Founded in 1849, Ducommun Incorporated is the oldest company in California. Evolving from a store opened by Charles Ducommun in Los Angeles during the California Gold Rush, the company assisted in the birth of the aerospace industry in Southern California by providing aircraft aluminum to companies such as Lockheed.

Today, Ducommun Technologies (DTI) is a major supplier of microwave switches and components used in the aerospace and wireless communications industries. Standard and custom high-reliability coaxial SPDT, Transfer and Multi-position switches for military and aerospace applications. Coaxial switches from DC to 50 GHz for commercial, defense, industrial, and aerospace applications with popular items often available from stock.

We also manufacture custom-designed products for your unique needs as well as RF Microwave filters, diplexers and triplexers, high power/high reliability,Switch Matrices and integrated assemblies that can be tested to MIL standards.