ABB Ltd
Alfanar Group
Cam Tran Co Ltd
CG Power and Industrial Solutions Ltd
China Amorphous Technology Co. Ltd
China Power Equipment Inc. Comtrafo S.A. Fuji Electric Co Ltd
GE Power
Hammond Power Solutions Inc
Han Chang Trans Co Ltd
Hitachi Ltd
Howard Industries Inc
Hyosung Power & Industrial Systems Performance Group
Hyundai Heavy Industries Co Ltd
Kirloskar Electric Co Ltd
LSIS Co Ltd
Mitsubishi Electric Corporation
Nanjing Yangdong Electric Co. Ltd. Pioneer Transformers Ltd
Poongsan Electric Co.Ltd. Raychem RPG (P) Ltd
Voltamp Transformers Ltd
WEG SA