Grantmaking foundations in San Mateo, CA

87 grantmaking foundations in San Mateo, California, ranked by recent giving reported to the IRS (about $170M combined).

Top foundations by giving (page 2)

26. Mark Roberts Foundation

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $770K (2025)
27. Knossos Foundation Inc

    San Mateo, CA
    $680K (2024)
28. The Yonghua Foundation

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $610K (2025)
29. Leon a & Esther F Blum Foundation Inc

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $570K (2025)
30. Greene Van Arsdale Foundation

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $570K (2025)
31. Pta California Congress of Parents Teachers & Students Inc

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $530K (2025)
32. Oshea Foundation

    San Mateo, CA
    $470K (2025)
33. Korean American Community Foundation of San Francisco

    San Mateo, CA · Food, Agriculture and Nutrition
    $450K (2024)
34. Aragon High School Ptso Inc a California Npft Public Bnft Corp

    San Mateo, CA · Human Services
    $430K (2025)
35. San Mateo High School Foundation

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $410K (2025)
36. Hillsdale High School Foundation Inc

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $400K (2025)
37. Minority Television Project Inc

    San Mateo, CA · Arts, Culture and Humanities
    $380K (2024)
38. Erik S Cassel Foundation

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $340K (2024)
39. Givepower Foundation

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $320K (2024)
40. Curusis Family Charitable Foundation

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $310K (2026)
41. Butimar Productions

    San Mateo, CA · Human Services
    $290K (2022)
42. Human Investment Project Inc

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $280K (2025)
43. San Mateo County Parks and Recreation Foundation

    San Mateo, CA · Crime and Legal-Related
    $280K (2025)
44. Tesuque Foundation Inc

    San Mateo, CA
    $270K (2025)
45. Elfenworks Foundation

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $250K (2025)
46. Zief Family Foundation Inc

    San Mateo, CA
    $230K (2025)
47. Eduarte Courtot Foundation

    San Mateo, CA · Health Care
    $220K (2025)
48. St Johns Volunteers

    San Mateo, CA · Community Improvement and Capacity Building
    $200K (2025)
49. San Mateo Public Library Foundation

    San Mateo, CA · Youth Development
    $200K (2025)
50. Xelay Foundation

    San Mateo, CA · Philanthropy, Voluntarism and Grantmaking Foundations
    $180K (2025)