ESCO Technologies Inc. operates through three primary business segments: Aerospace & Defense, Utility Solutions Group, and RF Test & Measurement. The Aerospace & Defense segment manufactures specialty filtration products, advanced composites, and signature management solutions for commercial aviation, space, and naval applications. The Utility Solutions Group provides diagnostic testing instruments, software, and services that help electric power grid operators assess the integrity of high-voltage equipment. The RF Test & Measurement segment designs and manufactures products and systems to identify, measure, and contain magnetic, electromagnetic, and acoustic energy. Originally spun off from Emerson Electric Co. in 1990, ESCO has evolved from a pure defense contractor into a diversified industrial manufacturer. The company maintains a global footprint with manufacturing facilities and offices across North America, Europe, and Asia.