Philanthropy, Voluntarism & Grantmaking Foundations nonprofits in California
Philanthropy, Voluntarism & Grantmaking Foundations nonprofits in California. Browse 14,131 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 Door Incentives Inc
EIN 311602552 · Headquarters: Moraga, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Open Hand Foundation
EIN 300827510 · Headquarters: Torrance, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Open Hand Stewardship Inc
EIN 854367107 · Headquarters: San Jose, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Open Path Charitable Foundation
EIN 880818184 · Headquarters: IRVINE, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Open Philanthropy Advisors Inc
EIN 992255770 · Headquarters: PALO ALTO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Open Source Vision Foundation
EIN 455202940 · Headquarters: PALO ALTO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · 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 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
- Opencollective Foundation
EIN 814004928 · Headquarters: COVINA, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · 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
- Openness Foundation
EIN 270889149 · Headquarters: PALO ALTO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-PF
- Operating Engineers Community Service Fund
EIN 943268800 · Headquarters: CONCORD, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Operation American Spirit Inc
EIN 261243210 · Headquarters: LOS ANGELES, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ
- Operation Be Kind
EIN 821829114 · Headquarters: SANTA ANA, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Operation Children Inc
EIN 953950503 · Headquarters: BEVERLY HILLS, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Operation Genesis Inc
EIN 474214116 · Headquarters: SAN FRANCISCO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Operation Intrepid
EIN 474585332 · Headquarters: Woodland, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Operation Look Back Inc
EIN 833757772 · Headquarters: RIALTO, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Operation Military Support
EIN 562312509 · Headquarters: San Andreas, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Operation Mom
EIN 134233326 · Headquarters: Castro Valley, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Operation Resilience
EIN 931889606 · Headquarters: CARLSBAD, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Operation Restoration Intl
EIN 832266960 · Headquarters: PLACERVILLE, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Operation Showers of Appreciation
EIN 262419938 · Headquarters: FALLBROOK, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Operetta Foundation
EIN 050610725 · Headquarters: BEVERLY HILLS, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Optima Cares Foundation
EIN 872445692 · Headquarters: SANTA ANA, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Optimist Club of Carlsbad Foundation
EIN 680414602 · Headquarters: Carlsbad, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Optimistic Visions
EIN 331583969 · Headquarters: San Diego, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Options for All Holding Company
EIN 333003337 · Headquarters: SAN DIEGO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Optivest Foundation
EIN 260011296 · Headquarters: Dana Point, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Optivest Legacy Foundation
EIN 994920246 · Headquarters: Dana Point, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Opus Community Foundation
EIN 272413705 · Headquarters: IRVINE, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-PF
- Opus Foundation C/o Cbiz Advisors Llc
EIN 204927621 · Headquarters: LOS ANGELES, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Opus Qua Foundation
EIN 320427128 · Headquarters: San Jose, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Ora L Knight Foundation Inc
EIN 884320389 · Headquarters: Sacramento, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Oraifite Community USA in California Inc
EIN 863374668 · Headquarters: OXNARD, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orange Blossom Chapter Southern Dames of America
EIN 364814832 · Headquarters: La Verne, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orange Cares
EIN 330559338 · Headquarters: Huntington Beach, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Orange County Advisors in Philanthropy
EIN 274703059 · Headquarters: Anaheim, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orange County Auxiliary of Boys Republic
EIN 953076588 · Headquarters: Costa Mesa, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Orange County Chapter Charitable Tr
EIN 566683467 · Headquarters: Laguna Niguel, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orange County Community Foundation
EIN 330378778 · Headquarters: Irvine, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Orange County Cop Bowl Inc
EIN 953842787 · Headquarters: Riverside, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Orange County Education Foundation Inc
EIN 330733511 · Headquarters: ANAHEIM, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Orange County Grantmakers
EIN 991498431 · Headquarters: Huntington Beach, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990
- Orange County Makapo Aquatics Project
EIN 208663200 · Headquarters: Irvine, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Orange County Soccer Club Foundation
EIN 825391732 · Headquarters: IRVINE, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Orange County Teachers of the Year Award Foundation
EIN 832830898 · Headquarters: COSTA MESA, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Orange County United Way
EIN 330047994 · Headquarters: Irvine, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Orange County Women Lawyers Association Foundation
EIN 274737680 · Headquarters: NEWPORT BEACH, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Orbison Foundation
EIN 621721549 · Headquarters: ENCINO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-PF
- Orchard View Education Foundation
EIN 994414179 · Headquarters: Sebastopol, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ordinary People Fund
EIN 680227426 · Headquarters: South Lake Tahoe, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Oreggia Family Foundation
EIN 010854918 · Headquarters: SALINAS, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Organizacion Maya Guatemalteca
EIN 911768438 · Headquarters: Fremont, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Origin of Rainbows Foundation Inc
EIN 943439563 · Headquarters: Burbank, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Orna & Keenan Wolens Family Foundation
EIN 954713842 · Headquarters: BEVERLY HILLS, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Oro Central Community Foundation Inc
EIN 204509106 · Headquarters: Los Angeles, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Orona Family Foundation Inc
EIN 522322536 · Headquarters: ALAMO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Orpha Henry Testamentary Trust
EIN 953364490 · Headquarters: Grover Beach, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-PF
- Orphan Reach Across Borders Inc
EIN 921551793 · Headquarters: SAN DIEGO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Orphaned Angels Organization
EIN 261393851 · Headquarters: Buena Park, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Orphans Hope International
EIN 203062466 · Headquarters: SAN PEDRO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-PF
- Orphans in Need USA
EIN 861513003 · Headquarters: DUBLIN, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Orr Family Foundation
EIN 261622217 · Headquarters: SARATOGA, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Orthodox Vision Foundation
EIN 954834517 · Headquarters: LA CANADA FLINTRIDGE, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Oscar Hardie Dean Family Life Center
EIN 770565604 · Headquarters: Bakersfield, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Oscar Litwak Foundation
EIN 200334816 · Headquarters: TARZANA, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oshay Family Foundation
EIN 454106275 · Headquarters: SAN LEANDRO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Oside Owners Serving Individuals Deserving of Encouragement Oside
EIN 475201662 · Headquarters: Carlsbad, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Ospreytree Foundation
EIN 823316453 · Headquarters: CORONA DEL MAR, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Ostin Family Foundation C/o Frazin
EIN 954745068 · Headquarters: ENCINO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Otc Global Foundation
EIN 274001575 · Headquarters: SUNNYVALE, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Othgsd
EIN 274596613 · Headquarters: SPRING VALLEY, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ
- Otis & Bettina Chandler Foundation
EIN 452747625 · Headquarters: LOS ANGELES, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Otis & Elizabeth Chandler Foundation
EIN 814490305 · Headquarters: SAN FRANCISCO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Otter Cove Foundation
EIN 943287969 · Headquarters: Carmel, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Otto and Marianne Wolman Foundation Co Aguirre Ohara & Co Llp
EIN 330822925 · Headquarters: LA HABRA, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Otto Family Foundation
EIN 330916411 · Headquarters: SAN DIEGO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Our Change Foundation
EIN 863353394 · Headquarters: SAN FRANCISCO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990
- Our Children Their Future Foundation
EIN 260232888 · Headquarters: MARINA DEL REY, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ
- Our Diverse City
EIN 471854808 · Headquarters: VAN NUYS, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Our Healthy Way Foundation
EIN 932436699 · Headquarters: GLENDALE, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Our Hope Chest
EIN 811777143 · Headquarters: Bakersfield, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Our Lady of Fatima Villa Foundation
EIN 770536465 · Headquarters: SARATOGA, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Our Lady Queen of Angels Housing Alliance
EIN 922212037 · Headquarters: LOS ANGELES, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Our Little Light Foundation
EIN 461544429 · Headquarters: Roseville, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- OUR Los Al
EIN 912154459 · Headquarters: Los Alamitos, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Our Sacred Planet
EIN 933333858 · Headquarters: SAN LUIS OBISPO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Our Three Winners Foundation
EIN 475001971 · Headquarters: OAKLAND, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990
- Our Valley Cares Foundation
EIN 776187872 · Headquarters: FRESNO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Outreach Helping Hands
EIN 922347409 · Headquarters: Diamond Bar, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Overall Family Foundation
EIN 770500005 · Headquarters: SANTA BARBARA, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-PF
- Overflow Foundation
EIN 883232461 · Headquarters: Los Gatos, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Overseas Chinese Writers & Artists Association Inc
EIN 464402532 · Headquarters: San Gabriel, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Overseas Community Care Network of Oc
EIN 822859301 · Headquarters: SANTA ANA, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Ovl Foundation USA
EIN 881292578 · Headquarters: Hercules, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ovshinsky Foundation
EIN 382549279 · Headquarters: SAN DIEGO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2013 · Primary form: IRS Form 990-PF
- Owen & Kristina O'donnell Family Fd
EIN 810587229 · Headquarters: SAN FRANCISCO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-PF
- Owl Foundation
EIN 432081826 · Headquarters: IRVINE, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Ows Chest
EIN 261604176 · Headquarters: SACRAMENTO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF