United Technologies Corporation (UTC) is an American multinational conglomerate, with headquarters in Hartford, Connecticut, United States.
Founded as United Aircraft in 1934, the name was changed to United Technologies Corporation in 1975 to reflect the intent of diversifying into other high tech technologies other than aerospace. It researches, develops and manufactures high-technology products in diverse areas, including aviation, fuel cells, elevator etc. It employs more than 218300 employees. Its various business Units include Carrier, UTC Aerospace System, Otis Elevator Company, Pratt & Whitney Sikorsky Aircraft, UTC Fire and Security etc.