| Abengoa SA | Spain |
|
| Actelios SPA | Italy |
|
| Alstom | France |
|
| Axeon Holdings PLC | Britain |
|
| Bharat Heavy Electricals Ltd. | India |
|
| Borevind AG | Sweden |
|
| BP plc | Britain |
|
| Canadian Hydro Developers Inc. | Canada |
|
| Carnegie Corp. | Australia |
|
| Distributed Energy Systems | USA |
|
| CNIM | France |
|
| DuPont | USA |
|
| Ebara Corp. | Japan |
|
| EDF Energies Nouvelles SA | France |
|
| Energy Conversion Devices | USA |
|
| Fersa Energias Renovables, S.A. | Spain |
|
| Foster Wheeler | USA |
|
| General Electric | USA |
|
| GrafTech International | USA |
|
| GreenHunter Energy Inc. | USA |
|
| Hitachi Ltd. | Japan |
|
| Hoku Scientific | USA |
|
| Honeywell | USA |
|
| Japan Steel Works | Japan |
|
| Johnson Controls Inc. | USA |
|
| Johnson Matthey PLC | Britain |
|
| Matsushita Elec. Inc. Co. Ltd. | Japan |
|
| Mitsubishi | Japan |
|
| Plambeck Neue Energien AG | Germany |
|
| ReEnergy Group plc | Britain |
|
| Royal Dutch Shell | Britain |
|
| Sechilienne-Sidec | France |
|
| Siemens | Germany |
|
| Tersus Energy PLC | Britain
|
|
| Torishima Pump Manufacturing Co. | Japan |
|
| United Technologies | USA |
|
| Wartsila Corp. | Finland |
