United Technologies Corporation
Headquartered in Hartford, Connecticut. Provides a broad range of high-technology products and support services to the building systems and aerospace industries. As a global corporation, it has more than 1,900 locations in 183 countries. Products include Pratt & Whitney aircraft engines, Carrier heating and air conditioning systems, Otis elevators and escalators, shuttle systems, Sikorsky helicopters, Hamilton Standard aerospace systems and IFC/ONSI fuel cells.