Mount Rainier above forested ridges in Washington

Form 990-PFTax year 2025EIN 91-6577929

Thrasher Koffey Foundation

A private foundation in Seattle, WA. Its return for tax year 2025 lists 20 grants and $115,025 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

    $115,025

    Grants listed
    20
    Assets, end of year
    $1,999,487
  • Tax year 2024

    $108,750

    Grants listed
    21
    Assets, end of year
    $1,853,064
  • Tax year 2023

    $89,000

    Grants listed
    30
    Assets, end of year
    $1,875,444
  • Tax year 2022

    $105,950

    Grants listed
    30
    Assets, end of year
    $1,824,184
  • Tax year 2021

    $142,278

    Grants listed
    29
    Assets, end of year
    $2,030,739
  • Tax year 2020

    $167,800

    Grants listed
    22
    Assets, end of year
    $1,883,760
  • Tax year 2019

    $119,110

    Grants listed
    24
    Assets, end of year
    $1,917,017
  • Tax year 2018

    $115,349

    Grants listed
    27
    Assets, end of year
    $1,947,304

Grants paid in 2025

20 grants, largest first

As listed on the return.

  1. Montage Health FoundationMonterey, CA

    Healthcare

    $20,000
  2. Wood River Land TrustHailey, ID

    Land conservancy

    $20,000
  3. Fred Hutchinson Cancer CenterSeattle, WA

    Medical research

    $11,425
  4. Carmel Public Library FoundationCarmel, CA

    Education

    $10,000
  5. Hunger CoalitionBellevue, ID

    Food bank

    $10,000
  6. The ArgyrosKetchum, ID

    Community music theater

    $8,000
  7. Sun Valley Music FestivalSun Valley, ID

    Music education

    $6,000
  8. Preserve Community FoundationCarmel, CA

    Education

    $5,000
  9. Wood River YMCAKetchum, ID

    Recreation/education

    $5,000
  10. Arch Community HousingKetchum, ID

    Affordable housing

    $2,500
  11. Hebrew Home for the AgedBronx, NY

    Elder care

    $2,500
  12. Kuumbwa JazzSanta Cruz, CA

    Music education

    $2,500
  13. The AdvocatesHailey, ID

    Women's shelter

    $2,500
  14. The Space IdahoHailey, ID

    Education

    $2,500
  15. Wood River Women's FoundationKetchum, ID

    Community support

    $1,600
  16. Little Sisters FundKetchum, ID

    Education

    $1,500
  17. Wood River OrchestraKetchum, ID

    Music

    $1,500
  18. Desert Scholarship FoundationPalm Desert, CA

    Education

    $1,000
  19. Opportunity International NicaraguaFort Worth, TX

    Education

    $1,000
  20. Wings WorldquestNew York, NY

    Science education

    $500

Where the money goes

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

  1. Health3 grants $33,92556% of the total
  2. Arts and culture2 grants $14,00023% of the total
  3. Education3 grants $8,50014% of the total
  4. International aid2 grants $2,5004% of the total
  5. Philanthropy and grantmaking1 grant $1,6003% of the total

By State

Grants to organizations with a US address, latest year.

  1. Idaho12 grants $62,100
  2. California4 grants $37,500
  3. Washington1 grant $11,425
  4. New York2 grants $3,000
  5. Texas1 grant $1,000

Officers, directors and trustees

2 people as filed

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

  • Barbara ThrasherCO-TRUSTEE Hours 5Pay $0
  • Richard KoffeyCO-TRUSTEE Hours 5Pay $0

The return

More foundations

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

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  2. Pete and Wilma Olsen FoundationSeattle, WA 11 grants Preselected only $140,000 giving
  3. Koeplin Family FoundationSeattle, WA 7 grants Preselected only $92,000 giving
  4. Jackson S and March F Chao FoundationSeattle, WA 11 grants Accepts applications $150,000 giving
  5. Weinstein Family FoundationSeattle, WA 20 grants Preselected only $196,860 giving