Antig Technology Co. Ltd. (Taiwan)
Viaspace Inc. (US)
Neah Power Systems Inc. (US)
PolyFuel Inc. (US)
Oorja Protonics Inc. (US)
Samsung SDI Co Ltd (South Korea)
Toshiba Corporation (Japan)
Fujikura Ltd. (Japan)
Panasonic Corporation (Japan)
MTI Microfuel Cells Inc. (US)