• RPS Corporation

• Republic Powdered Metals, Inc.

• Ridge Mfg.

• Rolatape Corp.

• Roof Curb Systems, LLC.

• Roof Products & Systems Corporation

• Roof Products, Inc.

• RoofScreen Mfg.

• RoofTop Accessories

• Rosen's Electrical Equipment Co.

• Royal Apex Mfg.

• Rubber Triangle Pipe Support Company

• S&K Associates

• SBC Industries

• SBC Industries, Inc.

• SFS Stadler

• SITURA, Inc.

• SMRT, Inc.

• Scandinavian Profiling Systems

• Siplast, Inc.

• Situra, Inc.

• Skywall Translucent Systems

• Snojax, Inc.

• Snow Management Systems

• Southeastern Metals Manufacturing Co., Inc.

• Spar Marathon Roofing Supplies