ABB (Switzerland)
Siemens (Germany)
Toshiba Corporation (Japan)
Mitsubishi Electric Corporation (Japan)
Altrafo Srl (Italy)
Emco Limited (India)
Alstom (France)
JST Group (France)
International Electric Co Ltd (South Korea)
Schneider Electric (France)
Hind Rectifiers Limited (India)
CG Power and Industrial Solutions Limited (India)
and WEG (Brazil)