HNL is a minority-owned small business based in Santa Clara, California, specializing in Waveguide Systems and Components. Established in 1981, HNL started as a consulting company with expertise in Microwave Technology and has since expanded its services to include design, manufacturing, and testing of all Waveguide Components and Subsystems. They offer a wide selection of ancillary waveguide components for transmitting, measuring, and altering microwave energy, with a focus on high-power applications. All products are manufactured locally in Santa Clara, and HNL differentiates itself by using intricate shapes, uncommon materials, and non-standard waveguide sizes.