1. 3M Company
2. Aquatech International LLC
3. Beijing Enterprises Water Group Limited
4. Bioxica
5. Buckman Laboratories Pty Ltd.
6. Cortec Corporation
7. Ecoprog GmbH
8. Emerson Electric Co.
9. Hitachi
Ltd.
10. Indian Ion Exchange & Chemicals Limited
11. Nikkei Inc.
12. Reciclar Technologies Private Limited
13. SUEZ SA
14. Thermax Limited
15. WCS Environmental Ltd.