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
- Franklin Templeton Charitable Foundation Inc
EIN 311738146 · Headquarters: San Mateo, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Free and Accepted Masons of CA Sons of the Desert
EIN 824807809 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Free and Accepted Masons Sons of the Desert 226
EIN 940487848 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Free the Flow
EIN 853126470 · Headquarters: San Mateo, CA, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Freeschools World Literacy USA Inc
EIN 270278176 · Headquarters: SAN MATEO, CA, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Friedman Family Foundation
EIN 946109692 · Headquarters: SAN MATEO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-PF
- Friends of 40 Baywood Avenue
EIN 923776659 · Headquarters: SAN MATEO, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Friends of Basilan Library and Technology Center Inc
EIN 454296467 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Friends of Genencats Inc
EIN 460549417 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Friends of Sunnybrae School
EIN 273779852 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Friends of the Cougars
EIN 770548729 · Headquarters: SAN MATEO, CA, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Friends of the Mandarin Scholars in the Smfcsd
EIN 452465260 · Headquarters: SAN MATEO, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Future Education Foundation
EIN 921008600 · Headquarters: SAN MATEO, CA, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- G W Williams Foundation
EIN 946095718 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Garden Study Club of the Peninsula
EIN 946082550 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Gate Parents Group of the San Mateo Union High School District
EIN 943238384 · Headquarters: San Mateo, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Genomeasia 100K Foundation
EIN 812909576 · Headquarters: San Mateo, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- Get Dirty
EIN 813915868 · Headquarters: SAN MATEO, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Gifted Support Center Incorporated
EIN 463971255 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Global Academy Alliance
EIN 394146663 · Headquarters: san mateo, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Global Grandmothers
EIN 273196090 · Headquarters: San Mateo, CA, US · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Golden Gate Society of Enrolled Agents Inc
EIN 800832311 · Headquarters: San Mateo, CA, US · Employment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Golden Gateway Library Network
EIN 943382605 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Golden State Adaptive Sports
EIN 934388023 · Headquarters: SAN MATEO, CA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Golden State Football Coaches Community Inc
EIN 863463428 · Headquarters: San Mateo, CA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Golf Club
EIN 237362210 · Headquarters: SAN MATEO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Goodera Foundation INC
EIN 932873809 · Headquarters: San Mateo, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Goshen Foundation
EIN 522452275 · Headquarters: SAN MATEO, CA, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Greater San Mateo Kiwanis Club Foundation
EIN 721587075 · Headquarters: San Mateo, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Green Apple Foundation Inc
EIN 844023622 · Headquarters: San Mateo, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Green Thumb Foundation Inc
EIN 453237536 · Headquarters: SAN MATEO, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Greene Van Arsdale Foundation Co KKR Accounting Services LLC
EIN 943254854 · Headquarters: San Mateo, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Gryphons Soccer Club Attn Force North
EIN 943213657 · Headquarters: SAN MATEO, CA, USA · Recreation & Sports · Latest available filing year: 2020 · Primary form: IRS Form 990
- Hatikvah Inc
EIN 770434052 · Headquarters: SAN MATEO, CA, USA · Housing & Shelter · Latest available filing year: 2021 · Primary form: IRS Form 990
- Head Start Auxiliary
EIN 941674292 · Headquarters: SAN MATEO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Heart of Wisdom Foundation
EIN 934700666 · Headquarters: SAN MATEO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Heart-sv
EIN 931656528 · Headquarters: SAN MATEO, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Highlands Elementary School Pta
EIN 946172358 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Hillbarn Theatre Inc
EIN 946121747 · Headquarters: SAN MATEO, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Hillsdale High School Athletic Booster Club
EIN 333735447 · Headquarters: San Mateo, CA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Hillsdale High School Foundation
EIN 870800728 · Headquarters: SAN MATEO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- HIP Housing Affordable Ventures Inc
EIN 911868360 · Headquarters: San Mateo, CA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- HIP Housing Development Corporation
EIN 943159161 · Headquarters: San Mateo, CA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- Hispanic Child Care Providers Association of San Mateo County
EIN 770607715 · Headquarters: SAN MATEO, CA, US · Arts, Culture & Humanities · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Homework Central
EIN 943368576 · Headquarters: San Mateo, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Hospital Consortium of San Mateo County
EIN 942637032 · Headquarters: SAN MATEO, CA, USA · Health Care · Latest available filing year: 2020 · Primary form: IRS Form 990
- Hotel Gildford Preservation & Scholarship Society
EIN 882770725 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Housing Endowment and Regional Trust of San Mateo County
EIN 721589835 · Headquarters: SAN MATEO, CA, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Housing Leadership Council of San Mateo County
EIN 943395945 · Headquarters: SAN MATEO, CA, USA · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990
- Human Investment Project Inc
EIN 942154614 · Headquarters: San Mateo, CA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- Humanity Through Education
EIN 208496382 · Headquarters: San Mateo, CA, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Hungarian American Chamber of Commerce in the U S Inc
EIN 943133157 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Hypopara Research Foundation
EIN 832048489 · Headquarters: San Mateo, CA, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990
- I a M a W Local Lodge 1414
EIN 940577214 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ibew Building Inc
EIN 946081364 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ibew Local 617
EIN 941095918 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ibew Local 617 Benevolent Fund
EIN 824606131 · Headquarters: SAN MATEO, CA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ibew Local 617 Scholarship Fund
EIN 823761593 · Headquarters: SAN MATEO, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Iep Collaborative Inc
EIN 833448806 · Headquarters: SAN MATEO, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Iglesia Cristiana Santuario De Los Milagros
EIN 270975361 · Headquarters: SAN MATEO, CA, USA · Religion Related · Latest available filing year: 2012 · Primary form: IRS Form 990
- Iglesia Mision Evangelica Principe De Paz Pentecostes
EIN 881844001 · Headquarters: San Mateo, CA, US · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Iglesia Mision Pentecostes Cristo Viene
EIN 812925435 · Headquarters: SAN MATEO, CA, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Immersive Fiction
EIN 395085636 · Headquarters: SAN MATEO, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Impact Therapy
EIN 992012532 · Headquarters: San Mateo, CA, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Imup Recovery
EIN 993873256 · Headquarters: San Mateo, CA, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Indian Schools Alumni and Friends Insaf
EIN 237338355 · Headquarters: San Mateo, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Innovate Your State
EIN 464777792 · Headquarters: SAN MATEO, CA, USA · Education · Latest available filing year: 2018 · Primary form: IRS Form 990
- InPlay Learning Network
EIN 993397482 · Headquarters: San Mateo, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Inspire Art Exhibits Inc
EIN 813286908 · Headquarters: San Mateo, CA, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Institute for the Study of Local Institutions
EIN 942170083 · Headquarters: San Mateo, CA, US · Medical Research · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- International Association of Lions Clubs
EIN 204600979 · Headquarters: San Mateo, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- International Association of Lions Clubs
EIN 475326996 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- International Fire Service Foundation
EIN 384004030 · Headquarters: San Mateo, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Foundation for Education and Relief
EIN 271847813 · Headquarters: San Mateo, CA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- It Takes a Village Children & Family Services Inc
EIN 995067785 · Headquarters: San Mateo, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Italian-american Women's Guild
EIN 943220478 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- James Drysdale Dunsmore Jr Scholarship Fund
EIN 232690559 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Janet J Cancer Foundation Inc
EIN 455503315 · Headquarters: San Mateo, CA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Japanese American Citizens League San Mateo Chapter
EIN 946102633 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Jewish Center of North Peninsula Inc
EIN 474482085 · Headquarters: San Mateo, CA, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Jewish Legal News Inc
EIN 931436920 · Headquarters: San Mateo, CA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Jh Robbins Foundation
EIN 942911318 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- John & Arlette Monfredini Foundation
EIN 464346024 · Headquarters: SAN MATEO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- June Watanabe in Company
EIN 942702186 · Headquarters: San Mateo, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Justin Parker Warrior House
EIN 851453839 · Headquarters: San Mateo, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Kallen and Helen Chan Foundation
EIN 770534450 · Headquarters: SAN MATEO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Kanting Charitable Foundation
EIN 262262198 · Headquarters: SAN MATEO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Keizai Silicon Valley
EIN 204049548 · Headquarters: San Mateo, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Kiwanis International Inc
EIN 946131409 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Knights of Columbus
EIN 611794285 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Knowcash
EIN 932078112 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Kuakini Highway 75-6099 Corp
EIN 462084372 · Headquarters: SAN MATEO, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Kusoma International
EIN 262941487 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Kyros Ministry
EIN 942950824 · Headquarters: San Mateo, CA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Larkspur Landing 100 Corp
EIN 463106130 · Headquarters: San Mateo, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990
- Laurel Pta
EIN 946172082 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- League of Women Voters of North & Central San Mateo County
EIN 942267196 · Headquarters: San Mateo, CA, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Learning Resources
EIN 942429467 · Headquarters: San Mateo, CA, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Lebnet
EIN 273472825 · Headquarters: SAN MATEO, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Leon a & Esther F Blum Foundation
EIN 942819074 · Headquarters: SAN MATEO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990