• DoorKing, Inc.

• Anchor Audio, Inc.

• Atlas Sound

• Auratone Corp.

• BGW Systems

• Bosch Security Systems, Inc.

• Broan-NuTone Canada

• Broan-NuTone, LLC.

• Buckeye Pacific Corporation

• Burrows Lumber Inc.

• CORNELL Communications

• CSI/Speco

• Caffall Bros. Forest Products, Inc.

• Creative Systems Group

• Dukane Corp.

• Dynasound, Inc.

• Edcor Electronics

• Fanon Courier

• Fourjay Industries

• Globetron Electronics Corporation

• Grommes-Precision Electronics

• IMC Power

• J R Stephenson (Manufacturing) Ltd.

• JBL Professional

• Johnson Controls, Inc.

• KDM Electronics Inc.

• Klockner Moeller Ltd.

• Lectrosonics

• Lencore Acoustics Corp.

• Lowell Manufacturing Company

• OWI

• Quam-Nichols Co.

• Rane Corporation

• S J Electro Systems Inc.

• Sage Technology Solutions, Inc.

• Scamp Sound Masking Systems

• Simplex/Grinnell

• Soundsphere Division of Sonic Systems, Inc.

• Starlite

• TOA Electronics

• Troy Sound Wall Systems

• Tuckahoe Metal & Roofing, Inc.

• Vandal-Proof Products

• Wheelock, Inc.