| 1 | MWI | Malawian Airlines 2014 | IATA: 3W, Founded in July 2013. Commenced operations on 31 January 2014. Name changed to Malawian Airlines 2014 t/a Malawi Airlines during 2016. | MW | AVCODES |
| 2 | MWI | Malawian Airlines 2014 t/a Malawi Airlines | IATA: 3W, Callsign: Malawian, Founded in July 2013. Commenced operations on 31 January 2014. Name changed from Malawian Airlines 2014 during 2016. | MW | AVCODES |
| 3 | MWID | MIDWEST INLAND TRANSPORT SERVICES I | | | SCAC4 |
| 4 | MWIK | MACKSTEEL WAREHOUSE INC | | | SCAC4 |
| 5 | MWIN | MARTINDALE WINDOW & DOOR INC | | | SCAC4 |
| 6 | MWIR | M W INTERMODAL LLC | | | SCAC4 |
| 7 | MWIZ | MEIJER WINES, INC. | | | PWRC |
| 8 | MWIZ | MIDLAND WEST INC | | | SCAC4 |
