Nonprofits in San Mateo, California

Nonprofits in San Mateo, California. Browse 663 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.

Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.

Nonprofit profiles

  1. California Optometric Association

    EIN 946129284 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. California Retinitis Pigmentoses Support Group

    EIN 943174225 · Headquarters: San Mateo, CA, US · Health Care · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  3. California Retired Teachers Association

    EIN 942908269 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  4. California Search and Rescue

    EIN 208225445 · Headquarters: SAN MATEO, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. California Society of Facial Plastic Surgery Inc

    EIN 330895391 · Headquarters: San Mateo, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. California State Alumni Association Inc

    EIN 452922655 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  7. California State Division International Association for Identification

    EIN 956078706 · Headquarters: San Mateo, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. California State Friendship Committee

    EIN 943359775 · Headquarters: San Mateo, CA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. California Teachers Association-SMETA San Mateo Elementary Teachers Assoc

    EIN 941650848 · Headquarters: San Mateo, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. California Teachers Association-SMUHSDTA San Mateo Union HS District Teachers Ass

    EIN 942241660 · Headquarters: San Mateo, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Caminar

    EIN 941639389 · Headquarters: SAN MATEO, CA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Canyon Springs Marketplace Corp

    EIN 954267132 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Canyon Springs Marketplace North Corp

    EIN 202313717 · Headquarters: SAN MATEO, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Carezone Foundation Inc

    EIN 472822075 · Headquarters: SAN MATEO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Casting a Rise Foundation

    EIN 823475336 · Headquarters: San Mateo, CA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Castle Art Museum Art Research Laboratory Charit & Educational Tr

    EIN 956197589 · Headquarters: San Mateo, CA, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  17. Centennial Montessori Children S Fund Inc

    EIN 820792173 · Headquarters: San Mateo, CA, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  18. Center for Balanced Land Use Inc

    EIN 800473415 · Headquarters: San Mateo, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Center for Creative Communication

    EIN 237366668 · Headquarters: San Mateo, CA, US · Arts, Culture & Humanities · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  20. Center for Independence of the Disabled

    EIN 942581080 · Headquarters: SAN MATEO, CA, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990

  21. Center on Alcohol Drugs and Disability

    EIN 331040562 · Headquarters: San Mateo, CA, US · Mental Health & Crisis Intervention · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  22. Central Neighborhood Assc

    EIN 454158077 · Headquarters: SAN MATEO, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Centro De Rescate a La Familia

    EIN 300679649 · Headquarters: San Mateo, CA, US · Religion Related · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  24. Chai Preschool Inc

    EIN 204801654 · Headquarters: San Mateo, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Chance to Excel

    EIN 814603684 · Headquarters: SAN MATEO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  26. Chemical Dependency Center Alumni Association

    EIN 943008707 · Headquarters: San Mateo, CA, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Cherry Blossom Alumnae Association

    EIN 261981216 · Headquarters: San Mateo, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Chi-kwang Huo Education Foundation

    EIN 770519106 · Headquarters: SAN MATEO, CA, USA · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  29. China Times Cultural Foundation

    EIN 222711422 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  30. Chinese Christian Church Music Institute for Worship

    EIN 943353706 · Headquarters: SAN MATEO, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Christian Counseling Center Inc

    EIN 942912212 · Headquarters: SAN MATEO, CA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  32. Cidr Foundation

    EIN 844637880 · Headquarters: SAN MATEO, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Citizens Liaison Committee for the Hawaii Youth Correctional Facility

    EIN 510167311 · Headquarters: san mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  34. City Arts of San Mateo

    EIN 912030048 · Headquarters: SAN MATEO, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. City of San Mateo Funded HRA Trust

    EIN 810697778 · Headquarters: San Mateo, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Civic Leadership USA

    EIN 462800655 · Headquarters: San Mateo, CA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  37. Claremont Art Guild

    EIN 464283435 · Headquarters: SAN MATEO, CA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Cleaning Cali Foundation Inc

    EIN 332726857 · Headquarters: SAN MATEO, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Clement Chen Family Foundation

    EIN 943216156 · Headquarters: SAN MATEO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  40. Coastside Fishing Club

    EIN 383667686 · Headquarters: SAN MATEO, CA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. Coastside Fishing Foundation

    EIN 471430762 · Headquarters: SAN MATEO, CA, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  42. Code Blue and White

    EIN 332592545 · Headquarters: San Mateo, CA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Code Three Womens Cycling Inc

    EIN 510666459 · Headquarters: San Mateo, CA, US · Recreation & Sports · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  44. Coleman Research Group

    EIN 880890933 · Headquarters: San Mateo, CA, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Colored My Mind Inc

    EIN 274603884 · Headquarters: San Mateo, CA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  46. COMMON BRIGHTS DBA Downtown San Mateo Arts

    EIN 452354176 · Headquarters: San Mateo, CA, USA · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  47. Concilio Iglesia Mision Evangelica Principe De Paz Pentecostes Intern

    EIN 921088283 · Headquarters: San Mateo, CA, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Conocelo Corporation

    EIN 872221909 · Headquarters: San Mateo, CA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Consumer Federation of California Education Fdtn

    EIN 680448052 · Headquarters: San Mateo, CA, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. CORA Community Overcoming Relationship Abuse

    EIN 942481188 · Headquarters: San Mateo, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Coyote Point Rifle & Pistol Club Inc

    EIN 421695027 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Coyote Point Yacht Club

    EIN 941667536 · Headquarters: san mateo, CA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. Crestmont Conservatory of Music

    EIN 942146671 · Headquarters: SAN MATEO, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990

  54. Crossroads Enrichment Center

    EIN 300755907 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  55. Curiodyssey

    EIN 941262434 · Headquarters: SAN MATEO, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990

  56. Dave Stiles Foundation

    EIN 825267708 · Headquarters: san mateo, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Dawn Christian Academy

    EIN 471037828 · Headquarters: San Mateo, CA, USA · Education · Latest available filing year: 2017 · Primary form: IRS Form 990

  58. De Colores Arts

    EIN 462909183 · Headquarters: SAN MATEO, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Delta San Francisco-peninsula Foundation

    EIN 311656911 · Headquarters: SAN MATEO, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Delta Tau Delta Fraternity

    EIN 946163197 · Headquarters: SAN MATEO, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Dick Bonds Benevolent Fund Assoc

    EIN 943066682 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  62. District 21 American Contract Bridge League

    EIN 300460752 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Downtown San Mateo Association

    EIN 941591340 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Draper Hero Institute

    EIN 824951039 · Headquarters: SAN MATEO, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Dreams in Action International

    EIN 721553715 · Headquarters: San Mateo, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Drysdale Family Foundation

    EIN 825177373 · Headquarters: SAN MATEO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  67. Dukes and Duchesses Scholarship Fund

    EIN 311675099 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  68. Economic Vitality Research and Education Foundation

    EIN 941502129 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Eduarte Courtot Foundation

    EIN 825167898 · Headquarters: SAN MATEO, CA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. Elks Bay District Per Association

    EIN 472129403 · Headquarters: San Mateo, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Empower Future

    EIN 822575327 · Headquarters: SAN MATEO, CA, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  72. Empowerment Through Action

    EIN 994370940 · Headquarters: SAN MATEO, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Endue Foundation

    EIN 383662004 · Headquarters: SAN MATEO, CA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Erik S Cassel Foundation

    EIN 832127482 · Headquarters: San Mateo, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  75. Etc-tet

    EIN 455002843 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  76. Ethics San Mateo

    EIN 923265449 · Headquarters: San Mateo, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Everflow Sanctuary

    EIN 334413969 · Headquarters: San Mateo, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Executive Ridge 3210 Corp

    EIN 474614622 · Headquarters: SAN MATEO, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Eye Influence

    EIN 825513011 · Headquarters: SAN MATEO, CA, USA · Public & Societal Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  80. Faiva O Polinisia Production Corporation

    EIN 273231468 · Headquarters: San Mateo, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  81. Family & Children Services of Silicon Va

    EIN 941167408 · Headquarters: San Mateo, CA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2016 · Primary form: IRS Form 990

  82. Family Housing and Adult Resources Inc

    EIN 237062027 · Headquarters: SAN MATEO, CA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Fard Foundation Trust

    EIN 996460573 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  84. Feelosophers Path

    EIN 462635215 · Headquarters: San Mateo, CA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Ferrari Club of America Inc

    EIN 237380095 · Headquarters: San Mateo, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  86. Fever Aau Inc

    EIN 851139804 · Headquarters: SAN MATEO, CA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. Field Middle School

    EIN 854043151 · Headquarters: San Mateo, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Fiesta Gardens Homes Assn Inc

    EIN 946096880 · Headquarters: SAN MATEO, CA, USA · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  89. Fiji Society of the Bay Area

    EIN 264704189 · Headquarters: San Mateo, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  90. Financial Planning Forum Inc

    EIN 202370670 · Headquarters: San Mateo, CA, US · Human Services · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  91. Firebirds Youth Baseball Academy

    EIN 811014027 · Headquarters: San Mateo, CA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Firefighters Toys for Tots Inc

    EIN 710923240 · Headquarters: SAN MATEO, CA, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Five Spot Dance Club Inc

    EIN 943015364 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Forge Literary Press

    EIN 820910097 · Headquarters: San Mateo, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Foster City Flyers

    EIN 943354365 · Headquarters: SAN MATEO, CA, US · Youth Development · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  96. Foster City Little League

    EIN 946131129 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Foundation for San Mateo County Libraries

    EIN 831472500 · Headquarters: SAN MATEO, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Foundation for the Fine and Performing Arts

    EIN 943247334 · Headquarters: San Mateo, CA, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  99. Foundation for the Smac Education and Leadership Programs

    EIN 833845534 · Headquarters: San Mateo, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Franklin Street 1714 Corp

    EIN 991950662 · Headquarters: San Mateo, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

First page and all pages