1. Absolute Standards Inc.
2. Agilent Technologies Inc.
3. American Proficiency Institute
4. AOAC International
5. Bharat Petroleum Corporation Limited
6. Bio-Rad Laboratories Inc.
7. BIPEA
8. Charles River Laboratories International
Inc
9. EffecTech Limited
10. Envira Sostenible S.A.
11. Eurofins Scientific SE
12. Fera Science Ltd.
13. Fluxana GmbH & Co. KG
14. Food Safety Net Services
15. Global Proficiency Ltd.
16. HN Proficiency Testing Inc.
17. INSTAND e.V.
18. Jalan and Company
19. Landmark Material Testing & Research Laboratory Pvt. Ltd.
20. LGC Ltd.
21. Merck KGaA
22. Neogen Corporation
23. NSI Lab Solutions
24. Phenova Inc.
25. Quality Assurance And Control Systems Ltd.
26. QuoData GmbH
27. Randox Laboratories Ltd.
28. RTI Laboratories
29. SGS S.A.
30. The American Oil Chemists’ Society
31. Trilogy Analytical Laboratory
32. Waters Corporation
33. Worldwide Antimalarial Resistance Network