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Private foundations Clayton, MOtax years 2023 to 2025

Private foundations in Clayton, MO

102 private foundations based in Clayton, MO filed a 990-PF in the last two years. In their latest returns they gave $37.1 million in 672 grants, and 21 say they accept applications.

Foundations with a return in the last two years, each by its latest return (tax years 2023 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. Anheuser-Busch FoundationClayton, MO · tax year 2024 Grants listed in an attachment (not in the e-file) Accepts applications $6,242,102 giving
  2. Ross Family FoundationClayton, MO · tax year 2024 73 grants Accepts applications $4,478,000 giving
  3. Mysun Charitable FoundationClayton, MO · tax year 2024 Grants listed in an attachment (not in the e-file) Accepts applications $3,602,600 giving
  4. Cox Foundation IncClayton, MO · tax year 2025 44 grants Preselected only $1,928,600 giving
  5. June Michael Charitable Trust FBO BeverlyClayton, MO · tax year 2024 1 grant Preselected only $1,404,175 giving
  6. Graybar FoundationClayton, MO · tax year 2024 77 grants Accepts applications $1,234,915 giving
  7. Richard W & Phyllis B Duesenberg FoundationClayton, MO · tax year 2024 Grants listed in an attachment (not in the e-file) Accepts applications $1,175,562 giving
  8. Norman J Stupp FoundationClayton, MO · tax year 2024 80 grants Accepts applications $1,030,500 giving
  9. Mildred Herbert and Julian Simon FDNClayton, MO · tax year 2024 Grants listed in an attachment (not in the e-file) Accepts applications $973,721 giving
  10. Maor FoundationClayton, MO · tax year 2024 5 grants Accepts applications $957,000 giving
  11. Preston M Green Charitable FoundationClayton, MO · tax year 2024 3 grants Accepts applications $870,000 giving
  12. Apex Oil Company Charitable FoundationClayton, MO · tax year 2025 26 grants Preselected only $839,000 giving
  13. Steven L Trulaske Sr Family FoundationClayton, MO · tax year 2025 4 grants Preselected only $665,000 giving
  14. Gorman FoundationClayton, MO · tax year 2024 1 grant Accepts applications $610,479 giving
  15. David and Dorothy Kemper Family FoundationClayton, MO · tax year 2024 18 grants Accepts applications $592,659 giving
  16. Betsy Hosch Patterson and Thomas O PattersonClayton, MO · tax year 2025 2 grants Preselected only $513,500 giving
  17. Louis & Dorothy Coover Charitable FoundationClayton, MO · tax year 2025 1 grant Preselected only $440,000 giving
  18. The Rubin Family FoundationClayton, MO · tax year 2024 17 grants Preselected only $437,250 giving
  19. D G Wilson & S R Wilson Charitble TRClayton, MO · tax year 2024 1 grant Preselected only $415,000 giving
  20. Adeline & Edna Burger Scholarship FundClayton, MO · tax year 2025 2 grants Preselected only $410,000 giving
  21. Dierberg Family FoundationClayton, MO · tax year 2024 21 grants Preselected only $389,050 giving
  22. Mae K Steele TrustClayton, MO · tax year 2024 2 grants Preselected only $376,750 giving
  23. Mizis Family Educational TrustClayton, MO · tax year 2024 1 grant Preselected only $374,089 giving
  24. Elberth R & Gladys F Grant CharClayton, MO · tax year 2024 Grants listed in an attachment (not in the e-file) Accepts applications $365,000 giving
  25. Marie & Mayer Winkler Peter C & Helen DClayton, MO · tax year 2024 3 grants Preselected only $290,001 giving

Foundations that accept applications

Largest first

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

  1. Anheuser-Busch FoundationClayton, MO · tax year 2024 Grants listed in an attachment (not in the e-file) Accepts applications $6,242,102 giving
  2. Ross Family FoundationClayton, MO · tax year 2024 73 grants Accepts applications $4,478,000 giving
  3. Mysun Charitable FoundationClayton, MO · tax year 2024 Grants listed in an attachment (not in the e-file) Accepts applications $3,602,600 giving
  4. Graybar FoundationClayton, MO · tax year 2024 77 grants Accepts applications $1,234,915 giving
  5. Richard W & Phyllis B Duesenberg FoundationClayton, MO · tax year 2024 Grants listed in an attachment (not in the e-file) Accepts applications $1,175,562 giving
  6. Norman J Stupp FoundationClayton, MO · tax year 2024 80 grants Accepts applications $1,030,500 giving
  7. Mildred Herbert and Julian Simon FDNClayton, MO · tax year 2024 Grants listed in an attachment (not in the e-file) Accepts applications $973,721 giving
  8. Maor FoundationClayton, MO · tax year 2024 5 grants Accepts applications $957,000 giving
  9. Preston M Green Charitable FoundationClayton, MO · tax year 2024 3 grants Accepts applications $870,000 giving
  10. Gorman FoundationClayton, MO · tax year 2024 1 grant Accepts applications $610,479 giving
  11. David and Dorothy Kemper Family FoundationClayton, MO · tax year 2024 18 grants Accepts applications $592,659 giving
  12. Elberth R & Gladys F Grant CharClayton, MO · tax year 2024 Grants listed in an attachment (not in the e-file) Accepts applications $365,000 giving
  13. John M Wolff FoundationClayton, MO · tax year 2025 8 grants Accepts applications $260,000 giving
  14. Bryan Lynch Family FoundationClayton, MO · tax year 2025 8 grants Accepts applications $137,000 giving
  15. The Jackes FoundationClayton, MO · tax year 2024 Grants listed in an attachment (not in the e-file) Accepts applications $135,500 giving
  16. Bascom Charitable FoundationClayton, MO · tax year 2025 26 grants Accepts applications $121,500 giving
  17. The Tim and Lillian Soldwedel FoundationClayton, MO · tax year 2024 3 grants Accepts applications $28,000 giving
  18. Elnel FoundationClayton, MO · tax year 2025 Grants listed in an attachment (not in the e-file) Accepts applications $15,000 giving
  19. Leader FoundationClayton, MO · tax year 2025 1 grant Accepts applications $13,917 giving
  20. Mr & Mrs Norman B Heimos FoundationClayton, MO · tax year 2023 1 grant Accepts applications $3,084 giving
  21. Ray Marglous Family FoundationClayton, MO · tax year 2024 6 grants Accepts applications $0 giving

Giving by cause

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

  1. Education34 foundations $2,562,14525% of the total
  2. Human services17 foundations $2,098,80620% of the total
  3. Environment12 foundations $1,278,05012% of the total
  4. Health18 foundations $1,102,85411% of the total
  5. Arts and culture12 foundations $959,7509% of the total
  6. Philanthropy and grantmaking8 foundations $661,8006% of the total
  7. 17 other causes $1,690,93916% of the total

Most active small givers

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

  1. Jasons LegacyClayton, MO · tax year 2024 12 grants Preselected only $42,200 giving
  2. The Thiemann Family FoundationClayton, MO · tax year 2025 10 grants Preselected only $75,000 giving
  3. M-A-S Charitable FoundationClayton, MO · tax year 2023 10 grants Preselected only $66,991 giving
  4. Steven L Trulaske Sr Family FoundationClayton, MO · tax year 2025 4 grants Preselected only $665,000 giving
  5. Fontaine Richard Earle Charitable FDClayton, MO · tax year 2025 4 grants Preselected only $50,788 giving
  6. Marie Wootten Charitable TrustClayton, MO · tax year 2024 3 grants Preselected only $86,505 giving
  7. Sara Jean Jones FoundationClayton, MO · tax year 2024 3 grants Preselected only $50,000 giving
  8. The Tim and Lillian Soldwedel FoundationClayton, MO · tax year 2024 3 grants Accepts applications $28,000 giving
  9. Oscar M Cohn Charitable TrustClayton, MO · tax year 2024 3 grants Preselected only $27,661 giving
  10. David G Danforth Charitable FDNClayton, MO · tax year 2025 3 grants Preselected only $25,000 giving
  11. The Joseph and Diana Carter FoundationClayton, MO · tax year 2024 3 grants Preselected only $17,037 giving
  12. Edna Haddad Charitable TrustClayton, MO · tax year 2024 3 grants Preselected only $15,900 giving
  13. Maebelle Danforth Charitable FDNClayton, MO · tax year 2025 2 grants Preselected only $65,000 giving
  14. Mary P Humble Private FoundationClayton, MO · tax year 2024 2 grants Preselected only $48,536 giving
  15. May & Wallace Cady Memorial TrustClayton, MO · tax year 2025 2 grants Preselected only $35,054 giving