Mount Rainier above forested ridges in Washington

Form 990-PFTax year 2025EIN 91-6449463

Cuyamaca Foundation

A private foundation in Seattle, WA. Its return for tax year 2025 lists 7 grants and $181,500 paid in grants.

Tax year 2025 (period ending Jun 30, 2026), 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

Accepts applications

The return gives an application contact and rules, as below.

Contact
Aaron Clark
4920 NE 65th St
Seattle, WA 98115
(206) 624-5244
Form and materials
Letter stating purpose of organization and requests
Deadlines
None
Restrictions
None

Assets and giving by year

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

    $181,500

    Grants listed
    7
    Assets, end of year
    $2,041,509
  • Tax year 2024

    $168,000

    Grants listed
    7
    Assets, end of year
    $1,561,816
  • Tax year 2023

    $126,000

    Grants listed
    7
    Assets, end of year
    $1,301,900
  • Tax year 2022

    $150,000

    Grants listed
    6
    Assets, end of year
    $1,012,747
  • Tax year 2021

    $126,000

    Grants listed
    5
    Assets, end of year
    $1,062,069
  • Tax year 2020

    $61,000

    Grants listed
    5
    Assets, end of year
    $1,086,218
  • Tax year 2019

    $107,000

    Grants listed
    7
    Assets, end of year
    $978,685

Grants paid in 2025

7 grants, largest first

As listed on the return.

  1. Black Farmers CollectiveSeattle, WA

    To further charitable goals of the organization

    $35,000
  2. Larry Campbell Memorial Scholarship Fund (seadoc Society UC Davis FNDN)Eighty Four, PA

    To further charitable goals of the organization

    $35,000
  3. Na'ah IllaheeSeattle, WA

    To further charitable goals of the organization

    $35,000
  4. Children of the Setting SunBellingham, WA

    To further charitable goals of the organization

    $35,000
  5. Yeehaw Indigenous Artist CollectiveSeattle, WA

    To further charitable goals of the organization

    $35,000
  6. Seattle Parks FoundationSeattle, WA

    To further charitable goals of the organization

    $5,000
  7. YMCASeattle, WA

    To further charitable goals of the organization

    $1,500

Where the money goes

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

  1. Science and technology1 grant $35,00088% of the total
  2. Sports and recreation1 grant $5,00012% of the total

By State

Grants to organizations with a US address, latest year.

  1. Washington6 grants $146,500
  2. Pennsylvania1 grant $35,000

Officers, directors and trustees

3 people as filed

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

  • Geoffrey M ClarkCO-CHAIR Hours 0.5Pay $0
  • Aaron ClarkCO-CHAIR Hours 0.75Pay $0
  • Mathew ClarkBOARD MEMBER Hours 0.5Pay $0

The return

More foundations

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

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