SD Trombetta Foundation
SD Trombetta Foundation is a private foundation based in Los Gatos, California. Its 2024 filing lists grants to charitable organizations working in areas including education, health, environmental policy, civil rights, and humanitarian relief.
SD Trombetta Foundation at a glance
In short: SD Trombetta Foundation gave $713K across 13 grants in 2024 (avg $55K), mostly in California. 8% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $713,000
- -27.6% vs 2023
- Grants made (2024)
- 13
- -35.0% vs 2023
- Average grant
- $54,846
- +11.4% vs 2023
- Median grant
- $50,000
- Total assets
- $2,032,157
- -10.5% vs 2023
- New grantees (estimate)
- 8% first-time grantees (1 of 13, 2024; small sample)
- Primary geography
- California (58% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to SD Trombetta Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: 23428 Summit Road, Los Gatos, CA 95033
Phone: (408) 353-3931
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who SD Trombetta Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was Cabrillo College Foundation ($200K). Together the top 10 received $675K.
Grant Size Distribution
88 grants across all recorded years
The most common grant size was under $50K: 47 grants of 88 (53%).
Geographic Focus
Where this funder awards grants
In 2024, 58% of grant dollars went to recipients in California, 14% to Massachusetts, and 7% each to recipients in the District of Columbia, Texas, and Alabama.
Grant Distribution by State
Share of 2024 grant dollars across all 13 itemized grants.
States
Cities
Is SD Trombetta Foundation open to new grantees?
8%
first-time grantees, 2024
In 2024, 1 of 13 grantees (8%) were first-time recipients. With only 13 grantees, that is a small sample: one grantee more or less moves the share by about 8 points. First grants averaged $3K; repeat grants $59K. How we count
Medians: $3K first-time, $50K repeat.
- 85% of 2024 grantees were also funded in 2023. Method
- Giving fell 28% from 2021 to 2024. Method
- In 2024 it paid out 510% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $713K (2024) to $1.2M (2022). In 2024 it made 13 grants totaling $713K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Cabrillo College Foundation Aptos, CA | Support of private foundation. | $200,000 |
| AAUW San Jose, CA | Support of Charitable Organization. | $75,000 |
| American Red Cross Beaumont, TX | Support of Charitable Organization. | $50,000 |
| Clean Air Task Force Boston, MA | Support of Charitable Organization. | $50,000 |
| Give Well Top Charities Fund Oakland, CA | Support of Charitable Organization. | $50,000 |
| The Humane Farming Association San Rafael, CA | Support of Charitable Organization. | $50,000 |
| Southern Poverty Law Center Montgomery, AL | Support of Charitable Organization. | $50,000 |
| Planned Parenthood Washington, DC | Support of Charitable Organization. | $50,000 |
| Last Mile Health Boston, MA | Support of Charitable Organization. | $50,000 |
| World Food Program | Support of Charitable Organization. | $50,000 |
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Financial History
Multi-year comparison from IRS filings
The foundation’s filing type is Form 990-PF.
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2024 | $2,032,157 | $485,130 | $722,771 | $713,000 | 13 | $713,000 | $485,130 | $139,860 |
| 2023 | $2,271,388 | $257,255 | $1,001,193 | $985,000 | 20 | $985,000 | $252,534 | $138,334 |
| 2022 | $3,012,126 | $457,504 | $1,216,955 | $1,197,000 | 19 | $1,197,000 | $445,342 | $185,892 |
| 2021 | $3,750,634 | $583,483 | $1,002,356 | $990,000 | 21 | $990,000 | $578,739 | $259,827 |
| 2020 | $4,149,262 | $343,499 | $745,318 | $740,000 | 15 | — | $342,951 | $234,096 |
Under IRS private-foundation payout rules, SD Trombetta Foundation reported a distributable amount of $140K for 2024 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
The foundation’s own filing does not state a mission. Its 2024 grants included support for Cabrillo College Foundation, whose mission includes student scholarships, emergency financial support, mentoring, and support for academic programs and facilities. Other recipients’ stated missions include Last Mile Health’s work connecting remote communities with health services, Clean Air Task Force’s work on technology and policy for a zero-emissions planet, and Southern Poverty Law Center’s work advancing racial justice and human rights. Global Glimpse describes its work as providing global education, leadership, and service-learning experiences for students.
Grantmaking
In filing year 2024, the foundation made 13 grants totaling $713,000. Grants ranged from $3,000 to $200,000, with a median of $50,000.
The largest listed grant was $200,000 to Cabrillo College Foundation. Other notable 2024 grants included $75,000 to AAUW and $50,000 each to the American Red Cross, Clean Air Task Force, Give Well Top Charities Fund, Humane Farming Association, Southern Poverty Law Center, Planned Parenthood, Last Mile Health, and World Food Program. Global Glimpse received $30,000, and Parisi House received $5,000.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Anne Decker, Liza Reynolds, and Loren Reynolds as directors, and Diane Trombetta as president.
SD Trombetta Foundation is led by Diane Trombetta, President on every filing since 2020; none of the 4 officers listed in 2024 report compensation.
Officers on the 2024 filing
Diane Trombetta
President
On filings since 2020
1 hr/week
No compensation reported
Anne Decker
Director
On filings since 2020
1 hr/week
No compensation reported
Liza Reynolds
Director
On filings since 2020
1 hr/week
No compensation reported
Loren Reynolds
Director
On filings since 2020
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about SD Trombetta Foundation
How much does SD Trombetta Foundation give each year?
SD Trombetta Foundation gave $713K across 13 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $985K across 20 grants.
What is SD Trombetta Foundation's typical grant size?
SD Trombetta Foundation's median grant in 2024 was $50,000, and its average grant was $54,846, across 13 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from SD Trombetta Foundation that year got $3K on average.
Where does SD Trombetta Foundation give grants?
SD Trombetta Foundation gives mostly in California: 58% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest states were Massachusetts (14%) and District of Columbia (7%). The most frequent recipient cities were Boston, MA (2 grants), San Jose, CA (2 grants), Oakland, CA (2 grants) and Washington, DC (2 grants).
Does SD Trombetta Foundation give general operating support?
Not in 2024: none of the 13 grants with a stated purpose on SD Trombetta Foundation's 2024 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Support of Charitable Organization." (11 grants).
Who are SD Trombetta Foundation's largest grantees?
SD Trombetta Foundation's largest 2024 grantees include Cabrillo College Foundation ($200,000), AAUW ($75,000) and American Red Cross ($50,000), according to its 2024 IRS Form 990-PF. Together they received 46% of its itemized 2024 grant dollars.
How large is SD Trombetta Foundation?
SD Trombetta Foundation reported $2.0M in total assets on its 2024 IRS Form 990-PF. It paid out $713K in qualifying distributions that year, against a required minimum of $140K (roughly 5% of its investment assets).
What does SD Trombetta Foundation fund?
The foundation’s own filing does not state a mission. Its 2024 grants included support for Cabrillo College Foundation, whose mission includes student scholarships, emergency financial support, mentoring, and support for academic programs and facilities. See mission & focus areas ↑
How do I apply for a grant from SD Trombetta Foundation?
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is SD Trombetta Foundation's EIN?
SD Trombetta Foundation's EIN (Employer Identification Number) is 77-0342667. IRS Form 990 filing data is available on this page for 2020–2024.
Does SD Trombetta Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). SD Trombetta Foundation funder profile. GrantGraph. Retrieved October 17, 2026, from https://grantable.co/funders/sd-trombetta-foundation-morg_f8985e34778b4f8da3358ebd973326c7
BibTeX
@misc{grantable_770342667_2026,
author = {{Grantable}},
title = {{SD Trombetta Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/sd-trombetta-foundation-morg_f8985e34778b4f8da3358ebd973326c7},
note = {Accessed 2026-10-17. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from SD Trombetta Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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