1. ABN Cleanroom Technology NV
2. AIRTECH System Co. Ltd.
3. Alpiq Group
4. Ardmac
5. Bouygues E&S InTec Schweiz AG
6. Clean Air Products
7. Clean Rooms International Inc.
8. COLANDIS GmbH
9. Connect 2 Cleanrooms Ltd
10. Genano Ltd.
11. Helapet Ltd.
12. Hemair Systems India Limited
13. Integrated Clean room by Takasago Thermal Engineering Group
14. ITW Contamination Control BV
15. KIMBERLY-CLARK CORPORATION
16. Lennox Clean Air Technologies
17. M+W Group
18. Nicos Group Inc.
19. OCTANORM Inc.
20. Parteco S.r.l.
21. Taikisha Ltd.
22. Terra Universal Inc.