Akzonobel N.V.
Baker Hughes Incorporated
BASF SE
Clariant AG
Croda International Plc
DOW Chemical Company
Ecolab Inc.
Halliburton
Momentive Performance Materials, Inc.
Schlumberger Limited
Weatherford International Ltd
Rimpro India
Huntsman Corporation
Dorf Ketal
Direct N-PaKT Inc.
Nova Star LP
Innospec Inc.
REDA Oilfield
Roemex Limited
Cochran Chemical Company
SI Group
MCC Chemicals Inc.
Impact Chemical Technologies Inc.
Oil Technics Holdings Ltd.
Chemiphase Ltd.
Aurorachem
Egyptian Mud Engineering and Chemicals Company