| 1 | TMX | Transportacion Aerea Mexicana (TAM) | Callsign: Tramex, | MEX | AVCODES |
| 2 | TMX | Tramon Air CC | Callsign: Tramon, Founded in 1995. Commenced operations in 1998. Ceased operations during 2006. | ZA | AVCODES |
| 3 | TMX | Tramon Air | | | ICAO1 |
| 4 | TMX | Union Refrigerator Transit Co. (reporting marks stand for Mars Inc.) | 7/1937-4/1947 | | NAKINA |
| 5 | TMX | Union Refrigerator Transit Lines, a Division of the General American Transportation Corp. | 1/1950-10/1966 | | NAKINA |
| 6 | TMX | Union Refrigerator Transit Lines | eliminated 7/1967 | | NAKINA |
| 7 | TMX | Mars Inc. | Apr-38 | | NRHS |
| 8 | TMX | Union Refrigerator Transit Lines, a Division of the General American Transportation Corp. | 1/52-10/66 | | NRHS |
| 9 | TMX | Union Refrigerator Transit Lines | eliminated 7/67 | | NRHS |
| 10 | TMX | UNION REFRIGERATOR TRANSIT LINES (MARS, INC.) | | | PWRC |
| 11 | TMXA | TIMAX CONNECTION INC | | | SCAC4 |
| 12 | TMXB | TOMAMEX TRUCKING COMPANY INC | | | SCAC4 |
| 13 | TMXD | TMX INC | | | SCAC4 |
| 14 | TMXE | TIMBER EXPRESS | | | SCAC4 |
| 15 | TMXF | TRANSMEX TRUCKING | | | SCAC4 |
| 16 | TMXG | TIMEX LOGISTIX INC | | | SCAC4 |
| 17 | TMXI | TRANS-MEX INC SA DE CV | | | SCAC4 |
| 18 | TMXK | TAMANA, MIKE XPRESS ENTERPRISES LLC | | | SCAC4 |
| 19 | TMXL | TRIMEX INTERNATIONAL | | | SCAC4 |
| 20 | TMXM | TM TRANSPORT | | | SCAC4 |
| 21 | TMXN | T & M TRANSPORT LLC | | | SCAC4 |
| 22 | TMXO | TRANSPORTES MAX RO | | | SCAC4 |
| 23 | TMXR | The Texas Mexican Ry. Co. | Real: TM | MEX | TRAFFIC |
| 24 | TMXS | TMX SHIPPING INC | | | SCAC4 |
| 25 | TMXT | TRAILMEX SERVICES INC | | | SCAC4 |
| 26 | TMXY | TRANSPLACE MEXICO LLC | | | SCAC4 |
