Hamilton Sundstrand is a subsidiary of United Technologies Corporation, a worldwide technology company with a long history of pioneering advancements in aerospace, aviation, helicopter design, climate control, elevator design and hydrogen fuel cells. Hamilton Sundstrand is a worldwide supplier of technologically advanced aerospace and industrial products. As well as being a major supplier for international space programs, the company designs and manufactures aerospace systems for commercial, regional, corporate and military aircraft. Its advanced designs help make aircrafts safer and more comfortable to fly in, as well as improving reliability and reducing running and maintenance costs. Its systems can be found in more than 90 percent of the world's aircraft. The company s industrial products serve a variety of industries ranging from hydrocarbon, chemical and food processing to construction and mining. Hamilton Sundstrand maintains a location in Phoenix.