Nonprofits in California
Nonprofits in California. Browse 229,931 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
- Open Space El Dorado Hills Inc
EIN 874245538 · Headquarters: El Dorado Hills, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Open Space Land Preserve Foundation
EIN 202611306 · Headquarters: CALABASAS, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Open Space Legal Defense Fund Inc
EIN 273556299 · Headquarters: Whittier, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Open Space Management Inc
EIN 311646921 · Headquarters: IMPERIAL BEACH, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Open Space Preservation Society Inc
EIN 843564833 · Headquarters: San Francisco, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Open Space Sausalito
EIN 471670327 · Headquarters: SAUSALITO, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Open Space Trails Alliance
EIN 994480469 · Headquarters: Diablo, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Open Staffing Foundation
EIN 852378958 · Headquarters: San Francisco, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Open Stewardship Foundation
EIN 453682002 · Headquarters: LOS ANGELES, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Open Sustainability Collaborative Inc
EIN 931440848 · Headquarters: Sunnyvale, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Open Sv Connect
EIN 922172572 · Headquarters: Sunnyvale, CA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Open Systemc Initiative
EIN 770573444 · Headquarters: NAPA, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990
- Open Tai Chi Foundation
EIN 931388666 · Headquarters: MILLBRAE, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Open Tap Initiative
EIN 392798910 · Headquarters: Petaluma, CA, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Open the Gates
EIN 711014868 · Headquarters: POWAY, CA, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Open Theatre
EIN 742164362 · Headquarters: Oakland, CA, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Open to Hope Foundation Inc
EIN 261797474 · Headquarters: PALO ALTO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Open Travel Alliance Inc
EIN 522172598 · Headquarters: Oakland, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Open Tv for America Inc
EIN 471952878 · Headquarters: San Diego, CA, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Open Up Resources
EIN 473240638 · Headquarters: MENLO PARK, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Open Village
EIN 912160441 · Headquarters: STANTON, CA, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990
- Open Web Device Compliance Review Board Forum
EIN 471450532 · Headquarters: Mountain View, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ
- Open Window Foundation
EIN 204727568 · Headquarters: LINCOLN, CA, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990
- Open Window Institute
EIN 414565207 · Headquarters: San Dimas, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Open Wings Theatre Company
EIN 842863768 · Headquarters: Stevenson Ranch, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Open Wounds
EIN 820654336 · Headquarters: GLENDALE, CA, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Open Your Heart for Abandoned Children Around the World
EIN 465636640 · Headquarters: Los Angeles, CA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Open Your Heart Foundation
EIN 800158029 · Headquarters: Ripon, CA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ
- Open Your Heart Ministries Inc
EIN 812718118 · Headquarters: San Leandro, CA, US · Religion Related · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Open Your Heart to Haiti Christian Community Fellowship Inc
EIN 460973120 · Headquarters: Oakland, CA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Open Your Heat Foundation
EIN 260728423 · Headquarters: ONTARIO, CA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2016 · Primary form: IRS Form 990-PF
- Open-source Print and Protect
EIN 851124312 · Headquarters: Stevenson Ranch, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Openadr Alliance
EIN 273289370 · Headquarters: San Ramon, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- OpenAI Foundation Fka OpenAI Inc
EIN 810861541 · Headquarters: San Francisco, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- Openart
EIN 852283943 · Headquarters: Eureka, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Openbel Consortium Inc
EIN 461786429 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ
- Openbot Foundation
EIN 934162194 · Headquarters: Santa Cruz, CA, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Opencollective Foundation
EIN 814004928 · Headquarters: COVINA, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990
- Opencovidscreen Foundation
EIN 851218425 · Headquarters: MENLO PARK, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- OpenCures Access
EIN 822318661 · Headquarters: Novato, CA, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Opencurriculum
EIN 813693162 · Headquarters: Sacramento, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Opendaylight Project Inc
EIN 462152026 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990
- Opendoor Services Inc Employment Services
EIN 200258937 · Headquarters: Modesto, CA, US · Employment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Opendoors Organization
EIN 334361058 · Headquarters: San Ramon, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Openem Foundation
EIN 464273301 · Headquarters: LOS ANGELES, CA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Openfabrics Inc
EIN 202146416 · Headquarters: PALO ALTO, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Openfarm Inc
EIN 472888335 · Headquarters: San Luis Obispo, CA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- OpenFog Consortium Inc
EIN 473956957 · Headquarters: Fremont, CA, USA · Science & Technology · Latest available filing year: 2018 · Primary form: IRS Form 990
- OpenGrowthorg
EIN 833024808 · Headquarters: Hollister, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Openhood Inc
EIN 264312908 · Headquarters: PIEDMONT, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Openhouse
EIN 943337955 · Headquarters: San Francisco, CA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- Openid Foundation
EIN 260447503 · Headquarters: SAN RAMON, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Opening Doors for Multicultural Disability Communities
EIN 264013223 · Headquarters: Los Angeles, CA, US · Human Services · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Opening Doors Foundation
EIN 473266737 · Headquarters: los gatos, CA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Opening Doors Inc
EIN 371417129 · Headquarters: SACRAMENTO, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Opening Doors Silicon Valley
EIN 992931529 · Headquarters: San Jose, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Opening Minds and Hearts Inc
EIN 992856124 · Headquarters: Oakland, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Opening Minds Productions
EIN 270957481 · Headquarters: Chatsworth, CA, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Opening Night Theater Inc
EIN 874754623 · Headquarters: BURBANK, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Openkilowatt Institute
EIN 270747850 · Headquarters: Santa Clara, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Openmeal Inc
EIN 851255972 · Headquarters: Redwood City, CA, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Openmind Foundation
EIN 920960220 · Headquarters: Los Angeles, CA, US · Public & Societal Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Openminds Foundation
EIN 884179016 · Headquarters: Santa Barbara, CA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990
- Openness Foundation
EIN 270889149 · Headquarters: PALO ALTO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-PF
- Openoceans Global
EIN 262476179 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- OpenRoad Foundation
EIN 871012810 · Headquarters: Sacramento, CA, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990
- OpenROAD Initiative Inc
EIN 922108211 · Headquarters: SAN DIEGO, CA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Openscied
EIN 392270152 · Headquarters: SAN DIEGO, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Opensourceliving Foundation
EIN 812882338 · Headquarters: Laguna Beach, CA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Opentelemed Inc
EIN 992613684 · Headquarters: Sonoma, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Opentreatments Foundation
EIN 862020066 · Headquarters: SAN JOSE, CA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Openvolunteer
EIN 331283834 · Headquarters: San Francisco, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Openwaters Foundation
EIN 813414121 · Headquarters: WHITTIER, CA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Opera 100 of Leisure World Laguna Hills
EIN 953585982 · Headquarters: LAGUNA HILLS, CA, US · Arts, Culture & Humanities · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Opera 4 Kids
EIN 842698742 · Headquarters: OCEANSIDE, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Opera A La Carte Association DBA Arts A La Carte
EIN 953458594 · Headquarters: Pasadena, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Opera a La Carte San Diego Inc
EIN 992824373 · Headquarters: San Marcos, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Opera Academy of California
EIN 550895590 · Headquarters: SAN FRANCISCO, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Opera Arts Inc
EIN 300540629 · Headquarters: Palm Springs, CA, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Opera Associates
EIN 952503791 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Opera Bravura Entertainment Inc
EIN 275035675 · Headquarters: Santa Clara, CA, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Opera Cultura
EIN 464332937 · Headquarters: San Jose, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Opera Laguna
EIN 922208070 · Headquarters: LAGUNA BEACH, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Opera Modesto Inc
EIN 770013155 · Headquarters: MODESTO, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Opera Music Academy
EIN 862050749 · Headquarters: LOS ANGELES, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Opera Neo
EIN 463142361 · Headquarters: San Diego, CA, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990
- Opera Noir Inc
EIN 770503778 · Headquarters: Orinda, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ
- Opera Parallle
EIN 721584393 · Headquarters: San Francisco, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Opera Project Carmel
EIN 264290942 · Headquarters: Pacific Grove, CA, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Opera San Jose Endowment Foundation Inc
EIN 272491185 · Headquarters: San Jose, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990
- Opera San Jose Incorporated
EIN 770009773 · Headquarters: SAN JOSE, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Opera San Luis Obispo Inc
EIN 770086873 · Headquarters: Atascadero, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Opera Santa Barbara
EIN 770347413 · Headquarters: SANTA BARBARA, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Opera Showcase of the Desert
EIN 201261920 · Headquarters: Palm Springs, CA, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Opera Stilnovo
EIN 200861080 · Headquarters: Porterville, CA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Opera-essence Performances
EIN 262683488 · Headquarters: Monterey, CA, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Operacion Esperanza
EIN 911799532 · Headquarters: LAKE FOREST, CA, USA · Health Care · Latest available filing year: 2011 · Primary form: IRS Form 990-PF
- Operalia Foundation Inc
EIN 954857653 · Headquarters: BEVERLY HILLS, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990
- Operating Engineers & No Calif Surveyor Pre-apprentice Apprentice & Journeyman
EIN 942289979 · Headquarters: ALAMEDA, CA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Operating Engineers & Participating Employers Pre-Apprentice Apprentice
EIN 941640988 · Headquarters: Alameda, CA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990