| 1 | MAD | Maple Air Services Ltd. | Callsign: Maple Air, Ceased Operations | CDN | AVCODES |
| 2 | MAD | M.A.S.H. Service GmbH | Founded in 2009. Ceased operations during January 2012. Declared bankrupt 10 July 2012. | A | AVCODES |
| 3 | MAD | Malone Aircharter, Inc. | Callsign: Malone, | USA | AVCODES |
| 4 | MAD | Maple Air Services | | | ICAO1 |
| 5 | MADA | MADRAS INTERNATIONAL LTEE | | | SCAC4 |
| 6 | MADB | MARSH DISTRIBUTING COMPANY | | | SCAC4 |
| 7 | MADC | MADERE | | | SCAC4 |
| 8 | MADD | MADDEN'S TRANSFER & STORAGE, INC | | | SCAC1 |
| 9 | MADE | MARDENS INC | | | SCAC4 |
| 10 | MADEL | Usługi Transportu Drogowego w Zakresie Przewozu Osób Krzysztof Mądel | | PL | TRAFFIC |
| 11 | MADF | MADERA FORWARDING INC | | | SCAC4 |
| 12 | MADI | MADISON TRANSFER AND STORAGE INC | | | SCAC4 |
| 13 | MADJ | M A D J TRUCKING ING | | | SCAC4 |
| 14 | MADL | MASON & DIXON LINES INC | | | PWRC |
| 15 | MADL | MASON AND DIXON LINES | | | SCAC1 |
| 16 | MADL | MASON AND DIXON LINES | | | SCAC4 |
| 17 | MADM | M A D LOGISTICS | | | SCAC4 |
| 18 | MADO | MADLAND, E BRANT | | | SCAC4 |
| 19 | MADP | MACSTEEL SERVICE CENTERS USA | | | SCAC4 |
| 20 | MADQ | M A D TRANSPORT | | | SCAC4 |
| 21 | MADR | MADRAS FREIGHT LINES | | | SCAC4 |
| 22 | MADR | Mülheimer Verkehrs Gesellschaft mbH | Real: MVG, City: Mülheim an der Ruhr | D | TRAFFIC |
| 23 | MADS | MAD SCIENCE PRODUCTIONS | | | SCAC4 |
| 24 | MADT | MADERAS & MATERIALES JR | | | SCAC4 |
| 25 | MADU | MSC- MEDITERRANEAN SHIPPING COMPANY S.A. | | CH | BIC |
| 26 | MADU | MAGNUM SPEDITIONSGELLESHAFT GMBH | | | PWRC |
| 27 | MADU | Magnum Speditionsgelleshaft | | | RSRV |
| 28 | MADU | MAGNUM SPEDITION GMBH | | | SCAC4 |
| 29 | MADV | M&D TRANSFER, INC | | | SCAC1 |
| 30 | MADV | M & D TRANSFER LLC | | | SCAC4 |
