Foundation grants for nonprofits in Marin County
Private foundations gave $463 million to organizations in Marin County in tax years 2019 to 2025, according to their own IRS filings.
$463 million
given
8,995
grants
2,256
foundations
$5,000
typical grant
Foundations that give in Marin 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.
-
May and Stanley Smith Charitable Trust
Based in Larkspur, CA
Gave $17 million in Marin County in 2 grants. Typical grant: $8.3 million.
-
The Schmidt Family Foundation
Based in Palo Alto, CA
Gave $12 million in Marin County in 11 grants. Typical grant: $160,000.
- Environment & animals
- Food & nutrition
- International
-
Gates Foundation
Based in Seattle, WA
Gave $5.7 million in Marin County in 2 grants. Typical grant: $2.9 million.
- Health
- Food & nutrition
- International
-
Conrad N Hilton Foundation
Based in Westlake Village, CA
Gave $5.6 million in Marin County in 10 grants. Typical grant: $340,000.
- Science & technology
- Human services
- Environment & animals
-
Koret Foundation
Based in San Francisco, CA
Gave $3.3 million in Marin County in 37 grants. Typical grant: $25,000.
- Religion
- Community development
- Education
-
20 20 Quest
Based in Lawrenceville, GA
Gave $2.8 million in Marin County in 5 grants. Typical grant: $64,873.
- Health
-
Robert and Dana Emery Family Foundation
Based in Wilmington, DE
Gave $2.6 million in Marin County in 17 grants. Typical grant: $25,000.
- Education
- Community development
- Arts & culture
-
Wayne and Gladys Valley Foundation
Based in Oakland, CA
Gave $2.0 million in Marin County in 3 grants. Typical grant: $1.0 million.
- Science & technology
- Arts & culture
-
Hind Foundation
Based in San Luis Obispo, CA
Gave $2.0 million in Marin County in 1 grant. Typical grant: $2.0 million.
- Human services
-
The Henri & Tomoye Takahashi Charitable
Based in San Francisco, CA
Gave $2.0 million in Marin County in 1 grant. Typical grant: $2.0 million.
-
The Lindskog Foundation
Based in San Francisco, CA
Gave $1.9 million in Marin County in 19 grants. Typical grant: $100,000.
- Education
- Health
- Workforce & economic development
-
Crabill Family Foundation
Based in San Francisco, CA
Gave $1.8 million in Marin County in 6 grants. Typical grant: $50,000.
- Education
- Arts & culture
-
Crescent Porter Hale Foundation
Based in San Francisco, CA
Gave $1.6 million in Marin County in 18 grants. Typical grant: $100,000.
- Education
- Youth development
- Public safety & justice
-
The William G Irwin Charity Foundation
Based in San Francisco, CA
Gave $1.5 million in Marin County in 15 grants. Typical grant: $87,000.
- Education
- Human services
- Housing & homelessness
-
Stanley Smith Horticultural Trust
Based in Larkspur, CA
Gave $1.3 million in Marin County in 2 grants. Typical grant: $632,884.
-
Muirfield Foundation
Based in Philadelphia, PA
Gave $940,000 in Marin County in 2 grants. Typical grant: $470,000.
-
The Morris Stulsaft Foundation
Based in San Francisco, CA
Gave $770,000 in Marin County in 26 grants. Typical grant: $25,000.
- Education
- Religion
- Youth development
-
George H Sandy Foundation
Based in Milwaukee, WI
Gave $745,000 in Marin County in 17 grants. Typical grant: $30,000.
- Education
- Human services
- Civil rights & advocacy
-
Bothin Foundation
Based in San Francisco, CA
Gave $708,200 in Marin County in 20 grants. Typical grant: $39,250.
- Education
- Youth development
- Human services
-
The McKnight Foundation
Based in Minneapolis, MN
Gave $650,000 in Marin County in 4 grants. Typical grant: $50,000.
- Environment & animals
- Community development
See all 2,256 foundations and how well each fits your organization
Giving by program area in Marin County
| Program area | Foundations | Given |
|---|---|---|
| Education | 666 | $74 million |
| Environment & animals | 611 | $60 million |
| Science & technology | 94 | $40 million |
| Health | 290 | $25 million |
| Religion | 189 | $23 million |
| Human services | 522 | $22 million |
| International | 64 | $21 million |
| Arts & culture | 319 | $11 million |
| Community development | 80 | $11 million |
| Food & nutrition | 103 | $11 million |
| Youth development | 205 | $5.8 million |
| Public safety & justice | 97 | $5.4 million |
| Mental & behavioral health | 82 | $3.2 million |
| Civil rights & advocacy | 71 | $2.9 million |
| Housing & homelessness | 81 | $2.4 million |
| Workforce & economic development | 32 | $1.9 million |
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.
Find the foundations that fit your organization
With Professional, GrantAssembly lists every one of these foundations with how much it gives, who it has funded and how well it fits your organization. You can sort them by fit and keep notes on each one. Starter covers federal and California state grants.
Questions before you start?
Try Professional free for 14 days. No payment method needed. After that, Starter is $19/month and Professional is $39/month, billed monthly. Cancel anytime.