The William G Irwin Charity Foundation
The William G. Irwin Charity Foundation is a private foundation established in 1942 and based in San Francisco, California. The foundation makes capital grants to nonprofit organizations, with a primary focus on the physical improvement of humanity.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$115.2M
+3.3% YoY
Annual Giving
$10.8M
-13.3% YoY
Grant Count
117
+36.0% YoY
Avg Grant Size
$93K
-36.3% YoY
Mission & Focus Areas
The foundation gives primarily for the physical improvement of humanity. It supports a wide range of organizations addressing:
- Children and youth
- Education
- Health
- Human services
- Arts and culture
Grantmaking
Notable grants include:
Review Cycle
Friday, May 15, 2026 at 5:00 p.m. PST
How to Apply
**
Ready to take the next step with The William G Irwin Charity Foundation?
Geographic Focus
Where this funder awards grants
The foundation makes capital grants in California (with particular focus on the Bay Area) and Hawaii.
Grant Distribution by State
Cities
Financial History
Multi-year comparison from IRS filings
As of 2024:
- Total assets: $115,150,685
- Total revenue: $6,113,050
- Total expenses: $14,569,918
- Total liabilities: $6,980,000
As of 2023:
- Total assets: $111,000,000
- Total revenue: $8,170,000
- Total expenses: $14,600,000
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $115,150,685 | $111,448,347 | $109,869,635 |
| Revenue | $6,113,050 | $8,173,053 | $6,713,898 |
| Expenses | $14,569,918 | $14,575,206 | $16,479,469 |
| Qualifying Distributions | $11,100,729 | $12,810,006 | $10,257,041 |
| Net Investment Income | $5,686,925 | $7,717,649 | $6,265,522 |
| Distributable Amount | $5,549,289 | $5,361,507 | $5,709,418 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
250 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Leadership team and compensation from IRS filings
Staff Contacts:
Eunice Valentine, Senior Program Officer
- Email: evalentine@pfs-llc.net
- Phone: 415-561-6540 x228
Rachel Murch Watters, Grants Manager
- Email: rmurchwatters@pfs-llc.net
- Phone: 415-561-6540 x284
Board Members (as of 2023):
- Anthony O Zanze, President
- James F Zanze, Vice President
- Michelle Sauger, Treasurer
- William L Olds III, Audit Committee Chair
- Jane Olds Bogart, Trustee
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| JANE OLDS BOGART | TRUSTEE | 2 | — |
| WILLIAM L OLDS III | AUDIT COMMITTEE CHAIR | 2 | — |
| ANTHONY O ZANZE | PRESIDENT | 2 | — |
| JAMES F ZANZE | VICE PRESIDENT | 2 | — |
| MICHELLE SAUGER | TREASURER | 2 | — |
Contact Information
Mailing Address: William G. Irwin Charity Foundation 1660 Bush Street, Suite 300 San Francisco, CA 94109
Phone: 415-561-6540
Website: williamgirwinfoundation.org
Tax Status: 501(c)(3) private foundation EIN: 94-6069873 Tax-exempt since: September 1942
Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
What could you do with The William G Irwin Charity Foundation on Grantable?
- Assess strategic fit with your organization
- Draft a tailored letter of inquiry
- Find open RFPs from this funder
- Monitor for new funding opportunities