1. ABB Ltd.
2. Air Squared Inc.
3. Alfa Laval AB
4. Alstom SA
5. Anguil Environmental Systems Inc.
6. Astec Industries Inc.
7. AURA GmbH & Co. KG
8. Borsig GmbH
9. Bosch Industriekessel GmbH
10. Boustead International Heaters Limited
11. Cain Industries Inc.
12. Cannon Bono Energia
13. Catalytic Products International
14. China Energy Recovery Inc.
15. Clayton Industries
16. Cummins Inc.
17. Echogen Power Systems
18. Econotherm Limited
19. Enerquip Thermal Solutions
20. Epcon Industrial Systems Inc.
21. Exergy International Srl
22. Exodraft A/S
23. Forbes Marshall
24. GEA Group AG
25. General Electric Company
26. Gulf Coast Green Energy
27. HeatMatrix Group B.V.
28. IHI Corporation
29. Industrial Boilers America
30. James Resources
LLC
31. John Wood Group PLC
32. Kawasaki Heavy Industries
Ltd.
33. KNM Group
34. Larsen & Toubro Limited
35. Matthews Environmental Solutions
36. Mitsubishi Heavy Industries
Ltd.
37. Muhibbah Engineering (M) Bhd.
38. Munters Corporation
39. Nacah Tech LLC
40. Ormat Technologies Inc.
41. Penn Separator Corp.
42. Procedyne Corp.
43. Promec Engineering
44. Siemens AG
45. Sigma Thermal Inc.
46. Somas Instrument AB
47. Terrapin Geothermics
48. Thermal Fluid Systems Inc.
49. Thermax Limited
50. W. Baelz & Sohn GmbH & Co.