1. ALSTOM Group
2. Anguil Environmental Systems Inc.
3. Babcock & Wilcox Enterprises Inc.
4. CR Clean Air Group
5. Donaldson Company Inc.
6. D?rr Group
7. ECS Environmental Systems
8. Fujian Longking Co. Ltd.
9. GEA Group Aktiengesellschaft
10. John Cockerill Group
11. John Wood Group PLC
12. Larsen & Toubro Limited
13. Mitsubishi Heavy Industries
Ltd.
14. Siemens AG
15. Thermax Ltd.
16. thyssenkrupp Industrial Solutions AG