Act One Communications - Indoor, outdoor, mobile, and traffic signal LED message boards and displays.
IST International, Ltd. - Manufactures intelligent signaling systems.
Lights To Go - Traffic light controls and signal flashers for collectable and automobilia enthusiasts.
Lingo Industrial Electronics - Distributors of traffic signal and street lighting products and related accessories.
P. Berghaus GmbH - Manufacturers of traffic signal systems for roadworks, beacons, mobile warning trailers, warning lamps, protective equipment and guide elements.
Pelco Products, Inc. - Manufacturer of traffic signaling hardware.
Precision Solar Controls, Inc. - Manufactures traffic monitors, signal lamps, and solar powered changeable message signs.
Traffic Signals Controls, Inc. - Traffic control systems and related equipment and services.
Union Switch & Signal, Inc. - Manufactures signaling, automation, and control equipment and systems for the railroad and mass transit industries.
