| 1 | GTM | Grupo Turistico Magno, S.A. de C.V. | Callsign: Magno, | MEX | AVCODES |
| 2 | GTM | GRAYLINE TOURS OF NASHVILLE | | | SCAC4 |
| 3 | GTMB | GTM | | | SCAC4 |
| 4 | GTMC | G T COMMODITIES LTD | | | SCAC4 |
| 5 | GTMD | G T INTERMODAL | | | SCAC4 |
| 6 | GTMH | GREAT TEAM INC | | | SCAC4 |
| 7 | GTMK | GTM TRUCKING INC | | | SCAC4 |
| 8 | GTML | GRANT, M L | | | SCAC4 |
| 9 | GTMM | GRUPO TMM S A B | | | SCAC4 |
| 10 | GTMO | GRAEBEL/TENNESSE | | | SCAC4 |
| 11 | GTMP | GRAN TURISMO MOTORSPORTS INC | | | SCAC4 |
| 12 | GTMQ | GLOBAL TRANSPORTATION MANAGEMENT LL | | | SCAC4 |
| 13 | GTMR | GENCO TRANSPORTATION MANAGEMENT LLC | | | SCAC4 |
| 14 | GTMS | GARRETT MOVING & STORAGE | | | SCAC4 |
| 15 | GTMU | GTM MANUFACTURING LLC | | USA | BIC |
| 16 | GTMU | GTM Manufacturing | | | RSRV |
| 17 | GTMU | GTM INDUSTRIES LLC | | | SCAC4 |
| 18 | GTMV | GTM SERVICES INC | | | SCAC4 |
| 19 | GTMW | GORDON TRUCKING INC (GP MIDWEST DED | | | SCAC4 |
| 20 | GTMY | GROUPE TAG MARINE INC | | | SCAC4 |
