1. ABB Ltd.
2. Advent Technologies Holdings Inc.
3. Agfa-Gevaert N.V.
4. Air Liquide S.A.
5. Asahi Kasei Corporation
6. Avium
LLC
7. Bloom Energy Corporation
8. Cummins Inc.
9. Enapter S.r.l.
10. Erre Due s.p.a.
11. General Electric Company
12. Green Hydrogen Systems A/S
13. H-TEC SYSTEMS GmbH
14. H2 Core Systems GmbH
15. h2e Power Systems Inc.
16. H2U Technologies Inc.
17. Hoeller Electrolyzer GmbH
18. Hydrogen Optimized Inc.
19. Hysata Pty Ltd
20. Hystar AS
21. Iberdrola
S.A.
22. iGas energy GmbH
23. INEOS AG
24. ITM Power plc
25. John Cockerill S.A.
26. Linde PLC
27. LONGi Green Energy Technology Co. Ltd.
28. McPhy Energy S.A.
29. Nel ASA
30. Next Hydrogen Solutions Inc.
31. Ohmium International Inc.
32. OxEon Energy
LLC
33. O? Stargate Hydrogen
34. Plug Power Inc.
35. Pure Energy Centre
36. Siemens AG
37. SolydEra SpA
38. Sumitomo Corporation
39. SunFire GmbH
40. Sungrow Power Supply Co. Ltd.
41. thyssenkrupp AG
42. Topsoe A/S
43. Toshiba Corporation