Mount Rainier above forested ridges in Washington
Foundation Lookup

Form 990-PFTax year 2025EIN 91-1774695

Sos Foundation

A private foundation in Seattle, WA. Its return for tax year 2025 lists 56 grants and $333,307 paid in grants.

See which foundations fund work like yours Matching by cause, place and grant size

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

    $333,307

    Grants listed
    56
    Assets, end of year
    $1,437,738

  • Tax year 2024

    $211,524

    Grants listed
    37
    Assets, end of year
    $1,336,048

  • Tax year 2023

    $185,858

    Grants listed
    42
    Assets, end of year
    $1,585,330

  • Tax year 2022

    $88,772

    Grants listed
    In an attachment
    Assets, end of year
    $917,856

  • Tax year 2021

    $171,815

    Grants listed
    In an attachment
    Assets, end of year
    $964,900

  • Tax year 2020

    $125,975

    Grants listed
    In an attachment
    Assets, end of year
    $1,178,516

  • Tax year 2019

    $179,472

    Grants listed
    In an attachment
    Assets, end of year
    $618,157

  • Tax year 2018

    $114,197

    Grants listed
    In an attachment
    Assets, end of year
    $596,456

Grants paid in 2025

56 grants, largest first

As listed on the return.

  1. Seattle UniversitySeattle, WA

    Charitable gift, scholarships

    $110,800
  2. University of WashingtonSeattle, WA

    Charitable gift, scholarship

    $47,000
  3. Teens in Public ServiceSeattle, WA

    Charitable gift

    $38,000
  4. Seattle Preparatory SchoolSeattle, WA

    Charitable gift, scholarship

    $25,000
  5. Fred Hutch Cancer ResearchSeattle, WA

    Charitable gift

    $10,500
  6. Common Threads ProjectNew York, NY

    Charitable gift

    $10,000
  7. University of Washington Medicine AdvancementSeattle, WA

    Charitable gift, scholarship

    $10,000
  8. We Heart SeattleSeattle, WA

    Charitable gift

    $10,000
  9. Trust A Girl AfricaLira, Uganda

    Charitable gift

    $9,028
  10. Rainier ScholarsSeattle, WA

    Charitable gift

    $5,000
  11. Washington Policy CenterSeattle, WA

    Charitable gift

    $5,000
  12. Swedish FoundationSeattle, WA

    Charitable gift

    $5,000
  13. CPA FoundationHouston, TX

    Charitable gift

    $5,000
  14. Orcas CenterEastsound, WA

    Charitable gift

    $3,450
  15. St Jude's Children's Research HospitalMemphis, TN

    Charitable gift

    $3,000
  16. Rambler ArtsIndianola, WA

    Charitable gift

    $2,522
  17. Community HomesBellevue, WA

    Charitable gift

    $2,500
  18. Goals HaitiDes Moines, WA

    Charitable gift

    $2,500
  19. Mother Mentors of Whidbey IslandLangley, WA

    Charitable gift

    $2,000
  20. Cristo Rey JesuitSeattle, WA

    Charitable gift

    $2,000
  21. University District Food BankSeattle, WA

    Charitable gift

    $2,000
  22. Wa Innocence ProjectSeattle, WA

    Charitable gift

    $2,000
  23. Achon Uganda Children's FundPortland, OR

    Charitable gift

    $1,000
  24. LOOK2JUSTICETacoma, WA

    Charitable gift

    $1,000
  25. Orcas Island Film FestivalEastsound, WA

    Charitable gift

    $1,000
  26. Samamusic ArtSeattle, WA

    Charitable gift

    $1,000
  27. American Cancer SocietyHagerstown, MD

    Charitable gift

    $1,000
  28. Desert Community FoundationPalm Desert, CA

    Charitable gift, scholarship

    $1,000
  29. Doctors Without BordersNew York, NY

    Charitable gift

    $1,000
  30. Project HawaiiKeaau, HI

    Charitable gift

    $1,000
  31. Sand Point Arts and Cultural Exchange (space)Seattle, WA

    Charitable gift

    $1,000
  32. San Juan Island Comm FoundationFriday Harbor, WA

    Charitable gift

    $1,000
  33. Orcas Island Food BankEastsound, WA

    Charitable gift

    $750
  34. Forest Ridge School of the Sacred HeartBellevue, WA

    Charitable gift

    $526
  35. Orcas Island Community FoundationEastsound, WA

    Charitable gift

    $500
  36. Smiles ForeverSeattle, WA

    Charitable gift

    $500
  37. Wellspring Family ServicesSeattle, WA

    Charitable gift

    $500
  38. Friends of PaccTucson, AZ

    Charitable gift

    $500
  39. Issaquah History MuseumsIssaquah, WA

    Charitable gift

    $500
  40. Northwest HarvestSeattle, WA

    Charitable gift

    $500
  41. Pediatric Brain Tumor FoundationWinston Salem, NC

    Charitable gift

    $500
  42. San Juan Preservation TrustFriday Harbor, WA

    Charitable gift

    $500
  43. The Church of Living WatersSnoqualmie, WA

    Charitable gift

    $500
  44. Southwest Wildlife Conservation CenterScottsdale, AZ

    Charitable gift

    $500
  45. World Central KitchenWashington, DC

    Charitable gift

    $500
  46. World Wildlife FundWashington, DC

    Charitable gift

    $500
  47. Friends of Felines Rescue CenterDefinance, OH

    Charitable gift

    $500
  48. Jane Goodall InstitueWashington, DC

    Charitable gift

    $500
  49. Orcas Island Sexual Health AllianceEastsound, WA

    Charitable gift

    $500
  50. Sparrow Clubs USAMedford, OR

    Charitable gift

    $500
  51. Wounded Warrier ProjectTacoma, WA

    Charitable gift

    $500
  52. Friedreich's Ataxia Research AllianceDowningtown, PA

    Charitable gift

    $309
  53. The Rotary FoundationEvanston, IL

    Charitable gift

    $259
  54. Orcas Island Animal ShelterEastsound, WA

    Charitable gift

    $250
  55. Blue Star FamilyEncinitas, CA

    Charitable gift

    $213
  56. Helping LinkRenton, WA

    Charitable gift

    $200

Where the money goes

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

  1. Jobs and employment1 grant $47,00034% of the total
  2. Youth development2 grants $39,00029% of the total
  3. International aid4 grants $12,5009% of the total
  4. Community development1 grant $10,0007% of the total
  5. Arts and culture3 grants $6,1725% of the total
  6. Education2 grants $5,5004% of the total
  7. 8 other causes12 grants $16,30912% of the total

By State

Grants to organizations with a US address, latest year.

  1. Washington36 grants $296,498
  2. New York2 grants $11,000
  3. Texas1 grant $5,000
  4. Tennessee1 grant $3,000
  5. District of Columbia3 grants $1,500
  6. Oregon2 grants $1,500
  7. California2 grants $1,213
  8. Arizona2 grants $1,000
  9. Hawaii1 grant $1,000
  10. Maryland1 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.

  • Joseph L BrothertonDIRECTOR Hours 1Pay $0
  • Maureen BrothertonDIRECTOR Hours 1Pay $0

The return

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