• APOC/ Div. of Gardner-Gibson, Inc.

• ATOFINA Chemicals, Inc.

• ATOFINA Technical Polymer Department

• Advanced Coatings Inc.

• Allied-Trent Roofing Systems Inc.

• American Permaquik, Inc.

• BASF Construction Chemicals - Building Systems

• BituNil

• Bonsal American

• Chem-Coat Industries, Inc.

• ChemMasters

• Chemprobe Coating Systems, L.P.

• Colbond Geosynthetics

• Coleman-Mitchell Heating & Air Conditioning, Inc.

• Concrete Sealants, Inc.

• Conklin Company Inc., Building Products Division

• Cosella-Dörken Products, Inc.

• Cresset Chemical Company

• D E L Roofing Equipment & Supplies Ltd.

• Dayton Superior, Chemical Division

• Dec-K-Ing

• Dow Corning Inc.

• Drexel Metals Corp.

• DuPont Tyvek Weatherization Systems

• Eljen Corporation

• Euclid Chemical Company