| 1 | L9 | Air Mali, S.A. | ICAO: MLI, Callsign: Air Mali, IATA Prefix: 109, Suspended operations on 07 April 2003. Designator L9 reinstated by IATA | RMM | AVCODES |
| 2 | L9 | Air Logistics LLC | ICAO: ALG, Callsign: Airlog, Name changed to Bristow US, LLC | USA | AVCODES |
| 3 | L9 | Teamline Air Luftfahrt GmbH | ICAO: TLW, Callsign: Teamline, | A | AVCODES |
| 4 | L9 | Belle Air Europe s.r.l. | ICAO: BAL, Callsign: Belle Italy, Ceased operations on 25 November 2013. | I | AVCODES |
| 5 | L9 | Bristow US, LLC | ICAO: BTZ, Callsign: Bristow Group, | USA | AVCODES |
| 6 | L9 | Lumiwings S.A. | ICAO: LWI, Callsign: Lumi, Founded in 2015. Commenced operations during May 2018. | GR | AVCODES |
