• 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

• Fields Company LLC

• Foam Enterprises Inc.

• Fosroc, Inc.

• Fox Industries, Inc.

• Gardner-Gibson, Inc.

• Gemite Products Inc.

• Gorilla Proof

• Grace Construction Products

• Hal Industries Inc.

• Husky Oil Marketing Company

• Iko Industries Ltd.

• Ink Smith Inc.

• JDR Enterprises

• Karnak Corporation

• Koch Waterproofing Solutions, Inc.

• Koppers Industries, Inc.

• L & M Construction Chemicals, Inc.

• LBI Technologies, Inc.

• Lambert Corporation of Florida, Inc.

• Macklanburg-Duncan

• Mapei Inc.

• Mar-flex Waterproofing & Building Products

• Metacrylics

• Metalcrete Industries

• Michigan Industrial Paint Supply, Inc.

• Monsey Bakor Inc.

• OKON, Inc.

• Paintcraft, LLC

• Permaquik Corporation

• Polymaster, Inc.

• Quikrete Companies

• Rainguard International Products Company

• Rutland Fire Clay Co.

• Seal-Krete, Inc.

• SealGuard USA

• Sealoflex, Inc.

• Select Products Co.

• Southeastern Metals Manufacturing Co., Inc.

• Spar-Marathon Roofing Supplies

• StoneTech Professional

• Supra Floors Inc.

• SureSeal USA

• Tamko Roofing Products

• Tamms Industries

• United Coatings / Quest Construction Products

• Vandex USA

• Victaulic Company of America

• W R Grace Company of Canada Ltd.

• Waterproof.com LLC

• Weather Barrier, Inc.

• York Manufacturing, Inc.