The Stanley S Langendorf Foundation
The Stanley S Langendorf Foundation is a private foundation based in San Francisco, California, established in 1983. It operates as a grantmaking organization focused on supporting nonprofit organizations that provide direct services to residents of San Francisco.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$4.9M
-9.7% YoY
Annual Giving
$955K
+31.8% YoY
Grant Count
134
+31.4% YoY
Avg Grant Size
$7K
+0.4% YoY
Mission & Focus Areas
The Foundation awards grants to applicants whose organizations directly serve the residents of the City and County of San Francisco in the following areas:
- Primary and Secondary Education
- Youth Services
- Social Services
- Community and Social Services
- Arts
The Foundation exclusively considers applications from organizations located in and/or providing direct services to the residents of the City and County of San Francisco.
Grantmaking
The Foundation operates on an annual grant cycle with two application tracks:
Grant Range
$5,000–$7,500
Review Cycle
with two application tracks:
How to Apply
**
Ready to take the next step with The Stanley S Langendorf Foundation?
Geographic Focus
Where this funder awards grants
The Foundation exclusively funds organizations located in and/or providing direct services to residents of the City and County of San Francisco, California.
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
As of Fiscal Year 2024:
- Total Assets: $4,926,143–$6,200,000
- Total Revenues: $528,865
- Investment Income and Dividends: $204,728
- Total Expenses: $1,060,879
- Total Giving: $617,000–$944,000
The Foundation's assets rank in the top 25% among U.S. foundations.
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $4,926,143 | $5,457,157 | $5,968,258 |
| Revenue | $528,865 | $342,985 | $476,034 |
| Expenses | $1,060,879 | $854,086 | $901,169 |
| Qualifying Distributions | $944,000 | $724,000 | $792,400 |
| Net Investment Income | $411,986 | $212,899 | $453,198 |
| Distributable Amount | $313,837 | $326,808 | $371,151 |
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
Open Grants
1 open opportunity from The Stanley S Langendorf Foundation
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Leadership team and compensation from IRS filings
- Richard J Guggenhime – President & Treasurer
- Lisa G Hauswirth – Secretary
- Charles H Clifford Jr – Director
- Patricia Capbarat – Director
- Andrew Guggenhime – Director
The Foundation operates with limited staffing, with board members dedicating approximately one hour per week and receiving no compensation.
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| RICHARD J GUGGENHIME | PRESIDENT/TR | 1 | — |
| LISA G HAUSWIRTH | SECRETARY | 1 | — |
| CHARLES H CLIFFORD JR | DIRECTOR | 1 | — |
| PATRICIA CAPBARAT | DIRECTOR | 1 | — |
| ANDREW GUGGENHIME | DIRECTOR | 1 | — |
Contact Information
- Website: www.sslfoundation.org
- Email: grants@sslfoundation.com
- Mailing Address: PO Box 2509, San Francisco, CA 94126-2509
- EIN: 94-2861512
Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
What could you do with The Stanley S Langendorf 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