GreenStar Services Corporation is one of the country's leading heavy mechanical, plumbing, HVAC, electrical and specialty general contractors serving diversified market sectors throughout the United States. The organization specializes in infrastructure, environmental and complex construction assignments. GreenStar includes three operating subsidiaries: Five Star Electric Corporation, WDF Inc. and Nagelbush Mechanical. Each of the three firms is an industry leader in size, technology, talent and financial strength. A single-source MEP and specialty contracting provider, GreenStar serves its clients in a broad variety of markets including transportation, infrastructure, commercial, school and university, residential and specialty construction. The Freedom Tower, the New York Mets Stadium, Citi Field, Time Warner, Goldman Sachs, Miami's Regency Hotel, New York Hospital as well as major transportation and environmental projects such as South Ferry Terminal and Whitehall Ferry, Owls Head and Jamaica Bay Water Treatment Facilities are just a few of GreenStar's signature assignments.