• SDC Security Door Controls

• Schlage Lock Co.

• Securitech Group, Inc.

• Securitron Magnalock Corp.

• Select Products Limited

• Sentinel Diversified Industries

• Sentrylok

• Southern G F Co.

• Stanley Access Technologies

• Stanley Hardware

• Stanley Hardware

• Stegweit & Company

• Trine Products

• Tristate Wholesale Building Supplies, Inc.

• U-Change Lock Industries

• Van Lock Co.

• Vickroy Fire Tech

• Von Duprin Division

• Wikk Industries, Inc.

• Xercon

• YSG Door Security Consultants