 Ducommun

Ducommun Incorporated () is a manufacturing company that supplies products, engineering and support services to the global aerospace and defense industry.Founded in 1849, Ducommun is recognized as the oldest business in California and today manufactures structural and electronic components and sub-assemblies for a wide range of commercial, military and space platforms including the Boeing 737 NG and 777 airliners, the C-17 heavy lift cargo jet, the Apache, Chinook and Black Hawk helicopters, the Space Shuttle, International Space Station and Mars Rover.