- Aquatech
- DuPont
- Evoqua Water Technologies LLC
- Ecolab
- SUEZ
- IDE Technologies
- Kurita Water Industries Ltd
- Organo Corporation
- Beijing Enterprises Water (China) Investment Co. Ltd
- Beijing Capital Co. Ltd
- Veolia
- SafBon
- Chongqing Water Group Co. Ltd
- Anhui Guozhen Environment Protection Technology
- Beijing Urban Drainage Group Co. Ltd
- Chengdu Xingrong Environment Co. Ltd