1. Advent Technologies Holdings Inc.
2. Air Liquide S.A.
3. Asahi Kasei Corporation
4. Bloom Energy Corporation
5. Cummins Inc.
6. Enapter S.r.l.
7. Erre Due s.p.a.
8. Green Hydrogen Systems A/S
9. H-TEC SYSTEMS GmbH by MAN Energy Solutions SE
10. H2 Core Systems GmbH
11. h2e Power Systems Inc.
12. Hoeller Electrolyzer GmbH
13. Hydrogen Optimized Inc.
14. HydrogenPro ASA
15. iGas energy GmbH
16. INEOS AG
17. ITM Power PLC
18. John Cockerill SA
19. Linde PLC
20. McPhy Energy S.A.
21. Nel ASA
22. Next Hydrogen Solutions Inc.
23. Ningbo TopCorr Corrosion Technology Co.Ltd.
24. Ohmium International Inc.
25. OxEon Energy
LLC
26. O? Stargate Hydrogen
27. PERIC Hydrogen Technologies Co. Ltd
28. Plug Power Inc.
29. Pure Energy Centre
30. Siemens Energy AG
31. Sono-Tek Corporation
32. Sumitomo Corporation
33. Sunfire GmbH
34. thyssenkrupp AG
35. Topsoe A/S
36. Toshiba Corporation