• AFCO-USA (American Floor Products Co.)

• Alan Pre Fab Building Corp.

• Alcorn Fence Co.

• Allsafe Ladder and Scaffolding Co., Inc.

• Amano Cincinnati

• Amano Cincinnati Canada Inc.

• American Parking Equipment

• American Saw & Mfg. Company

• Ameristar Fence Products

• Amtel Parking Security Control

• Anchor Fence Company, Inc.

• Antech Corp.

• Atlas Flasher & Supply Co.

• Auto Gate Tech

• B&B ARMR Corporation

• B&B Roadway Security Solutions

• B.I.G. Enterprises, Inc.

• Big D Metalworks of Texas

• Bike Security Racks Co.

• Brocar Products

• Builders Fence Co.

• Burle-Philips Communication & Security Systems Inc.

• Burrell Overhead Door Ltd.

• C P C Equipment Company

• CPE/APE

• Canada Kiosk Corporation

• Canterbury International

• Code Blue Corp.

• Columbia Equipment Company, Inc.

• Concrete, Inc.

• DEC Parking Associates LLC

• Davidson Traffic Control Products

• Delta Scientific Corp.

• DoorKing, Inc.

• EMX Industries

• Eagle Gate Securities, Inc.

• Edwards Door Systems Ltd.

• Elcom Industries

• Elite Access Systems

• Engineered Parking Systems

• FAAC International

• Federal APD

• Federal Signal Corporation

• G. Reale Enterprises, Inc.

• GYYR

• Garlock Safety Systems

• Gillespie Corporation

• Graphics 22 Signs, Inc.

• HID Corp.

• Hallmark Cabinet

• Hastie Fence

• Hayes, Seay, Mattern & Mattern, Inc.

• Howard Industries, Inc.

• HySecurity Gate Operators, Inc.

• IDEAL Mfg., Inc.

• Intersection Development Corp.

• Jay Bee Painting

• Larco Inc.

• Linear Corp.

• MASTER-HALCO, Inc.

• MPS Corp.

• MS SEDCO

• Manaras Inc.

• Mohawk Lifts Div.

• Omega Industrial Products

• Ontario Parking Systems Ltd.

• Operator Specialty Company, Inc.

• PPI Parking & Access Computer

• PRADA Company, Inc.

• PTC Industries

• Par-Kut International

• Pelco

• Philips CSI Inc.

• Philips Communication, Security & Imaging, Inc.

• Plastic Safety Systems

• Plastiglas Industries Ltd.

• Porta-Fab Corporation

• Quick Crete Products Corp.

• R.F. Knox Company

• Redibase

• SOS Siren Operated Sensor

• Security Fabricators

• Seton

• Steel Deck Institute

• TRI-COR International

• Talk-A-Phone Co.

• Taylor-Dunn

• Trigon Electronics

• Vermont Granite Works LLC

• Vestil Mfg. Co.

• W P S North America Div of WPS Int'l Parking Systems

• Webco Lighting

• World Doorways

• Z-Wall