The California State Capitol

Form 990-PFTax year 2025EIN 77-0342667

SD Trombetta Foundation

A private foundation in Pleasanton, CA. Its return for tax year 2025 lists 18 grants and $775,000 paid in grants.

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests.

Assets and giving by year

8 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2025

    $775,000

    Grants listed
    18
    Assets, end of year
    $1,694,796
  • Tax year 2024

    $713,000

    Grants listed
    13
    Assets, end of year
    $2,032,157
  • Tax year 2023

    $985,000

    Grants listed
    20
    Assets, end of year
    $2,271,388
  • Tax year 2022

    $1,197,000

    Grants listed
    19
    Assets, end of year
    $3,012,126
  • Tax year 2021

    $990,000

    Grants listed
    21
    Assets, end of year
    $3,750,634
  • Tax year 2020

    $740,000

    Grants listed
    15
    Assets, end of year
    $4,149,262
  • Tax year 2019

    $605,000

    Grants listed
    14
    Assets, end of year
    $4,532,281
  • Tax year 2018

    $700,000

    Grants listed
    15
    Assets, end of year
    $4,387,270

Grants paid in 2025

18 grants, largest first

As listed on the return.

  1. Cabrillo College FoundationAptos, CA

    Basic operating expenses

    $200,000
  2. UNICEF USANew York, NY

    Basic operating expenses

    $75,000
  3. AAUWSan Jose, CA

    Basic operating expenses

    $60,000
  4. Givewell Top Charities FundOakland, CA

    Basic operating expenses

    $50,000
  5. Last Mile HealthBoston, MA

    Basic operating expenses

    $50,000
  6. Planned Parenthood FederationNew York, NY

    Basic operating expenses

    $50,000
  7. Southern Poverty Law CenterMontgomery, AL

    Basic operating expenses

    $50,000
  8. The Humane Farming AssociationSan Rafael, CA

    Basic operating expenses

    $50,000
  9. International Rescue Comiittee for AfghanistanNew York, NY

    Basic operating expenses

    $25,000
  10. Save the ChildrenFairfield, CT

    Basic operating expenses

    $25,000
  11. The Tibet FundNew York, NY

    Basic operating expenses

    $25,000
  12. Center for Science in the Public InterestWashington, DC

    Basic operating expenses

    $20,000
  13. Common Sense MediaSan Francisco, CA

    Basic operating expenses

    $20,000
  14. Global GivingWashington, DC

    Basic operating expenses

    $20,000
  15. National Alliance on Mental Illness (NAMI)Arlington, VA

    Basic operating expenses

    $20,000
  16. Global GlimpseOakland, CA

    Basic operating expenses

    $15,000
  17. Sandy Hook Promise FoundationNewtown, CT

    Basic operating expenses

    $15,000
  18. Parisi House on the HillSan Jose, CA

    Basic operating expenses

    $5,000

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Education2 grants $215,00039% of the total
  2. International aid3 grants $125,00023% of the total
  3. Crime and legal aid2 grants $65,00012% of the total
  4. Animals1 grant $50,0009% of the total
  5. Health1 grant $50,0009% of the total
  6. Arts and culture1 grant $20,0004% of the total
  7. 1 other causes1 grant $20,0004% of the total

By State

Grants to organizations with a US address, latest year.

  1. California7 grants $400,000
  2. New York4 grants $175,000
  3. Alabama1 grant $50,000
  4. Massachusetts1 grant $50,000
  5. Connecticut2 grants $40,000
  6. District of Columbia2 grants $40,000
  7. Virginia1 grant $20,000

Officers, directors and trustees

4 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Anne DeckerDIRECTOR Hours 1Pay $0
  • Diane TrombettaPRESIDENT Hours 1Pay $0
  • Liza ReynoldsDIRECTOR Hours 1Pay $0
  • Loren ReynoldsDIRECTOR Hours 1Pay $0

The return

More foundations

Similar foundations

Same main cause (education), giving between a quarter and four times this foundation’s where possible, nearby first.

  1. Brown Family Foundation for Education and the ArtsSacramento, CA 3 grants Preselected only $772,612 giving
  2. The Gretler FoundationSanta Barbara, CA 20 grants Preselected only $772,500 giving
  3. The O'Brien Family FoundationSan Mateo, CA 56 grants Preselected only $779,550 giving
  4. Kayne Anderson Capital Advisors FoundationLos Angeles, CA 252 grants Preselected only $770,238 giving
  5. The Jim Hicks Family FoundationSierra Madre, CA 28 grants Preselected only $769,500 giving