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Grantmaking foundations in Johnston, IA

24 grantmaking foundations in Johnston, Iowa, ranked by recent giving reported to the IRS (about $63M combined).

Top foundations by giving

  1. Iowa Corn Promotion Board
    Johnston, IA · Environment
    $24M (2025)
  2. Iowa Corn Growers Association
    Johnston, IA · Environment
    $9M (2025)
  3. Iowa PBS Foundation
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $5.9M (2025)
  4. Delta Dental of Iowa
    Johnston, IA · Animal-Related
    $5.5M (2024)
  5. Childserve Foundation Inc
    Johnston, IA · Youth Development
    $4.6M (2025)
  6. Wesleylife Foundation
    Johnston, IA · Community Improvement and Capacity Building
    $3.4M (2024)
  7. Delta Dental of Iowa Foundation
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $3M (2024)
  8. Youth Homes of Mid America Foundation
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $2.6M (2025)
  9. United Ways of Iowa
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $1.3M (2024)
  10. Childserve Habilitation Center Inc
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $1.2M (2025)
  11. Ellipsis Inc
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $900K (2024)
  12. James & Marie Mccurdy Family Charitable Trust
    Johnston, IA
    $280K (2024)
  13. Richard L Mcconnell Fam Fdn
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $260K (2025)
  14. Corteva Agriscience Foundation
    Johnston, IA
    $200K (2022)
  15. W Leroy and Mildred Mccurdy Charitable Trust
    Johnston, IA
    $190K (2024)
  16. Childserve Homes Inc
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $100K (2025)
  17. Childserve Community Options Inc
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $91K (2025)
  18. Community Choice Credit Union Foundation
    Johnston, IA · Community Improvement and Capacity Building
    $56K (2024)
  19. Childserve Therapy Inc
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $38K (2025)
  20. Johnston Booster Club
    Johnston, IA · Civil Rights, Social Action and Advocacy
    $31K (2025)
  21. Childserve Clinic Inc
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $26K (2025)
  22. Ralph and Jeanne Jennings Family Foundation
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $16K (2025)
  23. Childserve Inc
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $13K (2025)
  24. James R and Charlotte a Noble Family Foundation
    Johnston, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $500 (2025)

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Causes in Iowa