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:
Aeralpi
Aerea Teseo
Aero Trasporti Italiani - ATI (merged into Alitalia)
Aeroitalia
Air Dolomiti
Air Industria
Air One Executive
Ala Littoria
Alimediterranea
Aliserio
Alitalia
Altair Linee Aeree (ceased operations ca 1986)
Avio Linee Italiane - ALI
Avioligure
Avioriprese Jet Executive (taken over by SLAM Lavori Aerei in 2003)
Besit Servizi Aerei (presumably ceased operations ca 1999)
E.A.S. Aeroservizi
Eurofly Service
Eurojet Italia
Groupair Srl
Italair
ItAli Airlines
Itavia
Linee Aeree Italiane - LAI (taken over by Alitalia 1957)
Linee Aeree Transcontinentali Italiane - LATI
Meridiana (founded as Alisarda; renamed Meridiana in 1991; merged with Eurofly in 2010 into Meridiana Fly)
Minerva Airlines
SiFly
SISAM - Società Italiana Servizi Aerei Mediterranei
Società Aerea Mediterranea - SAM
Società Nazionale Metanodotti (SNAM)
TAS Airways
Transavio
Unifly
Volare Airlines
Windjet

Corporations:
Estramed Spa
Ferruzzi Spa
ICIPA
Locazione Finanziare
Maniglia Construzioni
Spei Leasing Spa

Flying schools, Aeroclubs, Paraclubs:
Pull Out Skydiving

Government:
Corpo Forestale dello Stato - CFS
Dipartimento della Protezione Civile Italiana
SOREM - Società Richerche Esperienze Meteorologiche

Manufacturers:
Caproni
Macchi
Piaggio Aero Industries

Military:
Aeronautica Militare Italiana - AMI
Corrieri Aerei Militari

Private:
Enrico Recchi