Esterline Technologies Corporation was a publicly traded company that designs, manufactures, and markets specialty products primarily for aerospace and defense customers. The company is best known as a supplier of products and equipment for aerospace companies such as Boeing and Airbus; and for American and allied military forces. Esterline is based in Bellevue, Washington. Curtis Reusser serves as company chairman, president, and CEO. On March 14, 2019, TransDigm successfully completed the acquisition of Esterline Technologies Corporation (formerly NYSE:ESL).