1. Air Products and Chemicals Inc.
2. Cummins Inc.
3. Epoch Energy Technology Corporation
4. Honeywell International Inc.
5. Idroenergy
6. KEP TECHNOLOGIES SA
7. Linde PLC
8. LNI SWISSGAS S.R.L.
9. Nel ASA
10. PEAK Scientific Instruments Ltd.
11. Praxair Technology
Inc
12. SciMed Ltd.
13. Showa Denko K. K.
14. SilPac
15. Teledyne Energy Systems Inc.
16. VICI AG International