| 1 | TMO | COPAC RAIL [CONTINENTAL PACIFIC RWY.; VITEBSK SEAWAY & CONTINENTAL RWY.] | | | PWRC |
| 2 | TMO | Vitebsk Seaway and Continental Railway (Lincoln Pacific Railway) | | | RSRV |
| 3 | TMOC | TRANSPORTES MOCTEZUMA | | | SCAC4 |
| 4 | TMOD | TRI-MODAL DISTRIBUTION SERVICES, INC | | | SCAC1 |
| 5 | TMOD | TRI-MODAL DISTRIBUTION SERVICES INC | | | SCAC4 |
| 6 | TMOE | TRANSPORTES MONTES | | | SCAC4 |
| 7 | TMOF | TRADITIONAL MARINE OUTFITTERS | | | SCAC4 |
| 8 | TMOI | TOMCO INC | | | SCAC4 |
| 9 | TMOL | TRANSPORTES MOLINA | | | SCAC4 |
| 10 | TMOM | THOMAS OIL COMPANY INC | | | SCAC4 |
| 11 | TMON | TRANSMONDE 2000 INC | | | SCAC4 |
| 12 | TMOR | TRANSPORT MORNEAU INC | | | SCAC4 |
| 13 | TMOS | TRANSPORTES MONROY SCHIAVON SA DE C | | | SCAC4 |
| 14 | TMOT | TURNER MOTORSPORT | | | SCAC4 |
| 15 | TMOV | THORNTON MOVING & STORAGE | | | SCAC4 |
| 16 | TMOX | Textiles Monterrey, S.A. | 1/1950-7/1954; eliminated 1/1956 | | NAKINA |
| 17 | TMOX | Textiles Monterrey, S.A. | Jan-52 | | NRHS |
| 18 | TMOX | TEXTILES MONTERREY, SA | | | PWRC |
| 19 | TMOY | TRANSPORTES MONTEBLANCO | | | SCAC4 |
