Unity has been an innovative manufacturer of automotive, truck and emergency vehicle lighting products since 1918. The company was founded on the south side of Chicago and evolved into single, private ownership under Henry Rue Gross in 1923. In the mid-1920s, Unity started production of its line of post-mount spotlights. The company expanded into the manufacture of automotive and heavy-duty truck road lights in the 1930s. Shortly after moving to its current 160,000 sq. ft. facility in 1960, Unity was able to expand into the manufacture of emergency lighting products for police, fire, and other emergency vehicles. Throughout the history of motorized vehicles, Unity has adapted to customer needs and made products that improve the safety of motorists, truckers, off-roaders, police, fire, ambulance, utility, military, farmers, wreckers, snow plows and services vehicles of all kinds during nighttime activities and emergencies. Today, Unity is the worlds largest manufacturer of post-mount spotlights. The company is also a major OE supplier of both auxiliary and emergency lighting products. Its product range includes post-mount spotlights, roof-mount spotlights, fog lights, driving lights, off-road lights, work lights, hand-held spotlights, deck lights, 360 degree warning lights and custom wire harnesses. As an aftermarket supplier, Unity maintains a highly trained customer service department, responsive field representatives, and a wide assortment of popular products for on-time shipments. As an O.E.M. supplier, Unity manufacturers its products in its own factories with in-house capabilities of chrome plating, buffing/polishing, machining, stamping, gear cutting, assembly, wire harness, CAD design, and prototyping. Its quality system has been certified as meeting the requirements of and its environmental management system as meeting ISO 14001:2015.