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Private foundations Tucson, AZtax years 2024 to 2025

Private foundations in Tucson, AZ

254 private foundations based in Tucson, AZ filed a 990-PF in the last two years. In their latest returns they gave $73.6 million in 2,215 grants, and 66 say they accept applications.

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

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.

Largest givers

By grants paid, latest return
  1. Frederick Gardner Cottrell FoundationTucson, AZ · tax year 2024 39 grants Preselected only $9,611,804 giving
  2. Research Corporation dba Research Corporation for Science AdvancementTucson, AZ · tax year 2024 165 grants Accepts applications $7,964,645 giving
  3. Ruth McC Tankersley Charitable FndTucson, AZ · tax year 2025 43 grants Accepts applications $4,671,000 giving
  4. Kautz Family FoundationTucson, AZ · tax year 2024 58 grants Preselected only $4,231,062 giving
  5. The Wyant Foundation TrustTucson, AZ · tax year 2024 2 grants Preselected only $4,000,000 giving
  6. Thomas R Brown Family Private FoundationTucson, AZ · tax year 2024 16 grants Preselected only $2,767,098 giving
  7. Armstrong McDonald FoundationTucson, AZ · tax year 2025 21 grants Accepts applications $2,733,301 giving
  8. Connie Hillman Family FoundationTucson, AZ · tax year 2024 10 grants Accepts applications $2,708,453 giving
  9. The Side By Side FoundationTucson, AZ · tax year 2024 1 grant Preselected only $1,855,196 giving
  10. Lapan Memorial Sunshine Foundation IncTucson, AZ · tax year 2024 35 grants Accepts applications $1,831,419 giving
  11. The HS Lopez Family FoundationTucson, AZ · tax year 2024 86 grants Accepts applications $1,800,010 giving
  12. Marshall FoundationTucson, AZ · tax year 2024 36 grants Accepts applications $1,736,914 giving
  13. Margaret E Mooney FoundationTucson, AZ · tax year 2025 7 grants Accepts applications $1,658,500 giving
  14. Potoff Private PhilanthropyTucson, AZ · tax year 2025 5 grants Accepts applications $1,592,000 giving
  15. Ginny L Clements Charitable TrustTucson, AZ · tax year 2025 42 grants Preselected only $992,945 giving
  16. A Frederick Banfield Charitable TrustTucson, AZ · tax year 2024 25 grants Preselected only $964,765 giving
  17. Dorothy Harmsen and Bill Harmsen Sr Charitable FoundationTucson, AZ · tax year 2025 3 grants Preselected only $860,000 giving
  18. Victor W Kramer Charitable Trust 005033Tucson, AZ · tax year 2024 12 grants Preselected only $824,466 giving
  19. William and Mary Ross FoundationTucson, AZ · tax year 2024 15 grants Preselected only $775,220 giving
  20. Stanley M Reinhaus Family FoundationTucson, AZ · tax year 2024 31 grants Accepts applications $752,870 giving
  21. The Weil FoundationTucson, AZ · tax year 2024 11 grants Preselected only $747,500 giving
  22. The George Mason Green and Lois C Green FoundationTucson, AZ · tax year 2024 4 grants Accepts applications $667,255 giving
  23. SVL FoundationTucson, AZ · tax year 2024 3 grants Preselected only $610,000 giving
  24. J & C Davis Family Foundation IncTucson, AZ · tax year 2025 3 grants Preselected only $580,000 giving
  25. Click Family FoundationTucson, AZ · tax year 2025 29 grants Accepts applications $544,817 giving

Foundations that accept applications

Largest first

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

  1. Research Corporation dba Research Corporation for Science AdvancementTucson, AZ · tax year 2024 165 grants Accepts applications $7,964,645 giving
  2. Ruth McC Tankersley Charitable FndTucson, AZ · tax year 2025 43 grants Accepts applications $4,671,000 giving
  3. Armstrong McDonald FoundationTucson, AZ · tax year 2025 21 grants Accepts applications $2,733,301 giving
  4. Connie Hillman Family FoundationTucson, AZ · tax year 2024 10 grants Accepts applications $2,708,453 giving
  5. Lapan Memorial Sunshine Foundation IncTucson, AZ · tax year 2024 35 grants Accepts applications $1,831,419 giving
  6. The HS Lopez Family FoundationTucson, AZ · tax year 2024 86 grants Accepts applications $1,800,010 giving
  7. Marshall FoundationTucson, AZ · tax year 2024 36 grants Accepts applications $1,736,914 giving
  8. Margaret E Mooney FoundationTucson, AZ · tax year 2025 7 grants Accepts applications $1,658,500 giving
  9. Potoff Private PhilanthropyTucson, AZ · tax year 2025 5 grants Accepts applications $1,592,000 giving
  10. Stanley M Reinhaus Family FoundationTucson, AZ · tax year 2024 31 grants Accepts applications $752,870 giving
  11. The George Mason Green and Lois C Green FoundationTucson, AZ · tax year 2024 4 grants Accepts applications $667,255 giving
  12. Click Family FoundationTucson, AZ · tax year 2025 29 grants Accepts applications $544,817 giving
  13. Fred & Christine Armstrong FoundationTucson, AZ · tax year 2024 43 grants Accepts applications $452,000 giving
  14. Ross and Patty McCallister FoundationTucson, AZ · tax year 2024 28 grants Accepts applications $451,000 giving
  15. The James and Pamela Griffith Family FoundationTucson, AZ · tax year 2025 1 grant Accepts applications $450,000 giving
  16. Declaration of Trust of the Joseph and Mary Cacioppo FoundationTucson, AZ · tax year 2024 7 grants Accepts applications $334,544 giving
  17. Zuckerman Family FoundationTucson, AZ · tax year 2025 13 grants Accepts applications $287,000 giving
  18. Harris Family FoundationTucson, AZ · tax year 2024 8 grants Accepts applications $199,637 giving
  19. The Kai Family FoundationTucson, AZ · tax year 2025 40 grants Accepts applications $192,980 giving
  20. Raymond & Margaret Vicker TrustTucson, AZ · tax year 2025 12 grants Accepts applications $183,000 giving
  21. Elizabeth Read Taylor FoundationTucson, AZ · tax year 2025 20 grants Accepts applications $182,000 giving
  22. Absolon FoundationTucson, AZ · tax year 2024 5 grants Accepts applications $167,500 giving
  23. Radke Family FoundationTucson, AZ · tax year 2025 7 grants Accepts applications $125,750 giving
  24. Shay Emma Hammer Research FoundtionTucson, AZ · tax year 2024 1 grant Accepts applications $120,000 giving
  25. Mulcahy FoundationTucson, AZ · tax year 2024 8 grants Accepts applications $116,200 giving

Giving by cause

Grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Education84 foundations $19,915,20454% of the total
  2. Human services69 foundations $2,989,3458% of the total
  3. Sports and recreation20 foundations $1,752,0375% of the total
  4. Arts and culture51 foundations $1,697,9765% of the total
  5. Health47 foundations $1,642,5494% of the total
  6. Philanthropy and grantmaking36 foundations $1,442,4594% of the total
  7. 18 other causes $7,380,31920% of the total

Most active small givers

Foundations with under $1 million in assets, by the number of grants they listed.

  1. Ender Family FoundationTucson, AZ · tax year 2024 34 grants Preselected only $282,710 giving
  2. The Evo and Ora Deconcini and Thu Family FoundationTucson, AZ · tax year 2024 33 grants Preselected only $30,000 giving
  3. Ross and Patty McCallister FoundationTucson, AZ · tax year 2024 28 grants Accepts applications $451,000 giving
  4. Greenworks Foundation (f/k/a James Christianman Foundation)Tucson, AZ · tax year 2025 28 grants Preselected only $180,555 giving
  5. Barr Charitable FoundationTucson, AZ · tax year 2024 28 grants Preselected only $8,700 giving
  6. Roth Family FoundationTucson, AZ · tax year 2024 26 grants Accepts applications $31,442 giving
  7. Paulin FoundationTucson, AZ · tax year 2024 19 grants Preselected only $55,900 giving
  8. Eddy FoundationTucson, AZ · tax year 2024 19 grants Accepts applications $34,040 giving
  9. The Grado FoundationTucson, AZ · tax year 2025 18 grants Preselected only $77,154 giving
  10. The Harry and Marjorie Stewart FoundatinTucson, AZ · tax year 2025 18 grants Preselected only $45,000 giving
  11. Today Is A Good Day FoundationTucson, AZ · tax year 2024 17 grants Preselected only $202,574 giving
  12. Marian P Gallin High School Sports Endowment TrustTucson, AZ · tax year 2025 17 grants Preselected only $74,526 giving
  13. The Carl & Mabel Shurtz FoundationTucson, AZ · tax year 2025 17 grants Accepts applications $30,000 giving
  14. Young FoundationTucson, AZ · tax year 2024 16 grants Preselected only $13,363 giving
  15. Iverson Family FoundationTucson, AZ · tax year 2024 16 grants Preselected only $9,600 giving