• Advanced Chemical Technologies, Inc.

• American Permaquik, Inc.

• American Safety Technologies

• BBZ USA, Inc. Concrete Watertight Structures

• Bartell Industries Inc.

• Bonsal American

• Bonstone Materials Corporation

• C C Chemicals Canada

• C-Cure

• CETCO

• Centimark Corporation

• ChemMasters

• ConcreteScience International, Inc.

• Conproco Corporation

• Conspec

• Cresset Chemical Company

• Dayton Superior Corporation

• Dayton Superior, Chemical Division

• Deneef Construction Chemicals

• Dependable Chemical Co., Inc.

• E-Poxy Engineered Materials, LLC

• Edison Coatings, Inc.

• Euclid Chemical Company

• Five Star Products, Inc.

• Fosroc, Inc.

• Fox Industries, Inc.

• Fox Industries, Inc.

• Futura Companies LTD.

• Garland Canada Inc.

• Garon Products Inc.

• Gemite Products Inc.

• General Polymers Corp.

• Grace Construction Products

• Hacker Industries, Inc.

• IPA Systems, Inc.

• IPA Systems, Inc.

• L & M Construction Chemicals, Inc.

• Larsen Products Corporation

• Macklanburg-Duncan

• Mapei Inc.

• Metalcrete Industries

• Nox-Crete Products Group

• Polytite Mfg. Corp., Dur-O-Wal

• Quikrete Companies

• Republic Powdered Metals, Inc.

• Rutland Fire Clay Co.

• SGM, Inc.

• Sealoflex, Inc.

• Select Products Co.

• Sinak Corporation

• Specco Industries, Incorporated

• Specialty Resin Systems (SRS)

• Sternson Construction Products

• Stonhard, Inc.

• Stuc-O-Flex International, Inc.

• Surface Technology Inc.

• Surface Technology, Inc.

• Tamms Industries

• The Garland Company UK Ltd.

• The Garland Company, Inc.

• Thermal-Chem Corporation

• Transpo Industries, Inc.

• Vandex USA

• Vexcon Chemicals, Inc.

• W R Grace Company of Canada Ltd.

• Watson-Bowman Acme Corp.