1. Accepta Ltd.
2. Agilent Technologies Inc.
3. ALS Limited
4. Applied Membranes Inc.
5. Bio-Rad Laboratories Inc.
6. Danaher Corporation
7. Hanna Instruments
Inc
8. Hitachi High-Technologies Corporation
9. IDEXX Laboratories Inc.
10. Lamotte Company
11. Merck KGaA
12. PerkinElmer Inc.
13. Prerana Laboratories
14. Pure Aqua Inc.
15. Restek Corporation
16. Shimadzu Corporation
17. Taylor Water Technologies LLC
18. Thermo Fisher Scientific Inc.
19. Waters Corporation