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Grantmaking foundations in Old Greenwich, CT

32 grantmaking foundations in Old Greenwich, Connecticut, ranked by recent giving reported to the IRS (about $51M combined).

Top foundations by giving

  1. The Perrin Family Foundation
    Old Greenwich, CT
    $23M (2024)
  2. Worldquant Foundation
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $6.2M (2024)
  3. Blitzer Family Foundation
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $5.2M (2024)
  4. Karin Bain and John Kukral Foundation
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $5.1M (2025)
  5. Vranos Foundation
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $4.6M (2024)
  6. Oaklawn Foundation
    Old Greenwich, CT
    $1.9M (2025)
  7. The Phffoundation Inc
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $830K (2025)
  8. Christie and Ben Jacobs Family Foundation Inc
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $670K (2024)
  9. Penn Oberlander Family Foundation
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $610K (2025)
  10. The Laverack Family Foundation
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $610K (2025)
  11. Driscoll Family Foundation
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $480K (2025)
  12. Robert and Dale Rosen Charitable Foundation Tr Ua 08-05-92
    Old Greenwich, CT
    $190K (2024)
  13. Mhg Foundation Inc
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $190K (2024)
  14. Sound Beach Volunteer Services Foundation Inc
    Old Greenwich, CT · Community Improvement and Capacity Building
    $160K (2025)
  15. Spidacares Inc
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $160K (2024)
  16. Pacs1 Syndrome Research Foundation
    Old Greenwich, CT · Diseases, Disorders and Medical Disciplines
    $140K (2024)
  17. Old Timers Athletic Association of Greenwich Connecticut Inc
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $130K (2025)
  18. Greenwich Student Loan Fund Inc
    Old Greenwich, CT · Human Services
    $100K (2024)
  19. Samstone Foundation
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $100K (2024)
  20. Vick Foundation Inc
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $94K (2024)
  21. The John Treacy and Darcy F Beyer Foundation Inc
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $87K (2025)
  22. The Gibbons Foundation
    Old Greenwich, CT
    $80K (2025)
  23. Ravengate Foundation
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $80K (2025)
  24. Asher Family Foundation Inc
    Old Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $67K (2025)
  25. Jjj Family Foundation
    Old Greenwich, CT
    $40K (2025)

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