| 1 | MAL | Morningstar Air Express Inc. | Callsign: Moringstar, | CDN | AVCODES |
| 2 | MAL | McAlpine Aviation | IATA: RM, Callsign: Mcalpine, | GB | AVCODES |
| 3 | MAL | Morningstar Air Express | | | ICAO1 |
| 4 | MAL | Michigan Air-Line Ry. Co. | added 4/2007 | | NAKINA |
| 5 | MAL | MICHIGAN AIR-LINE RWY. CO. | | | PWRC |
| 6 | MAL | MICHIGAN AIR-LINE RAILWAY CO | | | SCAC4 |
| 7 | MALA | MALAYSIA INTERNATIONAL SHIPPING COR | | | SCAC4 |
| 8 | MALA | Malayan Airways | | MAL | TRAFFIC |
| 9 | MALB | M & A LOGISTICS INC | | | SCAC4 |
| 10 | MALB | Miejski Zakład Komunikacji w Malborku | City: Malbork | PL | TRAFFIC |
| 11 | MALC | MALCA-AMIT ARMORED INC | | | SCAC4 |
| 12 | MALD | MALDONADO SUAREZ, JESUS | | | SCAC4 |
| 13 | MALE | MALLARD LOGISTICS INC | | | SCAC4 |
| 14 | MALF | MESSAGERIES ALF INC | | | SCAC4 |
| 15 | MALG | MAPROUTE LOGISTICS INC | | | SCAC4 |
| 16 | MALH | MIAMI AIR LEASE | | | SCAC4 |
| 17 | MALJ | M A L TRANSPORTATION INC | | | SCAC4 |
| 18 | MALK | MALLAK TRUCKING INC | | | SCAC4 |
| 19 | MALL | MCALLISTER, R FUELS | | | SCAC4 |
| 20 | MALN | MARTINEZ LEON, SANTA | | | SCAC4 |
| 21 | MALO | MATLOCK TRANSPORTATION INC | | | SCAC4 |
| 22 | MALOW | MaLoWa Bahnwerkstatt GmbH | | DE | VKM |
| 23 | MaLoWa | Mansfelder Lokomotiv -und Waggonbau Bahnwerksatt GmbH | Benndorf | D | privat-bahn.de |
| 24 | MALOWA | MaLoWa Bahnwerkstatt GmbH | Real: MALOW | D | TRAFFIC |
| 25 | MALP | MALPENSA S.R.L. | | RO | VKM |
| 26 | MALU | MAERSK A/S | | DK | BIC |
| 27 | MALU | A P MOLLER | | | SCAC4 |
| 28 | MALUS | Malus Aps | | DK | VKM |
| 29 | MALV | MARCUSSON LUVERNE | | | SCAC4 |
| 30 | MALW | MAAC LLC | | | SCAC4 |
| 31 | MALX | Mid-America Locomotive & Car Repair, Inc. | 7/2000-7/2005 (not listed) | | NAKINA |
| 32 | MALX | Mathieson Alkali Works, Inc. | 7/1923-7/1937 | | NAKINA |
| 33 | MALX | Mid-America Locomotive & Car Repair, Inc. | Jul-00 | | NRHS |
| 34 | MALX | *MATHIESON ALKALI WORKS, INC. | | | PWRC |
| 35 | MALX | +MID-AMERICA LOCOMOTIVE & CAR REPAIR INC | | | PWRC |
| 36 | MALX | Mid-America Locomotive and Car Repair | | | RSRV |
| 37 | MALY | MALLORY TRANSPORTATION | | | SCAC4 |
| 38 | MALZ | AMERICAN PRESIDENT LINES, INC. | | | PWRC |
| 39 | MALZ | American President Lines | | | RSRV |
| 40 | MALZ | AMERICAN PRESIDENT LINES, INC. | | | SCAC3 |
| 41 | MALZ | AMERICAN PRESIDENT LINES, INC. | | | SCAC4 |
