Grantmaking foundations in Connecticut

2,353 grantmaking foundations in Connecticut, ranked by recent giving reported to the IRS (about $8.6B combined).

Top foundations by giving (page 3)

51. Aronson Family Foundation

    Westport, CT
    $11M (2024)
52. Connecticut Project Inc

    New Haven, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $11M (2024)
53. Lone Pine Foundation Inc

    Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $10M (2024)
54. E Matilda Ziegler Fdn for the Blind

    Darien, CT
    $9.9M (2024)
55. Low Road Foundation

    Sharon, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $9.9M (2024)
56. Serious Fun Childrens Network Inc

    Westport, CT · Youth Development
    $9.9M (2024)
57. Yale New Haven Hospital

    New Haven, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $9.4M (2025)
58. The Connection Inc

    Middletown, CT · Education
    $9.1M (2025)
59. Hscc Stone Family Foundation

    Norwalk, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $8.9M (2024)
60. Warren and Augusta Hume Foundation Inc

    Stamford, CT
    $8.6M (2025)
61. Danbury Hospital & New Milford Hospital Foundation Inc

    Danbury, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $8.6M (2025)
62. Norwalk Hospital Foundation Inc

    Norwalk, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $8.4M (2025)
63. United Way of Greater New Haven Inc

    New Haven, CT · Science and Technology
    $8.2M (2025)
64. Community Foundation of Eastern Connecticut

    New London, CT · Human Services
    $8.2M (2024)
65. National Automatic Sprinkler Industry Apprentice and Training

    New Milford, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $8.1M (2024)
66. Leon Lowenstein Foundation Inc

    New Haven, CT
    $8M (2025)
67. The Leandro P Rizzuto Foundation

    Stamford, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $7.9M (2025)
68. National Charitable Endowment Inc

    Darien, CT · Recreation and Sports
    $7.7M (2024)
69. Rutledge Family Foundation

    Greenwich, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $7.6M (2025)
70. Trustees of Westminster School Inc

    Simsbury, CT · Human Services
    $7.5M (2025)
71. The Grossman Family Foundation

    Cos Cob, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $7.5M (2024)
72. Smilow Foundation

    Westport, CT
    $7.4M (2024)
73. Eversource Energy Foundation Inc

    Hartford, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $7.3M (2024)
74. Workforce Alliance Inc

    New Haven, CT · Human Services
    $7.2M (2025)
75. Harold W Mcgraw Jr Family Foundation Inc

    Stamford, CT · Philanthropy, Voluntarism and Grantmaking Foundations
    $7.2M (2024)

Showing the top 100 by giving. Search all 2,353 with a free account.