The California State Capitol

Form 990-PFTax year 2024EIN 20-5634026

Hamilton Family Foundation

A private foundation in Santa Rosa, CA. Its return for tax year 2024 lists 9 grants and $67,500 paid in grants.

Tax year 2024 (period ending Mar 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 2024

    $67,500

    Grants listed
    9
    Assets, end of year
    $1,172,687
  • Tax year 2023

    $60,000

    Grants listed
    6
    Assets, end of year
    $1,132,289
  • Tax year 2022

    $90,000

    Grants listed
    7
    Assets, end of year
    $1,001,244
  • Tax year 2021

    $100,000

    Grants listed
    8
    Assets, end of year
    $941,132
  • Tax year 2020

    $60,000

    Grants listed
    6
    Assets, end of year
    $953,604
  • Tax year 2019

    $55,000

    Grants listed
    8
    Assets, end of year
    $822,230
  • Tax year 2018

    $0

    Grants listed
    0
    Assets, end of year
    $932,135
  • Tax year 2017

    $46,000

    Grants listed
    7
    Assets, end of year
    $778,615

Grants paid in 2024

9 grants, largest first

As listed on the return.

  1. ACLU (american Civil Liberties Union)New York, NY

    General use

    $10,000
  2. Music Mends MindsLos Angeles, CA

    General use

    $10,000
  3. Giffords Law Center to Prevent Gun ViolenceSan Francisco, CA

    General use

    $7,500
  4. Partners for World HealthPortland, ME

    General use

    $7,500
  5. Planned Prenthood Fedwration of AmericaWashington, DC

    General use

    $7,500
  6. USA for UnhcrWashington, DC

    General use

    $7,500
  7. World Central KitchenWashington, DC

    General use

    $7,500
  8. National Public RadioWashington, DC

    General use

    $5,000
  9. The Trevor ProjectW Hollywood, CA

    General use

    $5,000

Where the money goes

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

  1. International aid2 grants $15,00046% of the total
  2. Civil rights2 grants $12,50038% of the total
  3. Arts and culture1 grant $5,00015% of the total

By State

Grants to organizations with a US address, latest year.

  1. California4 grants $27,500
  2. District of Columbia3 grants $22,500
  3. New York1 grant $10,000
  4. Maine1 grant $7,500

Officers, directors and trustees

5 people as filed

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

  • Susan BrinDIRECTOR, PRESIDENT & EXC DIRECTOR Hours 0.5Pay $0
  • Mark HamiltonDIRECTOR, CFO Hours 0.5Pay $0
  • Barbara TamborskiDIRECTOR Hours 0.25Pay $0
  • Marie HamiltonDIRECTOR, CHAIRPERSON & SECRETARY Hours 0.5Pay $0
  • Bernard HamiltonDIRECTOR Hours 0.25Pay $0

The return

More foundations

Similar foundations

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

  1. The Sedmak-Wooten Family FoundationSanta Rosa, CA 8 grants Preselected only $22,000 giving
  2. FMCK Lee FoundationMonte Sereno, CA 8 grants Preselected only $67,500 giving
  3. Skees Family FoundationBerkeley, CA 9 grants Preselected only $67,500 giving
  4. Surendra and Kala Jain FoundationPalos Verdes Peninsula, CA 9 grants Preselected only $67,731 giving
  5. The Milner Francini Family FoundationSan Jose, CA 37 grants Preselected only $66,920 giving