1. Advent Technologies Holdings Inc.
2. AFC Energy
3. AFC Energy PLC
4. Altergy Systems
5. Aris Renewable Energy
LLC
6. Ballard Power Systems Inc.
7. Bloom Energy Corporation
8. Cummins Inc.
9. Denso Corporation
10. FuelCell Energy Inc.
11. Fuji Electric Co. Ltd.
12. GenCell Ltd.
13. Horizon Fuel Cell Technologies
14. Intelligent Energy Limited
15. Mitsubishi Heavy Industries
Ltd.
16. Panasonic Holdings Corporation
17. Plug Power Inc.
18. POSCO ENERGY
19. SFC Energy AG
20. Toshiba Corporation