- 3M
- Akzo Nobel N.V.
- Albemarle Corporation
- BASF SE
- Clariant
- Croda International Plc
- Eastman Chemical Company
- Henkel AG & Co. KGaA
- Huntsman International LLC
- National Chemical Laboratory (NCL)
- Procter & Gamble
- Reckitt Benckiser Group PLC
- Solvay
- Spartan Chemical Company Inc.
- Stepan Company
- WM Barr.
- Westlake Chemical Corporation