The Maroon Bells above a meadow and lake near Aspen, Colorado
Foundation Lookup

Form 990-PFTax year 2025EIN 74-2405298

Buck Foundation

A private foundation in Evergreen, CO. Its return for tax year 2025 lists 36 grants and $667,376 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

Accepts applications

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

Contact
Erika Church
The Buck Foundation 27877 Lupine, Drive
Denver, CO 80439
(303) 725-5567
[email protected]
Form and materials
Applicants are requested to complete an online letter of inquiry at www.thebuckfoundation.org. The submittable grant application form is emailed by the executive director to qualified applicants.
Deadlines
Letter of interest deadline is january 15th. Full proposals due march 15th.
Restrictions
Applicants must be 501(c)(3) tax -exempt organizations or non-governmental agencies. Applications from individuals, endowment funds, or capital campaigns will not be considered. Preference is given to charitable organizations in the denver, co. Metropolitan area.

Assets and giving by year

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

  • Tax year 2025

    $667,376

    Grants listed
    36
    Assets, end of year
    $11,859,174

  • Tax year 2024

    $480,000

    Grants listed
    32
    Assets, end of year
    $11,385,523

  • Tax year 2023

    $425,190

    Grants listed
    34
    Assets, end of year
    $10,461,100

  • Tax year 2022

    $495,000

    Grants listed
    34
    Assets, end of year
    $10,762,220

  • Tax year 2021

    $575,167

    Grants listed
    34
    Assets, end of year
    $11,054,847

  • Tax year 2020

    $481,214

    Grants listed
    43
    Assets, end of year
    $11,178,485

  • Tax year 2019

    $365,525

    Grants listed
    30
    Assets, end of year
    $10,389,152

Grants paid in 2025

36 grants, largest first

As listed on the return.

  1. American Friends Service CommitteePhiladelphia, PA

    Colorado immigrant rights program

    $35,000
  2. 350 ColoradoBoulder, CO

    General operating support

    $30,760
  3. Colorado Nonprofit Association - Nonprofit Legal ResouresDenver, CO

    General operating support

    $30,000
  4. Colorado Nonprofit Association - Agrivoltaic Learning CenterDenver, CO

    General operating support

    $30,000
  5. So All May Eat DenverDenver, CO

    General operating support

    $25,736
  6. 9TO5 ColoradoMilwaukee, WI

    General operating support

    $25,000
  7. CultivandoEastlake, CO

    General operating support

    $25,000
  8. Housekeys Action Network DenverDenver, CO

    Western regional advocacy project

    $25,000
  9. Lock the GateHelensvale QLD, Australia

    General operating support

    $25,000
  10. Street FraternityDenver, CO

    General operating support

    $25,000
  11. Street Side MedicsStrawberry Hills NSW, Australia

    General operating support

    $25,000
  12. Buildstrong AcademyAurora, CO

    General operating support

    $25,000
  13. Denver Food RescueDenver, CO

    General operating support

    $22,880
  14. Bluegreen AllianceMinneapolis, MN

    General operating support

    $20,000
  15. Cossa InsitituteDurango, CO

    Rural climate ambassador program

    $20,000
  16. Grid Alternatives ColoradoDenver, CO

    General operating support

    $20,000
  17. Newcomers Fund Co the Rose Community FoundationDenver, CO

    General operating support

    $20,000
  18. Denver Metro Tenants UnionLakewood, CO

    General operating support

    $20,000
  19. Green Light AmericaWashington, DC

    General operating support

    $20,000
  20. Groundwork DenverDenver, CO

    General operating support

    $20,000
  21. Lyra ColoradoDenver, CO

    General operating support

    $20,000
  22. Rocky Mountain Immigrant Advocacy NetworkWestminster, CO

    General operating support

    $20,000
  23. High Country Conservation CenterFrisco, CO

    General operating support

    $15,000
  24. La Puente Home IncAlamosa, CO

    General operating support

    $15,000
  25. Quivira CoalitionSanta Fe, NM

    General operating support

    $15,000
  26. The Alliance for Collective ActionDenver, CO

    General operating support

    $15,000
  27. Asylum Seekers CentreNewtown, Australia

    General operating support

    $15,000
  28. Urban SeedsEvansville, IN

    General operating support

    $14,000
  29. Rocky Mountain Employee Ownership CenterDenver, CO

    Colorado drivers co-op program

    $10,000
  30. 350 MontanaMissoula, MT

    General operating support

    $10,000
  31. Colorado Nonprofit Association - Agrivoltaic Learning CenterDenver, CO

    General operating support

    $10,000
  32. Conservation Colorado Educational FundDenver, CO

    General operating support

    $10,000
  33. Ajl Foundation - as You SowDenver, CO

    General operating support

    $5,000
  34. Southern Arizona Adaptive SportsTucson, AZ

    General operating support

    $2,000
  35. Village Exchange CenterAurora, CO

    General operating support

    $1,000
  36. Western Regional Advocacy Project (wrap)San Francisco, CA

    General operating support

    $1,000

Where the money goes

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

  1. Environment8 grants $139,76046% of the total
  2. Community development3 grants $55,00018% of the total
  3. Crime and legal aid1 grant $25,0008% of the total
  4. Food and agriculture1 grant $22,8807% of the total
  5. Civil rights1 grant $20,0007% of the total
  6. Education1 grant $20,0007% of the total
  7. 3 other causes3 grants $23,0008% of the total

By State

Grants to organizations with a US address, latest year.

  1. Colorado23 grants $440,376
  2. Pennsylvania1 grant $35,000
  3. Wisconsin1 grant $25,000
  4. California2 grants $21,000
  5. District of Columbia1 grant $20,000
  6. Minnesota1 grant $20,000
  7. New Mexico1 grant $15,000
  8. Indiana1 grant $14,000
  9. Montana1 grant $10,000
  10. Arizona1 grant $2,000

Officers, directors and trustees

13 people as filed

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

  • Carol DettmannVICE-CHAIR & CHAIR OF GRANTS COMMITTEE Hours 1Pay $0
  • Nina Bambina BuckDIRECTOR Hours 1Pay $0
  • Christopher BuckCHAIR Hours 2Pay $33,372
  • Andrew BuckTREASURER & CHAIR OF FINANCE COMMITTEE Hours 1Pay $0
  • Nory BuckDIRECTOR Hours 1Pay $0
  • Nicholas DettmannDIRECTOR & CHAIR, GOVERNANCE COMMITTEE Hours 1Pay $0
  • Drew TrusloveDIRECTOR Hours 1Pay $0
  • Jessica DettmannSECRETARY Hours 1Pay $0
  • Zoe BuckDIRECTOR & CHAIR OF G4 COMMITTEE Hours 1Pay $0
  • Douglas BuckDIRECTOR Hours 1Pay $0
  • Erika ChurchEXECUTIVE DIRECTOR Hours 36Pay $110,418
  • Isobel BuckDIRECTOR Hours 1Pay $0
  • Noah ZanvilleDIRECTOR Hours 1Pay $0

The return

More foundations

Similar foundations

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

  1. Alchemy Charitable FoundationDenver, CO 6 grants Accepts applications $794,000 giving
  2. Eleanor and Henry Hitchcock Charitable FoundationCreede, CO 14 grants Preselected only $541,305 giving
  3. Aspen Business Center FoundationAspen, CO 153 grants Preselected only $941,516 giving
  4. Madrono FoundationDenver, CO 26 grants Preselected only $1,002,000 giving
  5. Innovo FoundationBoulder, CO 18 grants Preselected only $435,844 giving