• Acoustic Sciences Corporation

• Allegany Technology

• Atlas Sound

• Auratone Corp.

• Autotatch

• Belden Wire & Cable Co.

• Bosch Security Systems, Inc.

• Burrows Lumber Inc.

• Caffall Bros. Forest Products, Inc.

• Cambridge Sound Management

• Christie Digital Systems

• Daniel Woodhead Co.

• David Clark Co.

• Draper, Inc

• Earmark

• Food Automation - Service Techniques, Inc. (FAST)

• Industrial Acoustics Co.

• Lucent Technologies

• Mad Systems

• Makita USA

• Marathon Special Products

• Mohawk/CDT

• Nicholas Evanoff Company

• Opamp Labs

• Planar Systems, Inc.

• Prellwitz/Chilinski Associates, Inc.

• RGB Spectrum

• RSI Co.

• Rane Corporation

• Sage Technology Solutions, Inc.

• Solidyne Corp.

• Sonance Div.

• Spectronics Corp.

• Telephonics Corp.

• Teqniqal Systems, LLC

• The Wiremold Company

• Thomas & Betts

• Thomas & Betts Electrical

• Tristate & Electric & Electronics Supply Co.

• Ultratech Industries

• Zenitel USA

• Zomeworks Corp.