Ballard Power Systems, Bloom Energy, Capstone Turbine, Toshiba, Ceres Power, First Solar, Ansaldo Energia, Johnson Matthey Fuel Cells, Mitsubishi Heavy Industries, GE, Siemens, LG Fuel Cell Systems, Aisin Seiki, Panasonic, Delphi, Doosan Fuel Cell, Wuxi Suntech Power, Neah Power Systems, Shanghai EverPower Technologies