Welsbach Electric of Long Island is a wholly owned subsidiary of EMCOR Group. EMCOR is among the world's leading providers of mechanical and electrical construction and facilities services, including planning, consulting, and operations and maintenance. Welsbach Electric provides electrical construction services in Nassau and Suffolk counties in New York. With strategic footholds in the transportation and industrial markets, the company has been able to capitalize on existing and emerging technologies to become one of the major electrical contractors on Long Island. It operates a fleet of more than 100 specialized vehicles that are available 24 hours a day. Welsbach is and ISO 9001-2000-certified business. The company maintains a location in Plainview, N.Y.