| Parent Booster USA IncMagnolia | Form 990-EZ | $47,131FY2026 |
| Tyler Sanders Foundation for Young FilmmakersHouston | Form 990-N | No figure |
| Ehs Baseball Booster Club IncEnnis | Form 990-EZ | $46,766FY2025 |
| Stratford High School Class of 2028 Project PromHouston | Form 990-EZ | $46,762FY2025 |
| NitroaaFrisco | Form 990-N | No figure |
| Town Center Elementary Parent Teacher OrganizationCoppell | Form 990-EZ | $46,589FY2025 |
| Goldthwaite Booster ClubGoldthwaite | Form 990-N | No figure |
| Medina County a&M ClubHondo | Form 990-EZ | $46,176FY2024 |
| Parent Booster USA IncBullard | Form 990-EZ | $46,043FY2026 |
| PTA Texas CongressMcKinney | Form 990-EZ | $46,029FY2026 |
| First Colony Middle School Parents Active with School Parent TeacherSugar Land | Form 990-EZ | $46,021FY2026 |
| Parent Booster USA IncFort Worth | Form 990-EZ | $45,978FY2026 |
| Braswell Bravo Booster ClubAubrey | Form 990-EZ | $45,925FY2025 |
| Midstream America Scholarship FundSan Antonio | Form 990 | $45,770FY2024 |
| Nottingham Forest Dads ClubHouston | Form 990-N | No figure |
| Clearcreek I S D Support GroupsHouston | Form 990-EZ | $45,749FY2025 |
| Cedar Ridge High School Royalty Booster ClubRound Rock | Form 990-EZ | $45,644FY2025 |
| Plano Senior High School Softball Booster ClubPlano | Form 990-EZ | $45,643FY2025 |
| San Antonio Hispanic Police Officers Org Scholarship FoundatioSan Antonio | Form 990-N | No figure |
| Ibex Club IncDallas | Form 990-EZ | $45,569FY2024 |
| Judy Rucker Elementary PTOProsper | Form 990-N | No figure |
| Alumni Foundation-Houston Dental BranchHouston | Form 990-N | No figure |
| Parent Booster USA IncVictoria | Form 990-EZ | $45,405FY2025 |
| Women Communicators of AustinAustin | Form 990-EZ | $45,373FY2025 |
| Little Cypress Mauriceville Education FoundationOrange | Form 990-EZ | $45,334FY2024 |
| Parent Booster USA IncAustin | Form 990-N | No figure |
| Kappa Alpha Theta Dallas Aulnnae FoundationDallas | Form 990-N | No figure |
| PTA Texas CongressCorinth | Form 990-EZ | $45,289FY2026 |
| Barbers Hill Athletic Boosters Club IncMont Belvieu | Form 990-EZ | $45,207FY2025 |
| San Jacinto County Go Texan IncShepherd | Form 990-EZ | $45,154FY2024 |
| Southlake Carroll Alumni Association IncGrapevine | Form 990-EZ | $45,123FY2024 |
| Bolivar Peninsula Golf Cart Poker Run IncMagnolia | Form 990-EZ | $45,122FY2024 |
| Sharefest Texas IncGrand Prairie | Form 990-N | No figure |
| Sweeny High School Project GraduationSweeny | Form 990-EZ | $44,824FY2026 |
| Mt Tabor Grand Lodge Af & AmHouston | Form 990-N | No figure |
| South San Antonio Isd Educational FoundationSan Antonio | Form 990-EZ | $44,387FY2024 |
| PTA Texas CongressDenton | Form 990-EZ | $44,353FY2026 |
| Danielson Middle School Athletic Booster ClubLeander | Form 990-EZ | $44,261FY2024 |
| Legacy High School Orchestra Booster ClubMidland | Form 990-EZ | $44,138FY2025 |
| North Montgomery County Support GroupConroe | Form 990-EZ | $44,078FY2024 |
| Haberman Educational Foundation IncHouston | Form 990-N | No figure |
| Parent Booster USA IncCorpus Christi | Form 990-EZ | $43,942FY2025 |
| James E Taylor Choir Booster ClubKaty | Form 990-EZ | $43,873FY2026 |
| Cottonwood Creek Elementary PTOCoppell | Form 990-EZ | $43,843FY2025 |
| Larue Miller PTOMidlothian | Form 990-N | No figure |
| Lee Rebels Volleyball Boosters ClubMidland | Form 990-EZ | $43,682FY2026 |
| KHS Health Science Booster ClubKingwood | Form 990-EZ | $43,671FY2025 |
| Lake Country NeighborsEmory | Form 990-EZ | $43,638FY2024 |
| FMHS Wrestling Booster Club IncFlower Mound | Form 990-N | No figure |
| Stratford High School Class of 2029 Project PromHouston | Form 990-EZ | $43,370FY2025 |