1. 3M
2. Entegris
3. Flowserve Corp
4. Grundfos Holding A/S
5. Hangzhou Fuyang Bona Water Purification Equipment Co Ltd
6. Hydranautics (A Nitto Group Company)
7. Hydrophile Ro Components
8. Kovalus Separation Solutions
9. Ksb Se & Co Kgaa
10. Parker Hannifin Corp
11. Pentair
12. Shakti Pumps (India) Ltd
13. Toray Industries Inc
14. Veolia
15. Xylem