| Ridgeview Elementary School PTOJohnson City | Form 990-EZ | $53,765FY2025 |
| PTO Westview ElementaryChattanooga | Form 990-EZ | $53,453FY2026 |
| Nolan Elementary School Parent Teacher AssociationSignal Mountain | Form 990-EZ | $53,224FY2025 |
| Richardson Education IncorporatedMemphis | Form 990-EZ | $53,000FY2025 |
| Clarksville-Montgomery County Adult Literacy CouncilClarksville | Form 990-EZ | $52,677FY2025 |
| Houston Middle School PTOGermantown | Form 990-EZ | $52,586FY2026 |
| Union City Schools Foundation IncUnion City | Form 990 | $52,239FY2026 |
| Jim Wideman Ministries IncMurfreesboro | Form 990-EZ | $51,553FY2022 |
| Kristen M Ettensohn Scholarship FundSewanee | Form 990-EZ | $51,084FY2025 |
| Barfield ElementaryMurfreesboro | Form 990-EZ | $51,016FY2026 |
| Houston High School Band BoostersGermantown | Form 990-EZ | $50,959FY2025 |
| Daniel Boone Blazer BandGray | Form 990-EZ | $50,828FY2025 |
| Indian Nation Band BoostersCunningham | Form 990-EZ | $50,639FY2025 |
| Dogwood Elementary School Parent Teacher OrganizationGermantown | Form 990-EZ | $50,580FY2025 |
| Union City High School Booster Club IncorporatedUnion City | Form 990-EZ | $50,171FY2026 |
| Power Move Education & Development GroupNashville | Form 990-EZ | $50,000FY2025 |
| Houston High School CheerboostersGermantown | Form 990-EZ | $49,988FY2026 |
| Bereaved Parents of the USASevierville | Form 990-N | No figure |
| Parent Booster USA IncCollierville | Form 990-EZ | $49,702FY2025 |
| Pregnancy Support CenterMountain City | Form 990-EZ | $49,399FY2025 |
| Greene County Imagination LibraryGreeneville | Form 990-N | No figure |
| Meigs Parent AssociationNashville | Form 990-EZ | $48,921FY2025 |
| Tennessee Council of Cooperatives IncRockvale | Form 990-N | No figure |
| Parent Booster USA IncWhite House | Form 990-EZ | $47,570FY2026 |
| Stanford Montessori P T ONashville | Form 990-EZ | $47,286FY2025 |
| Oak Elementary PTOBartlett | Form 990-EZ | $47,260FY2025 |
| Knoxville Central High School Athletics FoundationKnoxville | Form 990-N | No figure |
| Legacy Center of NashvilleNashville | Form 990-N | No figure |
| Patriot Foundation TrustChattanooga | Form 990-N | No figure |
| Tates School of Discovery FoundationKnoxville | Form 990-N | No figure |
| Emergency Nurses AssociationBrighton | Form 990-N | No figure |
| Rock Springs Elementary School Parent Teach OrganizationLa Vergne | Form 990-EZ | $45,992FY2025 |
| Prospect Elementary PTOSeymour | Form 990-N | No figure |
| Mt Juliet Elementary Parent Teacher OrganizationMount Juliet | Form 990-EZ | $45,418FY2025 |
| Stewarts Creek Elementary School PTOSmyrna | Form 990-EZ | $45,030FY2025 |
| Jessica Colter ScholarshipGreeneville | Form 990-EZ | $44,138FY2025 |
| Brickey Elementary School PTOKnoxville | Form 990-EZ | $43,790FY2025 |
| Rotary Club of Maryville FoundationKnoxville | Form 990-EZ | $43,411FY2025 |
| Alcoa City Schools Foundation IncAlcoa | Form 990-EZ | $43,392FY2024 |
| Bearden High School Parent Teacher Student OrganizationKnoxville | Form 990-EZ | $42,772FY2025 |
| Lakeland Prep PTOLakeland | Form 990-EZ | $42,567FY2025 |
| Blackman Middle School PTOMurfreesboro | Form 990-EZ | $42,554FY2025 |
| Lightheart Institute IncCarthage | Form 990-N | No figure |
| Viking Booster ClubBristol | Form 990-N | No figure |
| Copper Ridge Elementary Parent Teachers OrganizationPowell | Form 990-EZ | $40,697FY2025 |
| Lynn Jones FoundationCleveland | Form 990-N | No figure |
| Unicoi County Band Boosters Association IncorporatedErwin | Form 990-EZ | $40,494FY2025 |
| Characters of Character NFP IncClarksville | Form 990-N | No figure |
| Hardin Valley Middle School Parent Teacher OrganizationKnoxville | Form 990-N | No figure |
| Rock Creek Elementary Booster Club IncEstill Springs | Form 990-EZ | $40,010FY2024 |