1. 3M Company
2. Alfa Laval Ab
3. AMS Technologies
4. Axeon Water Technologies
5. Koch Industries Inc.
6. Microdyn-nadir Gmbh
7. Nafigate Corporation
A.S.
8. Nanomembrane S.R.O
9. Nitto Denko Corporation
10. Pall Corporation
11. Pentair PLC
12. Risingsun Membrane Technology Co. Ltd.
13. Spur A.S.
14. Teijin Limited
15. Toray Industries Inc.