Foundations that fund organizations in San Quentin, California
Worked out from where the grants went, not where the foundations sit.
Funding landscape for San Quentin nonprofits
27 private foundations gave $729K to San Quentin organizations in their latest filings; 7 of the 27 that say either way accept applications.
30 grants in total, with a typical foundation's median grant to San Quentin around $7,500. 11 of these funders are based in California; the rest give here from elsewhere.
- Foundations giving here
- 27
- Accept applications
- 7
- of 27 that state a policy
- Dollars to San Quentin
- $729K
- latest filings
- Grants
- 30
- Typical median grant
- $7,500
- Based in CA
- 41%
- of funders listed
Funders, by dollars given to San Quentin organizations
| Foundation | Based in | Grants here | Dollars here | Median | Accepts applications | Typical purposes |
|---|---|---|---|---|---|---|
| The Andrew W Mellon Foundation | New York, NY | 1 | $500K | $500K | Yes | To continue to support higher education in prison and reent… |
| Buuck Family Foundation | Scottsdale, AZ | 1 | $30K | $30K | Preselected only | General |
| Maverick Capital Foundation | Dallas, TX | 2 | $27K | $13K | Preselected only | Education |
| Bob Barker Foundation Inc | Fuquayvarina, NC | 1 | $25K | $25K | Yes | General Operation |
| Rmlow Foundation | San Francisco, CA | 1 | $18K | $18K | Preselected only | Education |
| The Stanley S Langendorf Foundation | San Francisco, CA | 2 | $15K | $7,500 | Yes | Education |
| John Pritzker Family Fund | Redwood City, CA | 1 | $10K | $10K | Preselected only | General Operating Support |
| The California Wellness Foundation | Los Angeles, CA | 1 | $10K | $10K | Yes | Core operating support |
| Yerba Buena Fund | San Francisco, CA | 1 | $10K | $10K | Preselected only | General operations |
| Newton & Rochelle Becker Charitable Trus | Larkspur, CA | 1 | $10K | $10K | Preselected only | General support |
| Ramiah Family Foundation | Oconomowoc, WI | 1 | $10K | $10K | Preselected only | Charitable contribution |
| Jewell Foundation Limited | Bethesda, MD | 1 | $10K | $10K | Preselected only | Charitable |
| The Deck Foundation | Bethesda, MD | 1 | $10K | $10K | Preselected only | Charitable |
| Stern Sidney Memorial Tuw | St Louis, MO | 1 | $7,500 | $7,500 | Yes | General operating |
| Carl Lesnor Family Foundation | Melville, NY | 1 | $5,000 | $5,000 | Preselected only | To provide in support of the education program |
| The Silver Lining Foundation | San Francisco, CA | 1 | $5,000 | $5,000 | Preselected only | To support education programs |
| Select Equity Group Foundation | New York, NY | 1 | $5,000 | $5,000 | Preselected only | Matching gift |
| Astor Street Foundation Inc | Milwaukee, WI | 1 | $5,000 | $5,000 | Preselected only | Operating support |
| Hornthal Family Foundation | San Francisco, CA | 2 | $3,534 | $1,767 | Preselected only | General support |
| Charles C Baum Foundation Inc Inc | Severna Park, MD | 1 | $3,000 | $3,000 | Yes | General |
| The James Irvine Foundation | San Francisco, CA | 1 | $2,500 | $2,500 | Preselected only | For general operating support |
| The Thendara Foundation | Wilmington, DE | 1 | $2,000 | $2,000 | Preselected only | General support |
| The Seeja Foundation C/O Judith S Peck | New York, NY | 1 | $1,800 | $1,800 | Preselected only | General charitable |
| Fleishhacker Foundation | San Francisco, CA | 1 | $1,500 | $1,500 | Yes | Board Discretionary Grant for General Support |
| Zell Family Foundation Inc C/O Loring Wolcott & Coolidge Office | Boston, MA | 1 | $1,500 | $1,500 | Preselected only | General |
| Louis E Newman Charitable Trust | Los Altos, CA | 1 | $1,000 | $1,000 | Preselected only | College in prison program |
| Schoenith Foundation | Dallas, TX | 1 | $500 | $500 | Preselected only | Unrestricted general |
Source: IRS Form 990-PF Part XV, latest electronic return per foundation (2026-10-28). "Accepts applications" reflects the foundation's own checkbox on Part XV line 2. Grants to individuals excluded.
Common questions
Which foundations give to nonprofits in San Quentin, California?
The Andrew W Mellon Foundation, Buuck Family Foundation, Maverick Capital Foundation, Bob Barker Foundation Inc, Rmlow Foundation and 22 others reported grants to San Quentin organizations on their latest Form 990-PF.
How do I approach a foundation that doesn't accept applications?
A foundation that checks "contributes only to preselected organizations" on its 990-PF won't review a cold proposal. Look at who it funds, find a shared board member, grantee or advisor, and ask for an introduction. Foundations that accept applications usually list a contact and deadlines in Part XV; we show that text on each foundation's page.
Is this list complete?
No. It covers private foundations (Form 990-PF filers) whose latest electronic return lists at least one grant to an organization in San Quentin. Community foundations and corporate giving programs file different forms and are not included yet.