Panasonic
Ballard Power Systems
TW Horizon Fuel Cell Technologies
Ceres
Toshiba America Energy Systems Corporation (TAES)
Plug Power Inc.
Nikola Corporation
Mitsubishi Hitachi Power Systems
Shanghai Pearl Hydrogen Energy Technology Co.
FuelCell Energy Inc.
AFC Energy
Nedstack Fuel Cell Technology
Doosan Fuel Cell Co. Ltd.
Bloom Energy
KYOCERA Corporation