Grantmaking foundations in Greenwich, CT

227 grantmaking foundations in Greenwich, Connecticut, ranked by recent giving reported to the IRS (about $240M combined).

Top foundations by giving (page 2)

26. Riversville Foundation

    Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $1.9M (2024)
27. The Ae Family Foundation

    Greenwich, CT
    $1.9M (2024)
28. Mule Family Foundation

    Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $1.9M (2025)
29. Ohnell Family Foundation

    Greenwich, CT
    $1.9M (2025)
30. Bondi Foundation Inc

    Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $1.8M (2025)
31. Fibrolamellar Cancer Foundation

    Greenwich, CT · Community Improvement and Capacity Building
    $1.7M (2024)
32. Oconnell Family Foundation Inc

    Greenwich, CT
    $1.6M (2024)
33. Wright Foundation Inc

    Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $1.5M (2025)
34. Silverbird 29 Fund

    Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $1.5M (2024)
35. Ellen and Gary Davis Foundation

    Greenwich, CT
    $1.3M (2024)
36. Jaideep and Rachel Khanna Foundation

    Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $1.3M (2024)
37. The Pinkus Foundation

    Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $1.1M (2025)
38. The Per and Astrid Heidenreich Family Foundation

    Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $1.1M (2025)
39. Ole Skaarup Foundation

    Greenwich, CT
    $1M (2025)
40. Richard D Donchian Charitable Foundation Inc

    Greenwich, CT
    $1M (2024)
41. The Resource Foundation Inc

    Greenwich, CT
    $1M (2024)
42. Global Lyme Alliance Inc

    Greenwich, CT · Diseases, Disorders and Medical Disciplines
    $990K (2024)
43. Randall and Mary Hack Foundation

    Greenwich, CT
    $970K (2023)
44. Breast Cancer Alliance Inc

    Greenwich, CT · Civil Rights, Social Action and Advocacy
    $960K (2026)
45. Keefe Family Foundation

    Greenwich, CT
    $960K (2025)
46. Rodkin Family Foundation Inc

    Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $870K (2025)
47. United Way of Greenwich Inc

    Greenwich, CT · Science and Technology
    $800K (2025)
48. Emwiga Foundation

    Greenwich, CT
    $790K (2026)
49. John L and Sue Ann Weinberg Fdn

    Greenwich, CT
    $760K (2024)
50. Marsha Lilien Gladstein Foundation

    Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $730K (2025)

Showing the top 100 by giving. Search all 227 with a free account.