Hamilton Sundstrand is one of the largest suppliers of aerospace and industrial products throughout the world. The company designs and manufactures aerospace systems for the commercial, regional, corporate and military aircraft industries. It also administers several international space programs. Hamilton Sundstrand has a staff of more than 4,100 employees. Its facility is spread over an area of more than 2 million square feet. The company has operations in Windsor Locks in Connecticut. Hamilton Sundstrand specializes in value engineering and supply chain management services. It is a subsidiary of United Technologies Corporation, which offers a range of helicopter and elevator design and climate control services.