| Momentum Foundation IncWinchester | Form 990 | $882,216FY2024 |
| Make NashvilleNashville | Form 990 | $569,405FY2025 |
| Diving with a Purpose and Development Group IncNashville | Form 990-EZ | $199,932FY2024 |
| Global Networks IncMount Juliet | Form 990-EZ | $193,398FY2025 |
| Chattanooga Quantum CollaborativeChattanooga | Form 990-EZ | $136,476FY2025 |
| Society for Research on Biological Rhythms IncBrentwood | Form 990 | $132,823FY2025 |
| Peoples Science NetworkKnoxville | Form 990-EZ | $121,158FY2025 |
| Morecomputing Learning ServicesAntioch | Form 990-EZ | $110,690FY2025 |
| Codestock CorporationKnoxville | Form 990-EZ | $110,610FY2026 |
| Core Academy of Science IncorporatedDayton | Form 990-EZ | $95,832FY2024 |
| Healthy Trade Institute IncKnoxville | Form 990-EZ | $87,973FY2025 |
| Forensic Training Foundation IncKnoxville | Form 990-EZ | $71,168FY2024 |
| American Chemical SocietyOak Ridge | Form 990-EZ | $62,585FY2025 |
| Model City MakerspaceKingsport | Form 990-EZ | $51,654FY2026 |
| Excellence in Community Education and Economic DevelopmentCelina | Form 990-N | No figure |
| Calcutta University Alumni AssociationAntioch | Form 990-N | No figure |
| Nashville 2600 OrganizationMurfreesboro | Form 990-N | No figure |
| Tennessee Center for Bioethics AndcultureBrentwood | Form 990-N | No figure |
| Southeast Hydrogen Energy Alliance FoundationNashville | Form 990-N | No figure |
| Sumner County Amateur Radio AssociationGallatin | Form 990-N | No figure |
| American Council for Medicinally Active PlantsMemphis | Form 990-N | No figure |
| TN Days Community EventsKnoxville | Form 990-N | No figure |
| Tech 4 Truth IncNewport | Form 990-N | No figure |
| Waterstar FoundationPegram | Form 990-N | No figure |
| Society for Information Management Nashville IncNashville | Form 990-N | No figure |
| Nashville Tech BuildersNashville | Form 990-N | No figure |
| East Tennessee Avain Research IncSeymour | Form 990-N | No figure |
| Southeastern Avian ResearchClarksville | Form 990-N | No figure |
| Purple Zebra ServicesKnoxville | Form 990-N | No figure |
| American Fisheries Society Bioengineering SectionNashville | Form 990-N | No figure |
| American Fisheries SocietyNashville | Form 990-N | No figure |
| Barnard-Seyfert Astronomical SocietyNashville | Form 990-N | No figure |
| Nashville Amateur Radio Club IncNashville | Form 990-N | No figure |
| Chattanooga Grotto of the National Speleological Society IncOoltewah | Form 990-N | No figure |
| Appalachian Branch of the American Assoc for Laboratory Animal SvcsJohnson City | Form 990-N | No figure |
| Kingsport Gems and Minerals SocietyJonesborough | Form 990-N | No figure |
| Tennessee Valley Rock and Mineral Society IncChattanooga | Form 990-N | No figure |
| Higher Synthesis Foundation IncLinden | Form 990-N | No figure |
| Mars Agricultural Research ConsortiumKnoxville | Form 990-N | No figure |
| Techforall MemphisMemphis | Form 990-N | No figure |
| ETSAPowell | Form 990-N | No figure |
| Help Me Stream Research FoundationKingsport | Form 990-N | No figure |
| Tennessee Cave SurveyOoltewah | Form 990-N | No figure |
| Southeastern Water Pollution Biologist AssociationChattanooga | Form 990-N | No figure |
| Tennessee Valley Stellar CorporationOak Ridge | Form 990-N | No figure |
| Black in Biological Anthropology CollectiveNashville | Form 990-N | No figure |
| Science Education Research FoundationKnoxville | Form 990-N | No figure |
| International Institute for Nondestructive ExaminationSignal Mountain | Form 990-N | No figure |
| Help Me ReconnectKingsport | Form 990-N | No figure |
| Kentucky-Tennessee Branch of AsmJonesborough | Form 990-N | No figure |