| UncodedLynwood | Form 990-N | No figure |
| Information Security ProLaguna Niguel | Form 990-N | No figure |
| San Diego Astrological SocietySan Diego | Form 990-N | No figure |
| Viet Ecology Foundation IncFremont | Form 990-N | No figure |
| Shark Research CommitteeChatsworth | Form 990-N | No figure |
| Society for Artificial Intelligence and Statistics IncWalnut Creek | Form 990-N | No figure |
| Dragonfly Society of the Americas IncRedwood City | Form 990-N | No figure |
| Whalesong Project IncRohnert Park | Form 990-N | No figure |
| Southern California Drug Metabolism Discussion GroupSan Diego | Form 990-N | No figure |
| Manta NetworkSanta Cruz | Form 990-N | No figure |
| Shasta Gem and Mineral Society IncRedding | Form 990-N | No figure |
| Tri-Valley Stargazers Astronomy ClubLivermore | Form 990-N | No figure |
| Field Trip Chairmens AssociationWest Sacramento | Form 990-N | No figure |
| International Association for the Advancement of STEAM PowerCambria | Form 990-N | No figure |
| The Mendocino InstituteFort Bragg | Form 990-N | No figure |
| Astronomers Without Borders IncCalabasas | Form 990-N | No figure |
| The Good Heavens SocietyColton | Form 990-N | No figure |
| California Science LeagueModesto | Form 990-N | No figure |
| Santa Rosa Mineral & Gem Society IncSanta Rosa | Form 990-N | No figure |
| Alliance for the Advancement of TechnologyHayward | Form 990-N | No figure |
| California Grain FoundationWoodland | Form 990-N | No figure |
| Steenblock Research InstituteSan Clemente | Form 990-N | No figure |
| Israel Longhorn ProjectSebastopol | Form 990-N | No figure |
| Air Brake AssociationLincoln | Form 990-N | No figure |
| International Society of AutomationBakersfield | Form 990-N | No figure |
| Oxnard Gem & Mineral SocietyOxnard | Form 990-N | No figure |
| Delphys FoundationNovato | Form 990-N | No figure |
| Experimental Rocket Propulsion SocietySunnyvale | Form 990-N | No figure |
| Biota InstituteBoulder Creek | Form 990-N | No figure |
| Earthquake Prediction ResearchEl Macero | Form 990-N | No figure |
| 50MHZ and Up Group of N CaliforniaSunnyvale | Form 990-N | No figure |
| A & S Research a California Business TRThousand Oaks | Form 990-N | No figure |
| Center for Injury ResearchSanta Barbara | Form 990-N | No figure |
| Big Mama Earth Learning AcademyCanyon Lake | Form 990-N | No figure |
| Kids 4 HydrogenSanta Cruz | Form 990-N | No figure |
| International Space Elevator ConsortiumSanta Ana | Form 990-N | No figure |
| Dive ScientificLaguna Niguel | Form 990-N | No figure |
| Biomod FoundationPacifica | Form 990-N | No figure |
| Space Agency Fan FundSanta Rosa | Form 990-N | No figure |
| Carl Correns Foundation for Mathematical BiologyMountain View | Form 990-N | No figure |
| Science ConnectedSan Francisco | Form 990-N | No figure |
| Htshff IncSan Francisco | Form 990-N | No figure |
| Redwood Christian Research LaboratoryNovato | Form 990-N | No figure |
| Genomeasia 100K FoundationFoster City | Form 990-N | No figure |
| Basement DevelopersBelmont | Form 990-N | No figure |
| Geologic Maps FoundationVentura | Form 990-N | No figure |
| Delta Veterinary Medical AssociationWoodbridge | Form 990-N | No figure |
| McKeen Motor Car Company Historical SocietyRamona | Form 990-N | No figure |
| Ventricular FoundationDavis | Form 990-N | No figure |
| US-Sino Technology Culture Innovation AssociationArcadia | Form 990-N | No figure |