| 1 | MLT | Moldtransavia | Callsign: Moldtransavia, | MD | AVCODES |
| 2 | MLT | Maritalia | Callsign: Marital, | SN | AVCODES |
| 3 | MLT | Hangar 8 AOC Malta Limited t/a Maleth-Aero | Callsign: Maleth, Name changed to Maleth-Aero AOC Ltd. | M | AVCODES |
| 4 | MLT | Maleth-Aero AOC Ltd | Callsign: Maleth, Name changed from Hangar 8 AOC Malta Limited t/a Maleth-Aero | M | AVCODES |
| 5 | MLT | Maleth-Aero AOC Ltd | IATA: DB, Callsign: Maleth, IATA Prefix: 094, Name changed from Hangar 8 AOC Malta Limited t/a Maleth-Aero | M | AVCODES |
| 6 | MLT | Malmöhus Länstrafik | | S | TRAFFIC |
| 7 | MLTA | MILLS TRANSPORTATION INC | | | SCAC4 |
| 8 | MLTC | MALONE TRANSPORT INC | | | SCAC4 |
| 9 | MLTD | MERCURY LAUNCH & TUG LTD | | | SCAC4 |
| 10 | MLTE | MELTON LOGISTICS LLC | | | SCAC4 |
| 11 | MLTH | MALLOY, T H & SONS INC | | | SCAC4 |
| 12 | MLTI | M & L TRANSPORT INC | | | SCAC4 |
| 13 | MLTJ | M & L TRUCKING INC | | | SCAC4 |
| 14 | MLTM | MULTIMODAL | | | SCAC4 |
| 15 | MLTN | MELTON, J TRUCKING CO INC | | | SCAC4 |
| 16 | MLTO | MALTAIS TRANSPORT ENR | | | SCAC4 |
| 17 | MLTR | M L T TRANSPORTATION | | | SCAC4 |
| 18 | MLTU | MULCON SA | | ROU | BIC |
| 19 | MLTU | CP RAIL INTERMODAL FREIGHT SERVICES | | | SCAC3 |
| 20 | MLTU | CP RAIL INTERMODAL FREIGHT SERVICES | | | SCAC4 |
| 21 | MLTX | Maple Leaf Tank Car Co. | 7/1935; 7/1937 (not listed) | | NAKINA |
| 22 | MLTX | MAPLE LEAF TANK CAR CO. | | | PWRC |
| 23 | MLTY | MLT TRANSPORTATION LLC | | | SCAC4 |
