Raytheon Technologies Corporation is an American multinational aerospace and defense conglomerate headquartered in Waltham, Massachusetts. It is one of the largest aerospace, intelligence services providers, and defense manufacturers in the world by revenue and market capitalization. Raytheon Technologies (RTX) researches, develops, and manufactures advanced technology products in the aerospace and defense industry, including aircraft engines, avionics, aerostructures, cybersecurity, guided missiles, air defense systems, satellites, and drones. The company is also a large military contractor, getting a significant portion of its revenue from the U.S. government. The company is the result of the merger of equals between the aerospace subsidiaries of United Technologies Corporation (UTC) and the Raytheon Company, which was completed on April 3, 2020. Before the merger, UTC spun off its non-aerospace subsidiaries Otis Elevator Company and Carrier Corporation. UTC is the nominal survivor of the merger but it changed its name to Raytheon Technologies and relocated its headquarters to Waltham. Former UTC CEO and chairman Gregory J. Hayes is Chairman and CEO of the combined company. The company has four subsidiaries: Collins Aerospace, Pratt & Whitney, Raytheon Intelligence & Space and Raytheon Missiles & Defense. On June 7, 2022, the company announced plans to move its global headquarters to Arlington, Virginia.