1. Arvia Water Technologies Ltd.
2. ClearBlu Environmental
3. Ecolab
4. Evans Equipment and Environmental
5. Evoqua Water Technologies LLC
6. Fluence Corporation Limited
7. General Electric Company
8. Gonvarri Material Handling AS
9. Hitachi
Ltd.
10. Melbourne Water
11. Natural Systems Utilities
12. Reclaim Equipment Company
13. Siemens AG
14. Veolia Environnement SA
15. Water Recycling Systems Inc.