ABB Ltd., Alstom SA, Areva SA, Areva T D AG, Areva T D Hòlding SA, Areva T D SA, Fuji Electric Hòldings Co., Ltd, Fuji Electric Systems Co., Ltd., Hitachi Ltd., Hitachi Europe Ltd., Japan AE Power Systems Corp., Mitsubishi Electric Corp., Nuova Magrini Galileu Spa, Schneider Electric SA, Siemens AG, Siemens AG Österreich, Siemens Transmission Distribution SA, Siemens Transmission Distribution Ltd., Toshiba Corp.und VA Tech Transmission Distribution GmbH Co.