Mount Rainier above forested ridges in Washington
Foundation Lookup

Form 990-PFTax year 2024EIN 46-2216403

Treeline Foundation

A private foundation in Seattle, WA. Its return for tax year 2024 lists 44 grants and $1.1 million paid in grants.

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

Tax year 2024 (period ending Dec 31, 2024), 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

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

  • Tax year 2024

    $1,124,999

    Grants listed
    44
    Assets, end of year
    $750,377

  • Tax year 2023

    $1,206,999

    Grants listed
    45
    Assets, end of year
    $809,421

  • Tax year 2022

    $1,282,000

    Grants listed
    47
    Assets, end of year
    $917,978

  • Tax year 2021

    $1,507,000

    Grants listed
    40
    Assets, end of year
    $1,130,978

  • Tax year 2020

    $1,775,000

    Grants listed
    45
    Assets, end of year
    $1,130,040

  • Tax year 2019

    $1,471,000

    Grants listed
    44
    Assets, end of year
    $555,465

  • Tax year 2018

    $1,321,000

    Grants listed
    47
    Assets, end of year
    $924,453

Grants paid in 2024

44 grants, largest first

As listed on the return.

  1. YMCA of Greater SeattleSeattle, WA

    To provide general operating support and support of the social impact center

    $110,000
  2. Sightline InstituteSeattle, WA

    To support efforts to address climate change

    $100,000
  3. Washington Trails AssociationSeattle, WA

    General operating support, with special interest in olt program

    $100,000
  4. 350ORGWashington, DC

    To provide general operating support

    $75,000
  5. The Sierra Club FoundationOakland, CA

    To support of the outdoors for all program

    $75,000
  6. Northwest Abortion Access FundPortland, OR

    To provide general operating support

    $65,000
  7. ForterraSeattle, WA

    To provide general operating support

    $50,000
  8. Benefits Law CenterSeattle, WA

    To provide general operating support

    $25,000
  9. EarthgenSeattle, WA

    To provide general operating support

    $25,000
  10. Fresh TracksWashington, DC

    To provide general operating support

    $25,000
  11. Seattle Shakespeare CompanySeattle, WA

    To provide general operating support

    $25,000
  12. The Trust for Public LandLos Angeles, CA

    General operating support in TPL'S seattle region

    $25,000
  13. ZenoSeattle, WA

    To provide general operating support

    $25,000
  14. Casa LatinaSeattle, WA

    To provide general operating support

    $20,000
  15. DescSeattle, WA

    To provide general operating support

    $20,000
  16. IslandwoodBainbridge Is, WA

    To provide general operating support

    $20,000
  17. Mary's PlaceSeattle, WA

    To provide general operating support

    $20,000
  18. Pacific Science CenterSeattle, WA

    To provide general operating support

    $20,000
  19. Plymouth Housing GroupSeattle, WA

    To provide general operating support

    $20,000
  20. Solid GroundSeattle, WA

    To provide general operating support

    $20,000
  21. YouthcareEverett, WA

    To provide general operating support

    $20,000
  22. YWCA Seattle King SnohomishSeattle, WA

    To support of women experiencing homelessness

    $20,000
  23. National Audubon SocietyNew York, NY

    To support of audubon washingtons seward park center

    $20,000
  24. American Alpine ClubGolden, CO

    General operating support, with special interest in reaching younger and more diverse climbers

    $15,000
  25. The Vera ProjectSeattle, WA

    To provide general operating support

    $15,000
  26. A Contemporary TheatreSeattle, WA

    To provide general operating support

    $10,000
  27. Crisis Text LineNew York, NY

    To provide general operating support

    $10,000
  28. Define AmericanLos Angeles, CA

    To provide general operating support

    $10,000
  29. Northwest ChoirsSeattle, WA

    To provide general operating support

    $10,000
  30. Northwest Film ForumSeattle, WA

    To support the ultimate citizens video

    $10,000
  31. Northwest Outward BoundPortland, OR

    To providing general operating support of programming in mazama, wa

    $10,000
  32. Rainier Valley CorpsSeattle, WA

    To support the ageup program

    $10,000
  33. Sawhorse RevolutionSeattle, WA

    To provide general operating support

    $10,000
  34. Seattle Girls SchoolSeattle, WA

    To provide general operating support

    $10,000
  35. Seattle Repertory TheatreSeattle, WA

    To support of the public works program

    $10,000
  36. Seattle SymphonySeattle, WA

    To provide general operating support

    $10,000
  37. The 5 Gyres InstituteSanta Monica, CA

    To provide general operating support

    $10,000
  38. The MountaineersSeattle, WA

    To support the mountain workshops program

    $10,000
  39. The Mountains to Sound Greenway TrustSeattle, WA

    To provide general operating support

    $10,000
  40. Totem StarSeattle, WA

    To provide general operating support

    $10,000
  41. Birds Connect SeattleSeattle, WA

    To support of youth educational programming

    $10,000
  42. Catawba CollegeSalisbury, NC

    In support of gals program

    $3,333
  43. University of ArizonaTucson, AZ

    In support of gals program

    $3,333
  44. New Mexico State UniversityLas Cruces, NM

    To provide general operating support

    $3,333

Where the money goes

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

  1. Environment9 grants $390,00061% of the total
  2. Arts and culture6 grants $75,00012% of the total
  3. Education5 grants $68,33311% of the total
  4. Human services3 grants $55,0009% of the total
  5. Housing and shelter1 grant $20,0003% of the total
  6. Community development1 grant $10,0002% of the total
  7. 2 other causes2 grants $20,0003% of the total

By State

Grants to organizations with a US address, latest year.

  1. Washington30 grants $775,000
  2. California4 grants $120,000
  3. Massachusetts1 grant $75,000
  4. Oregon2 grants $75,000
  5. New York2 grants $30,000
  6. District of Columbia1 grant $25,000
  7. Colorado1 grant $15,000
  8. Arizona1 grant $3,333
  9. North Carolina1 grant $3,333
  10. New Mexico1 grant $3,333

Officers, directors and trustees

9 people as filed

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

  • Sarah MernerDIRECTOR/OFFICER Hours 4Pay $0
  • Craig McKibbenDIRECTOR/OFFICER Hours 4Pay $0
  • Andrew McKibbenDIRECTOR Hours 4Pay $0
  • Jasmine GervaisDIRECTOR Hours 4Pay $0
  • Margaret McKibbenDIRECTOR Hours 4Pay $0
  • Leslie Merner DukeDIRECTOR Hours 4Pay $0
  • John GouldDIRECTOR Hours 4Pay $0
  • Carol DriverDIRECTOR Hours 4Pay $0
  • Tyler ButterworthDIRECTOR Hours 4Pay $0

The return

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