* Pratt & Whitney (P&W): An American aerospace manufacturer, P&W supplies the PW1000G PurePower engines for Airbus aircraft.
* International Aero Engines (IAE): A multinational consortium, IAE supplies the V2500 engines for Airbus aircraft.
* Rolls-Royce: A British multinational aerospace and defence company, Rolls-Royce supplies the Trent engines for Airbus aircraft.