- Accepta
- Air Products and Chemicals
Inc
- Apollo Chemical Co. LLC
- Aqua Clear Inc.
- Ashland
- Baker Hughes
a GE company LLC
- BASF SE
- Buckman
- Clariant
- Dow
- Eastman Chemical Company
- ELEMENTIS PLC
- Elkem Silicones
- Evonik Industries AG
- GEO Specialty Chemicals Inc.
- Kalo
- Kemira
- Lubrizol Corp.
- Momentive
- MUNZING Corporation
- NALCO India
- SAN NOPCO LIMITED
- Om Tex Chem Private Limited
- Hydrite Chemical
- PMC Group Inc.
- Shin-Etsu Chemical Co. Ltd
- Merck KGaA
- Siltech Corporation
- SUEZ