1. Bloom Energy
2. Cummins Inc
3. Duke Energy Corporation
4. Eaton Corporation Plc
5. Exelon Corporation
6. Fairbanks Morse
7. Fuelcell Energy Inc
8. General Electric Company
9. Hitachi Ltd
10. National Grid Plc
11. Nrg Energy Inc
12. Power Engineers Incorporated
13. S&C Electric
14. Schneider Electric Se
15. Siemens Ag