| 1 | THM | Thai Global Airline Company Limited | IATA: YH, Callsign: Thai Global, Ceased operations | T | AVCODES |
| 2 | THM | Airmark Aviation | | | ICAO1 |
| 3 | THM | Train Hungary Magánvasút Kft | | H | TRAFFIC |
| 4 | THM | Train Hungary Magánvasút Kft | | HU | VKM |
| 5 | THMA | THIBODEAU, MARTIN | | | SCAC4 |
| 6 | THMB | THOMPSON, BILL TRANSPORT INC | | | SCAC4 |
| 7 | THME | THOMAS & THOMAS ENTERPRISE LLC | | | SCAC4 |
| 8 | THMH | THERMO DISTRIBUTION INC | | | SCAC4 |
| 9 | THMI | THOMPSON TRUCKING CO INC | | | SCAC4 |
| 10 | THMK | THERMO KING OF FARGO | | | SCAC4 |
| 11 | THML | THOMPSON TRUCKING L C | | | SCAC4 |
| 12 | THMN | THYSSEN MINING | | | SCAC4 |
| 13 | THMS | THOMAS AND SONS | | | SCAC4 |
| 14 | THMW | THOMAS, WILLIAM, TRUCKING, INCORPORATED | | | SCAC1 |
