1. Applus+
2. Ashtead Technology Ltd.
3. Bureau Veritas S.A.
4. Carl Zeiss AG
5. Comet Yxlon GmbH
6. Cygnus Instruments Ltd
7. DEKRA SE
8. Duemme S.P.A.
9. Eddyfi Technologies
10. Fischer Technology Inc.
11. FORCE Technology
12. Fujifilm Holdings Corporation
13. Geecy Apave Pvt. Ltd.
14. General Electric Company
15. Hatch Ltd.
16. Intertek Group PLC
17. ITIS B.V.
18. Labquip NDT Limited
19. Magnaflux Corporation
20. MISTRAS Group
21. NDT Corrosion Control Services Co.
22. Nikon Corporation
23. Olympus Corporation
24. SGS S.A.
25. Sigma NDT Services
26. Sonatest Ltd.
27. T.D. Williamson Inc.
28. TEAM Inc.
29. Zetec Inc.