This is a list of aircraft engine manufacturers both past and present.
- Allison Engine Company
- Austro-Daimler
- BMW
- Bristol Engine Company
- Daimler-Benz
- EADS
- General Electric
- General Motors
- Hispano-Suza
- Hitachi
- International Aero Engines
- Junkers
- Lycoming
- Napier & Son
- Packard
- Pratt & Whitney
- Renault
- Rolls-Royce
- Wright Company