| PTA California Congress of Parents Teachers & Students IncFoster City | Form 990-EZ | $82,350FY2025 |
| PTA California Congress of Parents Teachers & Students IncMilpitas | Form 990-EZ | $82,290FY2025 |
| PTA California Congress of Parents Teachers & Students IncHuntington Beach | Form 990-EZ | $82,280FY2025 |
| Diablo Vista Retired Teachers Scholarship FoundationConcord | Form 990 | $82,254FY2026 |
| PTA California Congress of Parents Teachers & Students IncSan Bruno | Form 990-EZ | $82,242FY2025 |
| Tip of Yuba Sutter S Butte CountiesMarysville | Form 990-EZ | $82,221FY2025 |
| Electronic Educational Programs IncMontecito | Form 990-EZ | $82,165FY2024 |
| S2C Cycling TeamMurrieta | Form 990-EZ | $82,114FY2025 |
| Lamb Orphanage USA IncIrvine | Form 990-EZ | $82,109FY2025 |
| Coachella Valley Boxing ClubCoachella | Form 990-EZ | $82,100FY2026 |
| Glendora High School Football Boosters ClubGlendora | Form 990-EZ | $81,984FY2024 |
| PTA California Congress of Parents Teachers & Students IncTorrance | Form 990-EZ | $81,981FY2025 |
| PTA California Congress of Parents Teachers & Students IncSimi Valley | Form 990-EZ | $81,977FY2026 |
| Coordinating Council of the Guilds of Childrens Hospital Central CAMadera | Form 990-EZ | $81,962FY2024 |
| Leadership IncorporatedEast Palo Alto | Form 990-EZ | $81,940FY2025 |
| Saddleback Kiwanis Foundation IncLaguna Hills | Form 990 | $81,809FY2025 |
| PTA California Congress of Parents Teachers & Students IncAlameda | Form 990-EZ | $81,791FY2025 |
| Friends of the Arcadia Public Library IncArcadia | Form 990-EZ | $81,755FY2026 |
| Seneca Hospital AuxiliaryChester | Form 990-EZ | $81,752FY2026 |
| PTA California Congress of Parents Teachers & Students IncElk Grove | Form 990-EZ | $81,688FY2025 |
| Mexican-American Educational Guidance Foundation IncSolana Beach | Form 990-EZ | $81,661FY2025 |
| PTA California Congress of Parents Teachers & Students IncSan Jose | Form 990-EZ | $81,637FY2025 |
| PTA California Congress of Parents Teachers & Students IncRedondo Beach | Form 990-EZ | $81,582FY2025 |
| California Conservatory TheaterSan Leandro | None required | $81,494FY2012 |
| PTA California Congress of Parents Teachers & Students IncSan Diego | Form 990-EZ | $81,408FY2025 |
| Camp FireMadera | Form 990-EZ | $81,354FY2024 |
| Southern California Society for Child PsychiatryPalm Desert | Form 990-EZ | $81,220FY2026 |
| PTA California Congress of Parents Teachers & Students IncCarlsbad | Form 990-EZ | $81,220FY2025 |
| Portuguese Holy Spirit Society IncSan Luis Obispo | Form 990-EZ | $81,217FY2025 |
| PTA California Congress Parents Teachers & Students IncBurlingame | Form 990-EZ | $81,215FY2025 |
| Lemoore Christian Aid IncLemoore | Form 990-EZ | $81,199FY2025 |
| PTA California Congress of Parents Teachers & Students IncPalos Verdes Estates | Form 990-EZ | $81,124FY2025 |
| Little League Baseball IncKings Beach | Form 990-EZ | $81,104FY2025 |
| San Diego Indoor Sports IncSan Diego | Form 990 | $81,016FY2025 |
| Little League Baseball IncFort Bragg | Form 990-EZ | $81,012FY2024 |
| PTA California Congress of Parents Teachers & Students IncSan Diego | Form 990-EZ | $80,942FY2025 |
| Ventura Senior Handicrafts ProjectVentura | Form 990-EZ | $80,938FY2025 |
| PTA California Congress of Parents Teachers & Students IncRedondo Beach | Form 990-EZ | $80,839FY2025 |
| Horseless Carriage Foundation IncLa Mesa | Form 990 | $80,821FY2025 |
| San Luis Obispo Railroad MuseumSan Luis Obispo | Form 990 | $80,752FY2025 |
| Economic Vitality Education and Rsearch FoundationSan Mateo | Form 990-EZ | $80,693FY2026 |
| Occidental Community ChoirOccidental | Form 990-EZ | $80,673FY2025 |
| Little League Baseball IncSanta Cruz | Form 990-EZ | $80,673FY2025 |
| Bonita Optimist Club Youth and Community Service Activities FoundBonita | Form 990 | $80,648FY2025 |
| PTA California Congress of Parents Teachers & Students IncChino Hills | Form 990-EZ | $80,641FY2025 |
| PTA California Congress of Parents Teachers & Students IncSanta Monica | Form 990-EZ | $80,636FY2025 |
| Foundation for Health ResearchGlendora | Form 990 | $80,566FY2024 |
| American Aviation Historical SocietyRiverside | Form 990 | $80,548FY2025 |
| Road Runers Club of AmericaSan Francisco | Form 990-EZ | $80,546FY2025 |
| Napa Sheriffs Activity LeagueNapa | Form 990-EZ | $80,503FY2025 |