United Technologies Corporation. The Group's principal activity is to provide high technology products and services to the building systems and aerospace industries worldwide. The Group operates through six segments. Otis designs, manufactures, sells and installs a wide range of passenger and freight elevators, broad line of escalators and moving ... More

United Technologies Corporation. The Group's principal activity is to provide high technology products and services to the building systems and aerospace industries worldwide. The Group operates through six segments. Otis designs, manufactures, sells and installs a wide range of passenger and freight elevators, broad line of escalators and moving walkways. Carrier manufactures and distributes heating, ventilating, air conditioning systems, refrigeration and food service equipment. UTC Fire and Security provides security and fire safety products. Pratt & Whitney provides spare parts and aftermarket and fleet management services. Hamilton Sundstrand supplies technologically advanced aerospace and industrial products and aftermarket services. Sikorsky manufactures military and commercial Helicopters.