| Parent Booster USA IncMcArthur | Form 990-EZ | $40,875FY2026 |
| Rotary Club of Nipomo Foundation IncNipomo | Form 990-EZ | $40,795FY2025 |
| Parent Booster USA IncHoltville | Form 990-EZ | $40,772FY2025 |
| Linda Elementary School Parent Teacher ClubMarysville | Form 990-EZ | $40,731FY2025 |
| Oceanside Perspective IncDiamond Bar | Form 990-N | No figure |
| Auburn Chamber of Commerce Foundation IncAuburn | Form 990-N | No figure |
| Nelson Parents ClubFresno | Form 990-EZ | $40,693FY2025 |
| Mark Keppel High School AllianceAlhambra | Form 990-EZ | $40,635FY2025 |
| Third Baptist Foundation Inc - TbfiSan Francisco | Form 990-N | No figure |
| Tam District Alternative Schools FoundationLarkspur | Form 990-N | No figure |
| St Michaels Foundation for Elementary Education in the CenterSan Diego | Form 990-N | No figure |
| Sawan Singh and Surjit Kaur Gogia Education FoundationSan Jose | Form 990-N | No figure |
| Regional Analysis and Planning Services IncMonterey | Form 990-N | No figure |
| Hughson Elementary Parent Teacher ClubHughson | Form 990-EZ | $40,279FY2026 |
| Liberty Elementary PTOOntario | Form 990-EZ | $40,240FY2025 |
| Kingsburg High Ag Boosters IncKingsburg | Form 990-EZ | $40,175FY2024 |
| North Torrance Youth Musicians EnsembleTorrance | Form 990-N | No figure |
| Michelson Parents ClubMurphys | Form 990-EZ | $40,090FY2025 |
| Books and Wings Foundation of GuatemalaRedwood City | Form 990-N | No figure |
| Catheryn Gates Parent Teacher ClubRoseville | Form 990-EZ | $39,960FY2025 |
| Glendale Hispanic Business & Professional AssociationGlendale | Form 990-EZ | $39,927FY2025 |
| Carpinteria Community AssociationCarpinteria | Form 990-EZ | $39,921FY2025 |
| Stanford Business School Alumni AssociationStanford | Form 990-N | No figure |
| Partners in Oakland EducationBerkeley | Form 990-N | No figure |
| Hillcrest Baseball BoostersRiverside | Form 990-N | No figure |
| California InsiderIrvine | Form 990-N | No figure |
| Vista High School Regimental Band Booster IncVista | Form 990-EZ | $39,625FY2025 |
| Birren Center for Autobiographical StudiesSacramento | Form 990-N | No figure |
| Yorba Linda Middle School Instrumental Music Booster ClubYorba Linda | Form 990-N | No figure |
| Carl Hankey International Education FoundationMission Viejo | Form 990-EZ | $39,486FY2025 |
| Davis Enology & Viticulture OrganizationDavis | Form 990-EZ | $39,460FY2025 |
| Galilee International VenturesNewark | Form 990-N | No figure |
| Kohl Educational FoundationStockton | Form 990-EZ | $39,437FY2024 |
| Anderson Home & School ClubSan Jose | Form 990-N | No figure |
| Citrus Heights Rotary FoundationCitrus Heights | Form 990-N | No figure |
| Greater Venice Preschool Scholarship TrustVenice | Form 990-N | No figure |
| Parent Booster USA IncBakersfield | Form 990-EZ | $39,385FY2026 |
| Hillside Parent Teacher ClubMadera | Form 990-EZ | $39,368FY2025 |
| Next Vista for LearningSan Jose | Form 990-N | No figure |
| Institute for FiguringLos Angeles | Form 990-N | No figure |
| Las Animas Home & School ClubGilroy | Form 990-N | No figure |
| Parent Booster USA IncFullerton | Form 990-EZ | $39,173FY2026 |
| Scotts Valley Educational FoundationScotts Valley | Form 990 | $39,171FY2025 |
| Townsend Junior High School Parent Teacher OrganizationChino Hills | Form 990-EZ | $39,140FY2025 |
| Knights Ferry Parent Teacher ClubKnights Ferry | Form 990-N | No figure |
| Ukiah High School Alumni AssocUkiah | Form 990-N | No figure |
| Chinese Students and Scholars Association at Uc Santa BarbaraGoleta | Form 990-N | No figure |
| Devargas Home and School Club Devargas H&SCSan Jose | Form 990-N | No figure |
| Meadowbrook Educational FoundationPoway | Form 990-EZ | $38,968FY2026 |
| Behavioral Educational Assessment Services IncCarmichael | Form 990-N | No figure |