A list of aircraft operators that have that have suffered an accident, serious incident or hijacking. The list may also contain defunct airlines or airlines that in the meantime have changed their name or have merged.

Airlines:
Air Service Hungary (formerly MÉM Repülögépes Szolgálat)
Farnair Hungary
Malert - Magyar Légiforgalmi Rt.
Malev Hungarian Airlines (founded as Maszoflet, renamed in 1954)
Maszovlet (became Malev Hungarian Airlines)

Flying schools, Aeroclubs, Paraclubs:
Agricultural High School
Air Patrol
Hungarian Aeronautical Association
Sky Escort Aero-Club Hungary

Government:
MÉM Repülögépes Szolgálat (became Air Service Hungary)

Military:
Magyar Honvédelmi Szövetség - MHSZ
Magyar Légierö - Hungarian Air Force

Special operations (survey, crop spraying etc.):
Szemp Air