 million in Sonoma County in 4 grants. Typical grant: $205,000.
- Education
- Science & technology
-
Bothin Foundation
Based in San Francisco, CA
Gave $1.0 million in Sonoma County in 31 grants. Typical grant: $37,000.
- Human services
- Youth development
- Health
-
The Ford Foundation
Based in New York, NY
Gave $1.0 million in Sonoma County in 10 grants. Typical grant: $100,000.
- Human services
- Environment & animals
- Public safety & justice
-
Carestar Foundation
Based in Berkeley, CA
Gave $1.0 million in Sonoma County in 4 grants. Typical grant: $250,000.
- Public safety & justice
- Environment & animals
- Health
-
Codding Foundation
Based in Cotati, CA
Gave $736,298 in Sonoma County in 91 grants. Typical grant: $4,100.
- Arts & culture
- Youth development
- Education
-
Medtronic Communities Foundation
Based in Minneapolis, MN
Gave $670,000 in Sonoma County in 3 grants. Typical grant: $135,000.
- Science & technology
- Education
- Workforce & economic development
-
The Duffield Family Foundation
Based in Pleasanton, CA
Gave $656,000 in Sonoma County in 3 grants. Typical grant: $30,000.
- Education
- Community development
- Environment & animals
-
The Heck Foundation
Based in Guerneville, CA
Gave $606,500 in Sonoma County in 193 grants. Typical grant: $1,000.
- Education
- Arts & culture
- Human services
-
The David and Lucile Packard Foundation
Based in Los Altos, CA
Gave $551,000 in Sonoma County in 5 grants. Typical grant: $125,000.
- Environment & animals
- Science & technology
- Human services
-
The Donald and Maureen Green Foundation
Based in Santa Rosa, CA
Gave $539,413 in Sonoma County in 17 grants. Typical grant: $25,000.
- Arts & culture
- Environment & animals
- Food & nutrition
-
George H Sandy Foundation
Based in Milwaukee, WI
Gave $535,000 in Sonoma County in 14 grants. Typical grant: $35,000.
- Housing & homelessness
- Human services
- Youth development
-
Surdna Foundation Inc
Based in New York, NY
Gave $525,000 in Sonoma County in 7 grants. Typical grant: $100,000.
- Community development
- Human services
- Environment & animals
-
Blue Cross & Blue Shield of
Based in Flowood, MS
Gave $407,863 in Sonoma County in 2 grants. Typical grant: $203,931.
- Education
- Health
See all 1,711 foundations and how well each fits your organization
Giving by program area in Sonoma County
| Program area | Foundations | Given |
|---|---|---|
| Education | 371 | $37 million |
| Environment & animals | 493 | $30 million |
| Human services | 394 | $29 million |
| Arts & culture | 202 | $18 million |
| Health | 204 | $17 million |
| Youth development | 175 | $15 million |
| Food & nutrition | 194 | $11 million |
| Science & technology | 71 | $7.6 million |
| Public safety & justice | 86 | $5.5 million |
| Community development | 96 | $5.3 million |
| Housing & homelessness | 63 | $5.1 million |
| Religion | 113 | $4.6 million |
| Civil rights & advocacy | 59 | $3.1 million |
| Mental & behavioral health | 34 | $2.4 million |
| Workforce & economic development | 39 | $1.9 million |
| International | 57 | $934,233 |
From the grants private foundations list in their IRS tax filings (Form 990-PF, tax years 2019 to 2025), as of Oct 31, 2026. Grants to individuals are left out. A grant counts for the county of the organization that received it, wherever the foundation is based. The typical grant is the middle one. Program areas come from each organization's IRS category and the stated purpose of the grant, so those figures are estimates. A foundation can ask to be left off this page by emailing contact@grantassembly.com.
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