Grantmaking foundations in Oak Brook, IL

70 grantmaking foundations in Oak Brook, Illinois, ranked by recent giving reported to the IRS (about $94M combined).

Top foundations by giving (page 3)

51. Gerald J Kostelny and Carolyn Ckostelny Charitable Foundation

    Oak Brook, IL · Philanthropy, Voluntarism and Grantmaking Foundations
    $46K (2024)
52. Illinois Landscape Contractors Educational & Charitable Org

    Oak Brook, IL · Education
    $38K (2025)
53. Smacna Greater Chicago

    Oak Brook, IL · Philanthropy, Voluntarism and Grantmaking Foundations
    $33K (2025)
54. Capraro Family Foundation

    Oak Brook, IL · Philanthropy, Voluntarism and Grantmaking Foundations
    $30K (2025)
55. Veluchamy Family Foundation

    Oak Brook, IL · Philanthropy, Voluntarism and Grantmaking Foundations
    $24K (2024)
56. Aba Highland Medical Center

    Oak Brook, IL
    $22K (2024)
57. Raymond J Allen and Sally J Allen Charities Ltd

    Oak Brook, IL
    $21K (2025)
58. Michael a & Frances Halikias Charitable Trust

    Oak Brook, IL · Human Services
    $18K (2025)
59. Grateful Hearts Charitable Trust

    Oak Brook, IL · Religion-Related
    $17K (2025)
60. Asg Foundation

    Oak Brook, IL
    $14K (2024)
61. Heniff Cares Ltd Nfp

    Oak Brook, IL · Philanthropy, Voluntarism and Grantmaking Foundations
    $14K (2025)
62. Castle Foundation Inc

    Oak Brook, IL
    $9K (2025)
63. Haque Family Foundation

    Oak Brook, IL · Philanthropy, Voluntarism and Grantmaking Foundations
    $6.1K (2024)
64. Desai Family Foundation

    Oak Brook, IL · Philanthropy, Voluntarism and Grantmaking Foundations
    $5K (2024)
65. Society of University Otolarnyngologists

    Oak Brook, IL · Health Care
    $4K (2024)
66. Jvm Foundation

    Oak Brook, IL
    $3.7K (2023)
67. Advocate North Side Health Network

    Oak Brook, IL · Community Improvement and Capacity Building
    $2K (2024)
68. Hausner Foundation

    Oak Brook, IL · Philanthropy, Voluntarism and Grantmaking Foundations
    $1.4K (2025)
69. Chetna Foundation

    Oak Brook, IL · Philanthropy, Voluntarism and Grantmaking Foundations
    $900 (2025)
70. Gratiot Lake Conservancy

    Oak Brook, IL · Environment
    $200 (2025)