1. A & B Environmental Services Inc.
2. AccuStandard Inc.
3. ADE Consulting Group Pty Ltd.
4. Agilent Technologies Inc.
5. ALS Limited
6. Applied Technical Services
LLC
7. AsureQuality Limited
8. Babcock Laboratories Inc.
9. Biotage AB
10. Bureau Veritas SA
11. Danaher Corporation
12. Deveron Corp.
13. Eurofins Scientific SE
14. Greyhound Chromatography and Allied Chemicals Ltd
15. Institut Kirchhoff Berlin GmbH
16. Intertek Group PLC
17. Lanxess AG
18. LCTech GmbH
19. LGC Limited by Cinven Group Ltd.
20. MACHEREY-NAGEL GmbH & Co. KG
21. Merck KGaA
22. Merit Laboratories Inc.
23. Montrose Environmental Group Inc.
24. Ovivo Inc.
25. Pace Analytical Services
LLC
26. PerkinElmer Inc.
27. Restek Corporation
28. Revive Environmental Technology
LLC
29. SGS S.A.
30. Shimadzu Corporation
31. Summit Environmental Technologies Inc.
32. The Chemours Company
33. Thermo Fisher Scientific Inc.
34. Torrent Laboratory Inc
35. T?V S?D AG
36. UL LLC
37. Veolia Environnement S.A.
38. Waters Corporation
39. Wellington Laboratories Inc.