Diamond Antenna and Microwave Corporation

Founded in 1956, Diamond Antenna and Microwave Corporation is a defense subsystem manufacturer based in Littleton, United States working in radar & sensors, communications & satcom, space +2 more.

Diamond Antenna and Microwave Corporation designs, manufactures and repairs RF rotary joints and integrated rotating subsystems. Its products transmit radio frequency signals across a rotational interface via waveguide or coaxial lines, and can be combined with slip rings, fiber optic channels, encoders, power, fluid or air passages. Applications include military and commercial SATCOM and radar for ground, shipboard and airborne systems, as well as Air Traffic Control and weather radar, space platforms and medical equipment. The company also overhauls and refurbishes rotary joints regardless of original manufacturer, and operates as an FAA and NOAA depot repair center. Founded in 1956, it is based in Littleton, Massachusetts, where it has been since 2004. The company holds ISO 9001:2015 and AS9100:2016 certification and reports over 2000 standard active rotary joint designs. It became an Employee Stock Ownership Plan company in 2010 and is classified as a U.S. small business. In November 2024, Artemis Capital Partners, a Boston private equity firm, announced its acquisition of the company.