| The National Institute for PlayCarmel Valley | Form 990-EZ | $133,994FY2025 |
| Institute for International Criminal InvestigationSacramento | Form 990-EZ | $114,512FY2025 |
| Omega Point InstituteSanta Barbara | Form 990 | $114,449FY2025 |
| Liberated Ethnic Studies Model Curriculum ConsortiumWhittier | Form 990-EZ | $108,047FY2025 |
| National Womens History ProjectSanta Rosa | Form 990-EZ | $105,373FY2024 |
| Human Behavior and Evolution Society IncRedlands | Form 990 | $95,793FY2025 |
| Chartered Institute of Arbitrators North America IncGlendale | Form 990-EZ | $94,206FY2024 |
| Institute for Families and NanniesSan Francisco | Form 990-EZ | $90,187FY2024 |
| Mother Divine Institute of Sacred SciencesPasadena | Form 990 | $84,244FY2025 |
| Bramble Center for Informal Research IncSan Diego | Form 990-EZ | $80,000FY2024 |
| Bayes ImpactSan Francisco | Form 990-EZ | $77,900FY2021 |
| New Way California FoundationAntelope | Form 990-EZ | $75,000FY2024 |
| Institute for Frontier ScienceOakland | Form 990 | $66,856FY2025 |
| Advantage Public InstituteChino | Form 990-EZ | $54,261FY2025 |
| Consumer Center for ResourcesLos Angeles | Form 990-N | No figure |
| American Sudanese Archaeological Research CenterLos Alamos | Form 990-N | No figure |
| KitechildMalibu | Form 990-N | No figure |
| Social Research ApplicationsLos Altos Hills | Form 990-N | No figure |
| Research Group on Socialism and Democracy IncPacifica | Form 990-N | No figure |
| Anthropological Research Contributions IncLittlerock | Form 990-N | No figure |
| Berkeley Technical ManagementBerkeley | Form 990-N | No figure |
| Mojave Desert Gem and Mineral SocietyBarstow | Form 990-N | No figure |
| Spirit Vitamins IncSanta Monica | Form 990-N | No figure |
| Inland Empire Hispanic Leadership CouncilRiverside | Form 990-N | No figure |
| Topicquests FoundationTemecula | Form 990-N | No figure |
| San Francisco Astrological SocietySan Francisco | Form 990-N | No figure |
| National Council for Geocosmic Research IncSan Diego | Form 990-N | No figure |
| Automatic Radio Frequency Techniques Group IncSan Jose | Form 990-N | No figure |
| Transparent Democracy OrgLos Altos Hills | Form 990-N | No figure |
| Iranian American Psychological AssociationLos Angeles | Form 990-N | No figure |
| Real ReasonOakland | Form 990-N | No figure |
| Nanka Fukushima Kenjin Kai IncFullerton | Form 990-N | No figure |
| Foundation for Research in Economics and EducationBurbank | Form 990-N | No figure |
| Interfaith Communities United for Justice and PeaceWest Hollywood | Form 990-N | No figure |
| Ante Meridiem IncorporatedSanta Cruz | Form 990-N | No figure |
| Calvary Hill Social ServicesSan Francisco | Form 990-N | No figure |
| New Equations FoundationSan Anselmo | Form 990-N | No figure |
| Malintzin Society IncSanta Monica | Form 990-N | No figure |
| International Society for Military EthicsPacific Grove | Form 990-N | No figure |
| International Institute for Sustainable TransportationSanta Cruz | Form 990-N | No figure |
| International Futures Forum - UsCarlsbad | Form 990-N | No figure |
| Ventura County Womens Forum CollaborativeCamarillo | Form 990-N | No figure |
| Matilija UniversityOjai | Form 990-N | No figure |
| Elasmotech LabsOrange | Form 990-N | No figure |
| Antipornography OrgLos Angeles | Form 990-N | No figure |
| Yolo County Womens History Month CommitteeWoodland | Form 990-N | No figure |
| Center for Educational Research and DevelopmentSan Diego | Form 990-N | No figure |
| Learning Research AssociationLong Beach | Form 990-N | No figure |
| Garibay InstituteHidden Hills | Form 990-EZ | $0FY2024 |
| Root Code CollectiveSacramento | Form 990-N | No figure |