| Conroe High School Band BoostersConroe | Form 990 | $322,404FY2025 |
| Parent Booster USA IncFort Worth | Form 990 | $322,101FY2025 |
| Ninfa Laurenzo Scholarship FundHouston | Form 990 | $321,999FY2024 |
| Ivy League Medical Education Consortium IncHouston | Form 990 | $321,170FY2026 |
| RF 75 Scholarship FoundationSan Antonio | Form 990 | $321,047FY2024 |
| Explorium Denton Childrens MuseumDenton | Form 990 | $320,020FY2023 |
| Friends of the Marble Falls LibraryMarble Falls | Form 990 | $319,965FY2025 |
| Crosby Education FoundationCrosby | Form 990 | $319,180FY2025 |
| Texas Shotgun Shootout and Larryratheal Scholarship AssociationKnott | Form 990 | $319,102FY2025 |
| School Discovery NetworkSan Antonio | Form 990 | $318,228FY2024 |
| Austin Free-NetAustin | Form 990 | $317,942FY2025 |
| Hsi Career CollaborativeSan Antonio | Form 990 | $317,363FY2025 |
| Spilled Milk Community OutreachAustin | Form 990 | $317,231FY2025 |
| Byrne InstituteHouston | Form 990 | $316,343FY2024 |
| Elevate DallasDallas | Form 990 | $315,197FY2025 |
| Al J Condit PTOBellaire | Form 990 | $314,703FY2025 |
| Hillcrest High School Community FoundationDallas | Form 990 | $314,422FY2026 |
| US Dairy Education and Training ConsortiumCollege Station | Form 990 | $314,277FY2025 |
| Ark of the Rainbow CorporationDallas | Form 990 | $314,265FY2025 |
| Alpha State Texas Educational FoundationDallas | Form 990 | $313,764FY2025 |
| Txdla IncAustin | Form 990 | $313,665FY2025 |
| Bridgeland High Athletic Booster ClubCypress | Form 990 | $313,548FY2025 |
| Parent Booster USA IncAustin | Form 990 | $313,039FY2025 |
| Eanes I S D Bridge Point Booster Club IncAustin | Form 990 | $312,990FY2025 |
| Texas Engineering FoundationAustin | Form 990 | $312,139FY2025 |
| Tyler Junior Golf FoundationBullard | Form 990 | $312,124FY2025 |
| The Leander Band Boosters ClubLeander | Form 990 | $311,873FY2025 |
| Flower Mound High School Football Booster ClubFlower Mound | Form 990 | $311,548FY2026 |
| Infinity Christian AcademySan Antonio | Form 990 | $310,603FY2026 |
| Foundation for ChoicePlano | Form 990 | $310,459FY2024 |
| Creekside Christian AcademyNeedville | Form 990 | $310,360FY2022 |
| Wylie Bulldogs Education FoundationAbilene | Form 990 | $310,056FY2024 |
| Bengal Brigade & Cheerleader Booster Club of Katy High SchoolKaty | Form 990 | $309,560FY2025 |
| Parent Booster USA IncCorpus Christi | Form 990 | $309,163FY2025 |
| Midway Booster ClubHewitt | Form 990 | $309,032FY2025 |
| Peaster Education FoundationPeaster | Form 990 | $308,998FY2025 |
| Girl Friends Fund IncDallas | Form 990 | $308,847FY2025 |
| Houston Area Alliance of Black School EducatorsHouston | Form 990 | $308,653FY2023 |
| Holocaust Remembrance AssociationKingwood | Form 990 | $308,018FY2024 |
| Grapevine Mustang Football Booster ClubGrapevine | Form 990 | $306,905FY2025 |
| Beyond Batten Disease FoundationAustin | Form 990 | $306,063FY2025 |
| Lanier Middle School Dance Booster ClubHouston | Form 990 | $305,862FY2025 |
| Family Literacy Network IncHouston | Form 990 | $305,722FY2025 |
| Institute for Civic Education in VietnamHouston | Form 990 | $305,145FY2025 |
| Sunshine Health FoundationDallas | Form 990 | $305,000FY2024 |
| Hutto Athletic Booster ClubHutto | Form 990 | $304,516FY2025 |
| Parent Booster USA IncProsper | Form 990 | $303,789FY2026 |
| Texas High School Welding Series IncWeimar | Form 990 | $303,543FY2025 |
| Melissa Education FoundationMelissa | Form 990 | $302,491FY2025 |
| Parent Booster USA IncAnna | Form 990 | $301,830FY2025 |