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Grantmaking foundations in Grinnell, IA

18 grantmaking foundations in Grinnell, Iowa, ranked by recent giving reported to the IRS (about $89M combined).

Top foundations by giving

  1. The Trustees of Grinnell College
    Grinnell, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $80M (2025)
  2. John M Campbell Trust
    Grinnell, IA
    $3.5M (2025)
  3. Mayflower Homes Foundation
    Grinnell, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $960K (2025)
  4. Greater Poweshiek Community Foundation
    Grinnell, IA · Diseases, Disorders and Medical Disciplines
    $840K (2025)
  5. C W Ahrens Charitable Trust
    Grinnell, IA
    $830K (2024)
  6. The Claude W and Dolly Ahrens Foundation Corporation
    Grinnell, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $570K (2024)
  7. Grinnell Regional Medical Center
    Grinnell, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $500K (2024)
  8. Grinnell Regional Medical Center Foundation
    Grinnell, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $490K (2024)
  9. Brownell Family Foundation Rt 2
    Grinnell, IA
    $430K (2025)
  10. Grinnell Mutual Group Foundation
    Grinnell, IA
    $360K (2025)
  11. Myrtle Cass Tr
    Grinnell, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $260K (2025)
  12. St Francis Manor Foundation
    Grinnell, IA · Youth Development
    $250K (2025)
  13. Michael and Susan Witt Foundation
    Grinnell, IA
    $170K (2024)
  14. United Fund of Grinnell Iowa Inc
    Grinnell, IA · Environment
    $130K (2025)
  15. Grinnell-Newburg Boosters
    Grinnell, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $79K (2025)
  16. Ramsey Family Foundation
    Grinnell, IA · Philanthropy, Voluntarism and Grantmaking Foundations
    $47K (2025)
  17. Helen T Stewart & Mildred Stewart Trust
    Grinnell, IA
    $14K (2025)
  18. Grinnell Fire Auxiliary
    Grinnell, IA · Public Safety, Disaster Preparedness and Relief
    $950 (2023)

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Causes in Iowa