Otis Elevator Company is one of the leading manufacturers, installers and maintainers of elevators, escalators and moving walkways in the world. The company has annual revenues of more than $12 billion and employs a staff of over 65,000 people. It serves clients in nearly 200 countries throughout the world. The company maintains manufacturing facilities in North America, South America, Europe and Asia. Otis Elevator Company sells approximately elevators and escalators annually. It offers elevator systems under the Gen2 and Skyway brands. The company has been in operation since 1853 and provides service solutions. Its portfolio includes Hong Kong and Shanghai Bank and the Hong Kong Convention & Exhibition Centre. includes Otis Elevator Company is a wholly owned subsidiary of United Technologies Corporation.