A river running through a deep pine forest valley

Cause EnvironmentState Washington253 funders

Foundations that fund environment in Washington

253 private foundations based in Washington with a return in the last two years gave $80.2 million to environment organizations in 954 grants. The median grant was $15,000, and 62 of these foundations accept applications.

Foundations with a return in the last two years, each by its latest return (tax years 2024 to 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

Ranked by giving to environment

Top 50

Grants in each foundation’s latest return to organizations whose IRS category is environment.

  1. Gates FoundationSeattle, WA · tax year 2024 23 grants Accepts applications $26,262,997 to environment
  2. Pivotal Philanthropies FoundationRedmond, WA · tax year 2024 7 grants Preselected only $10,550,000 to environment
  3. Wilburforce FoundationSeattle, WA · tax year 2024 79 grants Accepts applications $6,687,500 to environment
  4. Allen Family PhilanthropiesSeattle, WA · tax year 2024 8 grants Preselected only $3,928,202 to environment
  5. M J Murdock Charitable TrustVancouver, WA · tax year 2024 38 grants Accepts applications $3,218,174 to environment
  6. The Satterberg Foundation IncSeattle, WA · tax year 2024 21 grants Accepts applications $2,723,333 to environment
  7. Stolte Family FoundationSeattle, WA · tax year 2024 28 grants Preselected only $2,207,760 to environment
  8. The Aldarra FoundationSeattle, WA · tax year 2024 1 grant Preselected only $2,200,000 to environment
  9. Angela J Bowen Conservancy FoundationOlympia, WA · tax year 2025 2 grants Preselected only $2,177,000 to environment
  10. The Holocene FoundationSeattle, WA · tax year 2024 15 grants Preselected only $1,800,000 to environment
  11. Grousemont FoundationSeattle, WA · tax year 2024 13 grants Preselected only $1,082,500 to environment
  12. The Bullitt FoundationSeattle, WA · tax year 2024 16 grants Preselected only $1,056,093 to environment
  13. The Lematta FoundationSeattle, WA · tax year 2025 1 grant Accepts applications $1,010,000 to environment
  14. 444S FoundationBellevue, WA · tax year 2024 11 grants Preselected only $856,375 to environment
  15. The Moraine FoundationSeattle, WA · tax year 2025 1 grant Preselected only $750,000 to environment
  16. Kaphan FoundationSeattle, WA · tax year 2024 2 grants Preselected only $625,862 to environment
  17. The Burning FoundationSeattle, WA · tax year 2025 30 grants Accepts applications $616,000 to environment
  18. Ken Birdwell Foundation (DBA Magic Cabinet)Bellevue, WA · tax year 2024 18 grants Preselected only $610,067 to environment
  19. Laidir FoundationSeattle, WA · tax year 2024 1 grant Preselected only $525,000 to environment
  20. Laird Norton Family FoundationSeattle, WA · tax year 2024 24 grants Preselected only $512,500 to environment
  21. The Russell Family FoundationGig Harbor, WA · tax year 2024 22 grants Accepts applications $478,825 to environment
  22. Konzen Family FoundationIssaquah, WA · tax year 2025 6 grants Preselected only $455,000 to environment
  23. The Anders FoundationBellingham, WA · tax year 2025 4 grants Preselected only $430,400 to environment
  24. Raikes FoundationSeattle, WA · tax year 2024 7 grants Preselected only $412,110 to environment
  25. Wiancko Charitable Foundation IncSeattle, WA · tax year 2024 10 grants Preselected only $405,000 to environment
  26. Bernier McCaw FoundationMedina, WA · tax year 2025 1 grant Preselected only $400,000 to environment
  27. Treeline FoundationSeattle, WA · tax year 2024 9 grants Preselected only $390,000 to environment
  28. The Norcliffe FoundationSeattle, WA · tax year 2024 17 grants Accepts applications $364,260 to environment
  29. Campion FoundationSeattle, WA · tax year 2024 8 grants Preselected only $357,000 to environment
  30. Marguerite Casey FoundationSeattle, WA · tax year 2024 3 grants Preselected only $339,000 to environment
  31. The Martin Fabert FoundationSeattle, WA · tax year 2024 9 grants Preselected only $277,500 to environment
  32. Tew FoundationSeattle, WA · tax year 2024 3 grants Preselected only $269,000 to environment
  33. CO2 FoundationSeattle, WA · tax year 2025 5 grants Accepts applications $266,600 to environment
  34. The Northwest Fund for the EnvironmentSeattle, WA · tax year 2025 26 grants Accepts applications $243,400 to environment
  35. The Hugh and Jane Ferguson FoundationSeattle, WA · tax year 2025 20 grants Accepts applications $211,000 to environment
  36. McKinstry Charitable FoundationSeattle, WA · tax year 2025 23 grants Preselected only $155,300 to environment
  37. Sunbridge FoundationSeattle, WA · tax year 2024 3 grants Preselected only $151,000 to environment
  38. Paulus Family FoundationMount Vernon, WA · tax year 2024 1 grant Preselected only $150,000 to environment
  39. Gary E Milgard Family Foundation - MarkTacoma, WA · tax year 2024 4 grants Accepts applications $137,000 to environment
  40. Folley Family FoundationSeattle, WA · tax year 2024 3 grants Preselected only $135,000 to environment
  41. Rangeland FoundationBellevue, WA · tax year 2024 4 grants Preselected only $135,000 to environment
  42. Pendleton and Elisabeth Carey Miller Charitable FoundationSeattle, WA · tax year 2025 6 grants Accepts applications $130,650 to environment
  43. Juniper FoundationSeattle, WA · tax year 2025 11 grants Preselected only $130,000 to environment
  44. Brooks FoundationSeattle, WA · tax year 2025 2 grants Preselected only $125,000 to environment
  45. Charlotte Y Martin Foundation-ImaSeattle, WA · tax year 2024 7 grants Accepts applications $115,000 to environment
  46. The Darby FoundationSeattle, WA · tax year 2025 3 grants Preselected only $115,000 to environment
  47. Scan Design Foundation by Inger & Jens BruunSeattle, WA · tax year 2024 2 grants Preselected only $110,310 to environment
  48. David and Patricia Giuliani Family FoundationSeattle, WA · tax year 2024 3 grants Accepts applications $110,000 to environment
  49. Alice C Tyler Perpetual TrustSeattle, WA · tax year 2024 2 grants Preselected only $110,000 to environment
  50. William I Smith Family FoundationSeattle, WA · tax year 2025 1 grant Preselected only $100,000 to environment

Open to applications

25 foundations

The return gives an application contact and does not check the preselected-only box.

  1. Gates FoundationSeattle, WA · tax year 2024 23 grants Accepts applications $26,262,997 to environment
  2. Wilburforce FoundationSeattle, WA · tax year 2024 79 grants Accepts applications $6,687,500 to environment
  3. M J Murdock Charitable TrustVancouver, WA · tax year 2024 38 grants Accepts applications $3,218,174 to environment
  4. The Satterberg Foundation IncSeattle, WA · tax year 2024 21 grants Accepts applications $2,723,333 to environment
  5. The Lematta FoundationSeattle, WA · tax year 2025 1 grant Accepts applications $1,010,000 to environment
  6. The Burning FoundationSeattle, WA · tax year 2025 30 grants Accepts applications $616,000 to environment
  7. The Russell Family FoundationGig Harbor, WA · tax year 2024 22 grants Accepts applications $478,825 to environment
  8. The Norcliffe FoundationSeattle, WA · tax year 2024 17 grants Accepts applications $364,260 to environment
  9. CO2 FoundationSeattle, WA · tax year 2025 5 grants Accepts applications $266,600 to environment
  10. The Northwest Fund for the EnvironmentSeattle, WA · tax year 2025 26 grants Accepts applications $243,400 to environment
  11. The Hugh and Jane Ferguson FoundationSeattle, WA · tax year 2025 20 grants Accepts applications $211,000 to environment
  12. Gary E Milgard Family Foundation - MarkTacoma, WA · tax year 2024 4 grants Accepts applications $137,000 to environment
  13. Pendleton and Elisabeth Carey Miller Charitable FoundationSeattle, WA · tax year 2025 6 grants Accepts applications $130,650 to environment
  14. Charlotte Y Martin Foundation-ImaSeattle, WA · tax year 2024 7 grants Accepts applications $115,000 to environment
  15. David and Patricia Giuliani Family FoundationSeattle, WA · tax year 2024 3 grants Accepts applications $110,000 to environment
  16. Stewardship FoundationTacoma, WA · tax year 2024 1 grant Accepts applications $100,000 to environment
  17. Names Family FoundationFircrest, WA · tax year 2024 8 grants Accepts applications $72,000 to environment
  18. Gow Family FoundationBellevue, WA · tax year 2024 2 grants Accepts applications $70,000 to environment
  19. Vista Hermosa FoundationPasco, WA · tax year 2024 1 grant Accepts applications $70,000 to environment
  20. The Dudley FoundationBellingham, WA · tax year 2025 4 grants Accepts applications $63,500 to environment
  21. The Avista FoundationSpokane, WA · tax year 2025 15 grants Accepts applications $61,211 to environment
  22. Johnston-Fix FoundationSpokane, WA · tax year 2025 2 grants Accepts applications $55,000 to environment
  23. Ben B Cheney Foundation IncTacoma, WA · tax year 2024 2 grants Accepts applications $45,000 to environment
  24. Wheeler FoundationVancouver, WA · tax year 2025 3 grants Accepts applications $42,000 to environment
  25. Kind Heart Free Spirit FoundationWashougal, WA · tax year 2025 2 grants Accepts applications $40,000 to environment