G
- Garrett AiResearch — U.S.
- Garuff
- Gas Turbine Research Establishment — India
- GE Honda Aero Engines — U.S.
- GE-Aviation — U.S.
- General — U.S.
- General Aircraft Ltd.
- General Electric
- General Electric/Rolls-Royce
- General Motors — U.S.
- Goebel
- Giannini
- Glushenkov — Russia/Soviet Union
- Gnome et Rhône — France
- le Rhone — France
- Gobron-Brillié
- Green — UK
- Grégoire
- Grizodubov
- Guiberson — U.S.
- Gyro
Read more about this topic: List Of Aircraft Engine Manufacturers