1. ACRO Automation Systems Inc.
2. Air Liquide S.A.
3. Air Products and Chemicals Inc.
4. Atlantic China Welding Consumables Inc.
5. British Oxygen Company by Linde plc
6. Bug-O Systems Inc.
7. Carl Cloos Schweisstechnik GmbH
8. Coherent Inc.
9. Daihen Corporation
10. Emerson Electric Co.
11. Forward Sonic Tech Co. Ltd.
12. Fronius International GmbH
13. GCE Holding AB
14. Herrmann Ultraschalltechnik GmbH & Co. KG
15. Hyundai Welding Co. Ltd
16. Illinois Tool Works Inc
17. KEMMPI OY
18. Kobe Steel
Ltd.
19. Koike Aronson Inc.
20. Kormax System Inc.
21. Lincoln Electric Holdings Inc.
22. Matheson Tri-Gas Inc.
23. Messer Group GmbH
24. Mitco Weld Products Pvt. Ltd.
25. Nippon Avionics Co. Ltd.
26. Obara Corporation
27. Panasonic Connect Co. Ltd.
28. Praxair Inc.
29. Sonics & Materials Inc.
30. Sonobond Ultrasonics Inc.
31. Tech-Sonic Inc.
32. Telsonic AG
33. Tianjin Golden Bridge Welding Materials Internationl Trading Co. Ltd.
34. voestalpine B?hler Welding GmbH