1. Alfa Laval AB
2. City Science Corporation Limited
3. Danfoss A/S
4. ENGIE Group
5. Enwave Energy Corporation
6. Fortum Oyj
7. FVB Energy Inc.
8. Goteborg Energi AB
9. Helen Oy
10. Kanin Energy
11. KELAG Energie & Warme GmbH
12. Keppel DHCS Pte Ltd.
13. Korea District Heating Corporation
14. LOGSTOR A/S
15. Minibems Limited
16. NRG Energy Inc.
17. Orsted A/S
18. Ramboll Group A/S
19. Shinryo Corporation
20. Star Renewable Energy by Star Refrigeration Group
21. Statkraft AS
22. Steag GmbH
23. Vattenfall AB
24. Vital Energi