1. BES Group
2. Biozone Corporation
3. CMP
4. EBARA Technologies Inc.
5. ESCO International
6. Evoqua Water Technologies LLC
7. Faraday Ozone
8. Lenntech B.V.
9. METAWATER Co. Ltd.
10. Mitsubishi Electric Corporation
11. Ozone Solutions Inc.
12. Ozonetek Limited
13. Pinnacle Ozone Solutions
LLC
14. Primozone Production AB
15. ProMinent GmbH
16. Toshiba Corporation