| 1 | M2 | Mario's Air, Inc. | Designator M2* recalled by IATA | USA | AVCODES |
| 2 | M2 | Mahfooz Aviation (Gambia) Ltd. | ICAO: MZS, Callsign: Mahfooz, Name changed from Mahfooz Aviation G Limited | SA | AVCODES |
| 3 | M2 | Mahfooz Aviation G. Limited | ICAO: MZS, Callsign: Mahfooz, Name changed to Mahfooz Aviation (Gambia) Ltd. | SA | AVCODES |
| 4 | M2 | Air Manas d/b/a Air Manas Ltd. Air Company | ICAO: MBB, Callsign: Air Manas, Founded in 2006. IATA designator changed to ZM | KS | AVCODES |
| 5 | M2 | MHS Aviation GmbH | ICAO: MHV, Callsign: Snowcap, | D | AVCODES |
| 6 | M2 | Sunrise Airlines, Inc. d/b/a Millon Express | ICAO: MXS, Callsign: Millon Express, IATA Prefix: 592, | USA | AVCODES |
