Aerosila
Airmaster Propellers
Canadian Propeller Ltd.
Culver Props Inc
Curtiss-Wright Corporation
Dowty Rotol
Electravia
FP-propeller Srl
GE Aviation
Hartzell Propeller
H?lices E-Props
Hercules Propellers Ltd
McCauley Propeller Systems
MT-Propeller Entwicklung GmbH
Ratier Figeac
Sensenich Propeller
Ultra Electronics Holdings
UTC Aerospace Systems
Wartsila India Limited
Whirlwind Propellers