- Accepta
- Nouryon
- Albemarle Corp.
- Arch Chemicals Inc.
- Ashland Water Technologies
- Solenis
- Buckman Laboratories
- BWA Water Additives
- Chemtreat Inc.
- Chemtura Corp
- Dow
- Ecolab
- General Chemical Performance Products LLC
- Suez
- Kemira
- Kurita Water Industries Ltd.
- Evoqua Water Technologies LLC
- Solvay