| University of California Irvine Foundation | 501(c)(3) | 1968 | $230.7 million | $1.20 billion | 2025-06 |
| Concordia University Irvine | 501(c)(3) | 1941 | $138.1 million | $270.3 million | 2025-06 |
| Tarbut Vtorah Community Day School | 501(c)(3) | 1979 | $38.6 million | $117.8 million | 2025-06 |
| Excel Academy Charter Schools | 501(c)(3) | 2016 | $25 million | $13.6 million | 2025-06 |
| New Horizon School Irvine | 501(c)(3) | 2015 | $11.7 million | $3.7 million | 2025-06 |
| Western Mandarin Immersion Charter School | 501(c)(3) | 2022 | $8.2 million | $1.7 million | 2025-06 |
| South Coast Charter School Association | 501(c)(3) | 2023 | $8.1 million | $2.9 million | 2025-06 |
| New Horizon Educational Foundation | 501(c)(3) | 2010 | $7.1 million | $38.2 million | 2024-12 |
| Project Tomorrow | 501(c)(3) | 1997 | $4.2 million | $1.1 million | 2025-06 |
| Developments in Literacy Inc | 501(c)(3) | 1999 | $3 million | $3.6 million | 2025-12 |
| Uci Alumni Association | 501(c)(3) | 1975 | $2.9 million | $18.4 million | 2025-06 |
| American Career College Educational Foundation | 501(c)(3) | 2014 | $2.9 million | $1.4 million | 2024-12 |
| Tillys Life Center | 501(c)(3) | 2013 | $2.1 million | $2.9 million | 2025-06 |
| Ekadence Learning Foundation | 501(c)(3) | 2022 | $1.9 million | $108,352 | 2024-12 |
| Concordia University Foundation | 501(c)(3) | 1974 | $1.8 million | $6.5 million | 2025-06 |
| Future Leaders Academy Inc | 501(c)(3) | 2024 | $1.6 million | $137,916 | 2025-06 |
| Center for Future Global Leaders | 501(c)(3) | 2009 | $1.5 million | $70,907 | 2025-12 |
| Orange County Gang Reduction and Intervention Partnership | 501(c)(3) | 2013 | $1.4 million | $7.1 million | 2025-12 |
| Bethel Classical Academy | 501(c)(3) | 2022 | $1.3 million | $2.1 million | 2025-06 |
| Beckman High School Super Boosters Club | 501(c)(3) | 2005 | $1.3 million | $644,104 | 2025-05 |
| California Community College Association for Occupational | 501(c)(3) | 2021 | $1.2 million | $740,354 | 2025-06 |
| High School Inc Academies Foundation | 501(c)(3) | 2012 | $1.2 million | $989,718 | 2025-06 |
| The Lincoln Institute | 501(c)(3) | 2015 | $967,847 | $230,857 | 2025-06 |
| Rochester University | 501(c)(3) | 2018 | $908,446 | $1.2 million | 2024-12 |
| California Education Works | 501(c)(3) | 2023 | $808,030 | $845,984 | 2025-06 |
| Patient Safety Movement Foundation | 501(c)(3) | 2014 | $716,990 | $63,514 | 2026-03 |
| California League of Middle Schools | 501(c)(3) | 1994 | $694,666 | $261,598 | 2025-06 |
| International Christian University Inc | 501(c)(3) | 2022 | $649,500 | $149,752 | 2025-12 |
| Irvine Childrens Fund | 501(c)(3) | 1986 | $524,352 | $541,586 | 2025-06 |
| Northwood High School Athletic Booster Club | 501(c)(3) | 2000 | $518,436 | $334,253 | 2025-06 |
| International Leadership Foundation for Adventist Colleges and Univer | 501(c)(3) | 2019 | $467,186 | $29,413 | 2025-12 |
| Napa Institute Support Foundation | 501(c)(3) | 2016 | $462,859 | $2.9 million | 2025-12 |
| Irvine High School Athletic Boosters Club Inc | 501(c)(3) | 2006 | $448,370 | $281,640 | 2025-06 |
| Occacc Foundation | 501(c)(3) | 2003 | $343,611 | $1.2 million | 2025-06 |
| Elite Kids Academy | 501(c)(3) | 2016 | $343,376 | $1.1 million | 2025-12 |
| Being Built Together | 501(c)(3) | 2021 | $302,850 | $92,242 | 2024-12 |
| Orange County Jewish Community Scholar Program | 501(c)(3) | 2003 | $292,354 | $324,156 | 2024-12 |
| Network of Iranian-American Professionals of Orange County | 501(c)(3) | 2004 | $263,424 | $311,129 | 2025-12 |
| Supportability | 501(c)(3) | 2002 | $243,027 | $909,277 | 2025-12 |
| Do for One Foundation Inc | 501(c)(3) | 2022 | $229,879 | $243,272 | 2025-05 |
| Woodbridge Warrior Boosters | 501(c)(3) | 2011 | $215,116 | $23,324 | 2025-06 |
| Orchard Hills School Parent-Teacher Organization | 501(c)(3) | 2010 | $209,112 | $251,792 | 2025-07 |
| California Association for Institutional Research | 501(c)(3) | 2010 | $205,304 | $205,155 | 2025-12 |
| PHS Music Boosters Inc | 501(c)(3) | 2018 | $198,346 | $156,599 | 2025-06 |
| Vista Verde Foundation | 501(c)(3) | 2002 | $193,795 | $197,590 | 2024-12 |
| Beckman High School Parent Teacher Organization | 501(c)(3) | 2004 | $176,541 | $119,874 | 2025-06 |
| Hicks Canyon Elementary School Parent Teacher Organization | 501(c)(3) | 2004 | $175,006 | $202,469 | 2025-06 |
| American Southern California Economic and Culture Association | 501(c)(3) | 2015 | $165,183 | $11,490 | 2024-12 |
| Arise Global Mission Partners | 501(c)(3) | 2016 | $148,407 | $196,455 | 2025-12 |
| West Coast University Foundation | 501(c)(3) | 2012 | $142,350 | $220,827 | 2024-12 |
| North America Taiwanese Medical Association Foundation | 501(c)(3) | 1995 | $141,344 | $368,001 | 2024-12 |
| Awt Charitable Foundation | 501(c)(3) | 2007 | $123,854 | $142,338 | 2024-12 |
| Icia Dragons Pto | 501(c)(3) | 2023 | $123,518 | $31,874 | 2025-06 |
| Code Orange Robotics Inc | 501(c)(3) | 2014 | $122,873 | $173,020 | 2024-12 |
| Myford Elementary School Parent Teacher Organization | 501(c)(3) | 2001 | $120,021 | $69,637 | 2025-06 |
| Vaquero Instrumental Music Boosters | 501(c)(3) | 1991 | $115,783 | $78,274 | 2025-06 |
| Oc Elite Football | 501(c)(3) | 2019 | $108,350 | $1 | 2025-08 |
| International Shalom Fellowship | 501(c)(3) | 2007 | $103,790 | $2,362 | 2025-12 |
| 16P Genetic Syndrome Foundation | 501(c)(3) | 2022 | $100,772 | $34,018 | 2025-12 |
| Turing Learning Center | 501(c)(3) | 2023 | $100,000 | $109,182 | 2025-12 |
| Agribusiness Education Foundation | 501(c)(3) | 2000 | $99,725 | $233,067 | 2024-12 |
| Timberwolf Instrumental Music Boosters Northwood High School | 501(c)(3) | 2002 | $95,931 | $94,729 | 2025-07 |
| California Etec | 501(c)(3) | 2006 | $94,761 | $25,447 | 2024-12 |
| New Hope World Alliance Foundation | 501(c)(3) | 2024 | $93,463 | $5,394 | 2025-12 |
| Portola Pep Squad Boosters | 501(c)(3) | 2019 | $92,238 | $40,635 | 2025-12 |
| Social Capital Academy | 501(c)(3) | 2022 | $90,124 | $41,431 | 2024-12 |
| Bread of Life Theological Seminary North America | 501(c)(3) | 2026 | $87,633 | $99,618 | 2021-12 |
| Irvine International Academy Parent-Teacher Organization | 501(c)(3) | 2022 | $81,517 | $75,982 | 2026-06 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $78,157 | $24,324 | 2025-07 |
| National Forum To Accelerate Middle Grades Reform Inc | 501(c)(3) | 2005 | $76,631 | $69,703 | 2024-12 |
| Pacific Academy Pto | 501(c)(3) | 2020 | $74,397 | $94,829 | 2026-06 |
| Laurie Schoendorfer Endowment for Education | 501(c)(3) | 2018 | $71,735 | $265,268 | 2025-12 |
| Pta California Congress of Parents Teachers & Students Inc | 501(c)(3) | 1943 | $58,567 | $8,103 | 2025-06 |
| Suh Foundation | 501(c)(3) | 2023 | $56,063 | $50,238 | 2024-12 |
| California Insider | 501(c)(3) | 2024 | $39,733 | $82,101 | 2025-12 |
| Palm Springs School for Social Research | 501(c)(3) | 2026 | $33,250 | $30,237 | 2025-12 |
| Orange County Debate League | 501(c)(3) | 2014 | $32,508 | $29,006 | 2025-08 |
| Northwood Choral Music Boosters Inc | 501(c)(3) | 2010 | $29,027 | $54,569 | 2025-06 |
| Assoc of Comprehensive Collaborative Equitable Supervisio | 501(c)(3) | 2025 | $24,000 | $1,233 | 2025-12 |
| Californians for Nebraska | 501(c)(3) | 2026 | $14,556 | $35,943 | 2023-02 |
| Dagger & Key Housing Corporation | 501(c)(7) | 2023 | $12,903 | $557,749 | 2025-12 |
| Gente | 501(c)(3) | 2022 | $8,211 | $12,204 | 2025-12 |
| Juaa-Socal | 501(c)(3) | 2016 | $7,621 | $22,510 | 2025-12 |
| Central Taiwan Theological Seminary North America | 501(c)(3) | 2020 | $6,302 | $8,876 | 2025-12 |
| Parshang Foundation | 501(c)(3) | 2017 | $5,780 | $128,797 | 2024-12 |
| California Social Labs | 501(c)(3) | 2024 | $2,000 | $1,308 | 2025-12 |
| Legacy Robotics USA | 501(c)(3) | 2022 | $2,000 | $1,303 | 2024-07 |
| Artificial Intelligence Institute | 501(c)(3) | 2023 | $1,500 | $363 | 2025-12 |
| Road2 Education Foundation | 501(c)(3) | 2021 | $1 | $23,146 | 2025-12 |
| Acai Nonprofitorganization Overseas Studies Consultant Service Center | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Access Vision International Inc | 501(c)(3) | 2010 | $0 | $0 | 2024-12 |
| Accessed Initiative | 501(c)(3) | 2025 | | | |
| Achieve A Dream | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Acmp Southern California Chapter | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Actoc | 501(c)(3) | 2024 | | $5,250 | 2025-12 |
| Acton Academy Oc Inc | 501(c)(3) | 2016 | $0 | $0 | 2023-12 |
| Ahavah Rising Stars Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Ai & Robotics Youth Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Ai Empowerment and Readiness | 501(c)(3) | 2026 | | | |
| All-Asa Inc | 501(c)(3) | 2025 | | | |
| Alphapi Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Alum | 501(c)(3) | 2021 | $0 | $0 | 2025-06 |
| American Orff-Schulwerk Association | 501(c)(3) | 2016 | $0 | $0 | 2026-06 |
| American Youth Self Development Club | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Aram Community | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Ascending Stem | 501(c)(3) | 2023 | | $1 | 2025-12 |
| Ashary Inc | 501(c)(3) | 2023 | | $511,129 | 2024-12 |
| Asian Women Entrepreneurs | 501(c)(3) | 2009 | $0 | $0 | 2024-12 |
| Aspire Stem | 501(c)(3) | 2022 | $0 | $0 | 2026-08 |
| Atelier Bloom | 501(c)(3) | 2026 | | | |
| Atelier Crystal Foundation | 501(c)(3) | 2026 | | | |
| Athlete 2 Scholars Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Austin Ekeler Foundation | 501(c)(3) | 2020 | | $17,596 | 2025-12 |
| Beckman Chinese Parent Association | 501(c)(3) | 2008 | $0 | $0 | 2025-07 |
| Beckman High School Korean Parent Association | 501(c)(3) | 2024 | $0 | $0 | 2026-05 |
| Birdbath Tutoring | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| Bo Zhang and Bin Xu Foundation | 501(c)(3) | 2026 | | $22,260 | 2025-12 |
| Bob Franz Foundation | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Brain Museum | 501(c)(3) | 2025 | | | |
| Bridge Forward Initiative Inc | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Bridgeminds Corp | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Brysani Foundation | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| C4L Kids Foundation Inc | 501(c)(3) | 2009 | | $4,304 | 2025-12 |
| Calerie Business Academy | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| California Construction Institute | 501(c)(3) | 2019 | $0 | $0 | 2023-12 |
| California Huntington University Inc | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| California Young Achievers Association | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Chat Ease International Foundationinc | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Cheryll Clarke Foundation | 501(c)(3) | 2025 | | | |
| Child Care Providers of Orange County | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Chromekind | 501(c)(3) | 2026 | | | |
| Cocreate Courses Inc | 501(c)(3) | 2025 | | | |
| Code the Spectrum | 501(c)(3) | 2021 | $0 | $0 | 2024-06 |
| Community Innovations Foundation | 501(c)(3) | 2026 | | | |
| Craig School Parent Teacher Organization | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Creativitia Institute | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Cssa at Uc San Diego - Alumni & Advisory Council | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Delta Delta Sigma Pre-Dental Fraternity | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Dignity & Design Institute | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Doc Farm Films Inc | 501(c)(3) | 2015 | $0 | $1 | 2025-05 |
| Drama Mamas & Papas | 501(c)(3) | 2013 | $0 | $0 | 2024-06 |
| Dreams Hub | 501(c)(3) | 2024 | | | |
| E-Tap Inc | 501(c)(3) | 2000 | $0 | $0 | 2024-12 |
| Educada | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Education American Corporation | 501(c)(3) | 2015 | $0 | $0 | 2025-07 |
| Education for All Foundation | 501(c)(3) | 2020 | $0 | $0 | 2025-07 |
| Ellen Her Foundation | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Empoweroncology | 501(c)(3) | 2024 | $0 | $0 | 2026-06 |
| Exceptional Steam | 501(c)(3) | 2020 | | $1 | 2025-12 |
| Filipino American and Minority Foundation | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Filmpsychologee | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Financial Confidence | 501(c)(3) | 2026 | $0 | $0 | 2024-12 |
| First Chapter of Ca | 501(c)(3) | 2025 | | | |
| First-Generation Or Low-Income Medical Association | 501(c)(3) | 2025 | | | |
| Fitness Mba International Inc | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Forward Mentorship | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Foundation for the Contemporary Family | 501(c)(3) | 1999 | | $1.8 million | 2024-12 |
| Friends of Katie Wheeler Library Branch | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Friends of the Great Park Library | 501(c)(3) | 2026 | | | |
| Fudan University Alumni Association in Southern California | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Full Circle Breast Care | 501(c)(3) | 2025 | | | |
| Game Dev Tutors Inc | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Global Foundation for Culture and Peace Inc | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Global Training Center | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Gradmap Philippines | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Grand Educational Foundation | 501(c)(3) | 2020 | | $1 | 2024-12 |
| Greet Foundation Inc | 501(c)(3) | 2025 | | | |
| HLS Jewish Alumni Network Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Harmony Academy Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Harvard Law School Association of Orange County | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Hernandez Foundation for Education Lifecraft Mentorship | 501(c)(3) | 2025 | | | |
| Huang Family Foundation for the Youth | 501(c)(3) | 2025 | | | |
| Humanity Touches Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-11 |
| Ignited Minds Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Iitkgpsocal Inc | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Immimedilimited | 501(c)(3) | 2022 | $0 | $0 | 2026-02 |
| Innovatestem | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| International Alliance for Digital Game Education | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| International Cultural and Educational Exchange Foundation | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| International Go Club | 501(c)(3) | 2023 | | $194 | 2025-12 |
| International Scholarship Union | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| International Society of Reproductive Genetics | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Interstem | 501(c)(3) | 2021 | $0 | $0 | 2025-06 |
| Irvine Chinese Immersion Academy Foundation | 501(c)(3) | 2026 | | | |
| Irvine Chinese Student Union | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Irvine Forward Foundation | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Irvine Mom Association | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Irvine-Anaheim Ca Alumni Chapter | 501(c)(7) | 2014 | $0 | $0 | 2025-09 |
| JJ Community Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| JKP Foundation Inc | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Joy Academy Online | 501(c)(3) | 2025 | $0 | $0 | 2026-07 |
| Kali Robotics Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Keirsey Foundation | 501(c)(3) | 2024 | | | |
| Kits4kids | 501(c)(3) | 2025 | | | |
| Knowledge Tutoring Inc | 501(c)(3) | 2024 | $0 | $0 | 2024-06 |
| Korea Institute of Creative | 501(c)(3) | 2023 | | $1 | 2025-12 |
| Kyungpook National University Southern California Alumni Associa | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Kywa Foundation | 501(c)(3) | 2021 | | $339,066 | 2025-12 |
| Lambda Phi Nu | 501(c)(3) | 2015 | $0 | $0 | 2026-06 |
| Lao American Educational Advancement | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Latino Business Student Association Inc | 501(c)(3) | 2019 | $0 | $0 | 2025-09 |
| Legacy Empowerment Network | 501(c)(3) | 2024 | $0 | $0 | 2026-06 |
| Liberty International College | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Lilpad Childrens Learning Center for Chinese | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Little Thinkers | 501(c)(3) | 2026 | | | |
| Loma Linda Friends of Pediatric Dentistry | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Love Charity Foundation | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Lutheran High South - Orange County Crean Lutheran South High School | 501(c)(3) | 1941 | | | |
| M Music Group | 501(c)(3) | 2022 | $0 | $1 | 2025-07 |
| M Sheikh Engineering | 501(c)(3) | 2022 | | $11,793 | 2024-12 |
| Management Philosophy Study Group | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Masterprep Youth Foundation | 501(c)(3) | 2023 | | | |
| Math for Service Incorporated | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Mexico Outreach Buddy | 501(c)(3) | 2024 | $0 | $0 | 2025-08 |
| Milestones in Leadership Summit | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Ministry of Filipino-American Christians Inc | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Morality Matters Inc | 501(c)(3) | 2024 | | | |
| Morning Star Learning Center | 501(c)(3) | 2022 | $0 | $0 | 2025-06 |
| Mygration Speak | 501(c)(3) | 2024 | $0 | $0 | 2026-03 |
| Nac Educational Association | 501(c)(3) | 2021 | $0 | $0 | 2025-10 |
| Nerveon | 501(c)(3) | 2026 | | | |
| New Power Education Foundation | 501(c)(3) | 2025 | | | |
| Nextstep Education | 501(c)(3) | 2026 | | | |
| Ninja Ceo Foundation | 501(c)(3) | 2024 | $0 | $1 | 2025-12 |
| North American Youth Education Association | 501(c)(3) | 2024 | | | |
| Now Rise Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Oc Ai Innovation Center | 501(c)(3) | 2026 | | | |
| Oc Policy Association | 501(c)(3) | 2024 | $0 | $0 | 2025-01 |
| Oc Reader | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Offshore Adventures for Kids Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Omni Serve | 501(c)(3) | 2010 | $0 | $0 | 2025-08 |
| One World School | 501(c)(3) | 2009 | $0 | $0 | 2026-06 |
| Orange County Advanced Science Tutoring | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Orange County Reggio Round Table | 501(c)(3) | 2023 | $0 | $0 | 2026-06 |
| Orange County Uplift Foundation | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Pacific Academy Alumni Association | 501(c)(3) | 2026 | | | |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2025-08 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2026-04 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2025-06 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Pomegranate Schools | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Pre-Pharmacy Society at Uci | 501(c)(3) | 2022 | $0 | $0 | 2025-06 |
| Progressives for Iranian Democracy Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Project Find Yourself | 501(c)(3) | 2024 | $0 | $0 | 2023-12 |
| Project Next Foundation | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| RG Robotics Education Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Ready To Grow Initiative | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Richcode Non Profit Organization | 501(c)(3) | 2023 | $0 | $0 | 2025-11 |
| Roboteers in Action | 501(c)(3) | 2026 | $0 | $0 | 2026-03 |
| SW1Ft | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Safestone Pathways | 501(c)(3) | 2026 | | | |
| Sage Education Foundation | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Samirs Foundation | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Sciconnect Initiative | 501(c)(3) | 2024 | | | |
| Science Scholars | 501(c)(3) | 2024 | | | |
| Seva Initiative Inc | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Shantou Jinshan High School Alumni Association of North America | 501(c)(3) | 2025 | | | |
| Simplemath Foundation | 501(c)(3) | 2025 | | | |
| Slash Youth Education Center | 501(c)(3) | 2023 | $0 | $0 | 2025-07 |
| Small Business & Entreprenuership Institute Inc | 501(c)(3) | 2007 | | | |
| Sophia Academy | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Spartan Compass | 501(c)(3) | 2020 | | $2,544 | 2025-12 |
| Speak Your Heart Foundation | 501(c)(3) | 2025 | | | |
| Stairway To Heaven Foundation Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Stanbridge University Foundation | 501(c)(3) | 2019 | | $192,695 | 2024-12 |
| Stempower She | 501(c)(3) | 2023 | $0 | $0 | 2026-03 |
| Students Organize for Syria Inc | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Sudanese American Professionals Society | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Sungod Education Corporation | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Symponia | 501(c)(3) | 2022 | $0 | $0 | 2026-04 |
| Tah Foundation | 501(c)(3) | 2004 | | $34.1 million | 2025-12 |
| Tech Kits4kids Inc | 501(c)(3) | 2025 | | | |
| Techart Launchpad | 501(c)(3) | 2025 | | | |
| Teencivics | 501(c)(3) | 2026 | | | |
| Thamizhkeni Tamil Academy | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| The Golden Forest Foundation | 501(c)(3) | 2025 | | | |
| The Roberto Foundation | 501(c)(3) | 2005 | | $73.7 million | 2024-12 |
| The Third Mind Institute | 501(c)(3) | 2026 | | | |
| Torchus Inc | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Trans Pacific Foundation | 501(c)(3) | 2025 | | | |
| Treasure Hacks | 501(c)(3) | 2022 | $0 | $4,811 | 2025-08 |
| Tustin Educators Association Scholarship Fund | 501(c)(3) | 2018 | $0 | $0 | 2025-08 |
| Ultimate Stem Suxcess Foundation | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Ultra Foundation | 501(c)(3) | 2026 | | $200,489 | 2025-12 |
| University High Girls Soccer Boosters | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| University High School Boys Basketball Booster Club | 501(c)(3) | 2023 | $0 | $0 | 2026-06 |
| University High School Girls Basketball Booster Club | 501(c)(3) | 2012 | $0 | $0 | 2025-06 |
| University High School Orchestra Boosters | 501(c)(3) | 2016 | $0 | $17,184 | 2025-06 |
| University High School Pep Squad Booster Club | 501(c)(3) | 2011 | $0 | $0 | 2026-04 |
| University of California-Irvine Student and Scholars Association | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| University of International Academics Inc | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| University of Irvine | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Vasavites of West Inc | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Via Via Nova | 501(c)(3) | 2026 | | | |
| Villagr Co | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Voices for Change Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Warm Heart Foundation Malawi | 501(c)(3) | 2021 | $0 | $0 | 2023-12 |
| Westcliff Endeavor Inc | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| William and Anthony Lin Brothers Foundation | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Wordology Education | 501(c)(3) | 2023 | $0 | $0 | 2025-07 |
| World Eco Design Organization | 501(c)(3) | 2025 | $0 | $0 | 2025-09 |
| Writers Ink Nonprofit | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Xing Memorial Fund | 501(c)(3) | 2016 | $0 | $0 | 2025-10 |
| Ysedu Inc | 501(c)(3) | 2025 | | | |
| Yuyukoyachurch | 501(c)(3) | 2025 | | | |
| Zotckets | 501(c)(3) | 2026 | | | |