1. 3M Company
2. Andersen Sterilizers Inc.
3. Atlas Copco Group
4. Babcock & Wilcox Enterprises Inc.
5. Becton
Dickinson and Company
6. Burckhardt Compression AG
7. Cimarron Energy Inc.
8. ClorDiSys Solutions Inc.
9. Croft Production Systems Inc.
10. Danaher Corporation
11. DILO Armaturen und Anlagen GmbH
12. ELCO GmbH
13. Gas Processing Equipment Pvt. Ltd.
14. GENERON
15. Grayford Industrial
16. Honeywell International Inc.
17. Koch Industries Inc.
18. KWS Manufacturing Company Ltd.
19. MAN Energy Solutions SE
20. RSD Engineering Solutions SL.
21. Schlumberger Limited
22. Sinoma Science & Technology (Chengdu) Co. Ltd.
23. Sivalls Inc.
24. SOLSTEO
25. Sterifre Medical Inc.
26. Sterigenics U.S. LLC
27. Steris Corporation
28. TerraVest Industries Inc.
29. TOMI Environmental Solutions
Inc
30. Van Air Systems
31. WITT Gasetechnik GmbH & Co. Produktions- und Vertriebs-KG