Ducommun Incorporated provides engineering and manufacturing products and services primarily to the aerospace, defense, industrial, natural resources, medical, and other industries in the United States. The company operates through two segments, Electronic Systems (ES) and Structural Systems (SS). The ES segment offers cable assemblies and interconnect systems; printed circuit board assemblies; higher-level electronic, electromechanical, and mechanical assemblies; radar enclosures; aircraft avionics racks; shipboard communications and control enclosures; wire harnesses; and other high-level complex assemblies. It also supplies engineered products, including illuminated pushbutton switches and panels for aviation and test systems; microwave and millimeter switches and filters for radio frequency systems and test instrumentation; and motors and resolvers for motion control. In addition, this segment provides engineering expertise for aerospace system design, development, integration, and test. The SS segment designs, engineers, and manufactures contoured aluminum, titanium, and Inconel aero structure components; structural assembly products, such as winglets, engine components, and fuselage structural panels; and metal and composite bonded structures and assemblies comprising aircraft wing spoilers, large fuselage skins, rotor blades on rotary-wing aircraft and components, flight control surfaces, and engine components. The company serves commercial and military fixed-wing and rotary-wing aircraft, and space programs, as well as non-aerospace applications for the industrial automation, medical, and other end-use markets. Ducommun Incorporated was founded in 1849 and is headquartered in Carson, California.