United Technologies Corporation (UTC) is an American multinational conglomerate headquartered in Farmington, Connecticut. It researches, develops, and manufactures products in numerous areas, including aircraft engines, aerospace systems, HVAC, elevators and escalators, fire and security, building systems, and industrial products, among others. UTC is also a large military contractor, getting about 10% of its revenue from the U.S. government. Gregory J. Hayes is the CEO and chairman. On June 9, 2019, UTC announced the intent to merge its aerospace business with Raytheon.