Generac Holdings Inc. (Generac) is a designer and manufacturer of power generation equipment and other engine powered products. The Company serves the residential, light commercial, industrial, oil and gas, and construction markets. Its segments include Domestic and International. The Domestic segment includes the Generac business. The International segment includes the Ottomotores UK, Tower Light SRL and PR Industrial S.r.l acquisitions. It designs and manufactures light towers, which provide temporary lighting for various end markets; commercial and industrial mobile heaters used in the oil and gas, construction and other industrial markets, and a product line of outdoor power equipment for residential and commercial use. It designs, manufactures, sources and modifies engines, alternators, transfer switches and other components necessary for its products. It classifies products into three categories: Residential products, Commercial & Industrial products, and Other products.