SD Trombetta Foundation
SD Trombetta Foundation is a private foundation based in Los Gatos, California. The organization holds 501(c)(3) status and was established in 1993 according to its IRS ruling year.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$2.0M
-10.5% YoY
Annual Giving
$713K
-27.6% YoY
Grant Count
13
-35.0% YoY
Avg Grant Size
$55K
+11.4% YoY
Mission & Focus Areas
The foundation's grant-making priorities focus on:
- Education
- Philanthropy, Voluntarism & Grantmaking
- Human Services
Within education, the foundation has demonstrated particular interest in science education, STEM education, and support for education nonprofits.
Grantmaking
Based on the most recent IRS Form 990 filing (2024), the foundation distributed $713,000 in total giving during that period.
Average Grant
amount and median grant amount data are available but specific figures were not fully detailed in source materials
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Geographic Focus
Where this funder awards grants
The foundation primarily directs its grant-making to organizations in:
- California
- Massachusetts
- District of Columbia
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
Assets: $2,032,157
Annual Giving: $713,000 (based on 2024 IRS Form 990 filing)
The foundation's financial data is derived from digitized IRS Form 990 filings, with information last updated February 24, 2026.
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $2,032,157 | $2,271,388 | $3,012,126 |
| Revenue | $485,130 | $257,255 | $457,504 |
| Expenses | $722,771 | $1,001,193 | $1,216,955 |
| Qualifying Distributions | $713,000 | $985,000 | $1,197,000 |
| Net Investment Income | $485,130 | $252,534 | $445,342 |
| Distributable Amount | $139,860 | $138,334 | $185,892 |
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
88 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Anne Decker | Director | 1 | — |
| Diane Trombetta | President | 1 | — |
| Liza Reynolds | Director | 1 | — |
| Loren Reynolds | Director | 1 | — |
Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
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