• Cosella-Dörken Products, Inc.

• Cresset Chemical Company

• D E L Roofing Equipment & Supplies Ltd.

• Dayton Superior, Chemical Division

• Dec-K-Ing

• Disaster Plus

• 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

• IKK Group

• Iko Industries Ltd.

• Ink Smith Inc.

• JDR Enterprises

• Karnak Corporation