Hitachi Limited
Mitsubishi
Toshiba Corporation
ABB Limited
Acciona SA
Ansaldo Energia
Avio SpA
BHEL
Capstone Turbine Corporation
Caterpillar Incorporated
Doosan
Gamesa
General Electric Company
GKN plc
Honeywell
IHI Corporation
MAN SE
MTU Aero
Nordex SE
Rolls-Royce Holdings plc
SAFRAN SA
Siemens AG
Sinovel Wind Group
Suzlon Energy Limited
United Technologies
Vestas
Voith GmbH