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Grantmaking foundations in Napa, CA

66 grantmaking foundations in Napa, California, ranked by recent giving reported to the IRS (about $76M combined).

Top foundations by giving

  1. Winiarski Family Foundation
    Napa, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $43M (2025)
  2. Queen of the Valley Hospital Foundation
    Napa, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $6.2M (2024)
  3. Community Foundation of the Napa Valley
    Napa, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $6M (2025)
  4. Peter a and Vernice H Gasser Foundation
    Napa, CA
    $3.5M (2024)
  5. Diane and Ron Miller Fund
    Napa, CA
    $2.3M (2024)
  6. Napa County Land Trust
    Napa, CA · Housing and Shelter
    $2.1M (2024)
  7. American Vineyard Foundation
    Napa, CA · Health Care
    $1.2M (2026)
  8. Ole Health Foundation
    Napa, CA · Mental Health and Crisis Intervention
    $1M (2025)
  9. Napa Valley Performing Arts Foundation
    Napa, CA
    $970K (2024)
  10. Sylvia Earle Alliance Mission Blue
    Napa, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $850K (2024)
  11. Syar Foundation
    Napa, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $820K (2025)
  12. Justin-Siena High School Foundation Inc
    Napa, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $680K (2025)
  13. Right Form the Start a California Corporation
    Napa, CA · Education
    $650K (2024)
  14. First Dollar Foundation
    Napa, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $570K (2024)
  15. Community Projects Inc
    Napa, CA · Environment
    $550K (2024)
  16. James and Ann Verhey Foundation
    Napa, CA
    $450K (2022)
  17. Wang Family Foundation
    Napa, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $430K (2024)
  18. Isabel and Michael Mondavi Foundation
    Napa, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $390K (2025)
  19. Vollmer Family Foundation
    Napa, CA
    $350K (2024)
  20. Birtcher Family Foundation
    Napa, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $340K (2025)
  21. Friends of Mare Island Technology
    Napa, CA
    $310K (2022)
  22. Friends of the Garzon School Inc
    Napa, CA · Education
    $310K (2025)
  23. Visit Napa Valley Inc
    Napa, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $270K (2025)
  24. Cope Family Center
    Napa, CA · Environment
    $260K (2025)
  25. Notes for Education Inc
    Napa, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $230K (2024)

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Causes in California