ESCO Technologies Inc. produces and supplies engineered products and systems for utility, industrial, aerospace, and commercial users worldwide. The company operates in four segments: Filtration/Fluid Flow (Filtration), RF Shielding and Test (Test), Utility Solutions Group (USG), and Technical Packaging. The Filtration segment supplies filter elements, manifolds, assemblies, modules, indicators, custom and standard valves, filters, regulators, actuators, and other related components; elastomeric-based signature reduction solutions; and mission-critical bushings, pins, sleeves, and precision-tolerance machined components, as well as processing services. The Test segment designs and manufactures RF test and secure communication facilities, acoustic test enclosures, RF and magnetically shielded rooms, RF measurement systems, and broadcast and recording studios; and RF absorptive materials and filters, active compensation systems, antennas, antenna masts, turntables, electric and magnetic probes, RF test cells, proprietary measurement software, and other test accessories to perform various tests, as well as calibration for antennas and field probes, chamber certification, field surveys, customer training, and various product tests. The USG segment designs, manufactures, and delivers diagnostic testing solutions for electrical equipment comprising the electric power grid and enterprise management systems. The Technical Packaging segment offers thermoformed products and packaging materials for medical, pharmaceutical, retail, food, and electronic applications. The company distributes its products through a network of distributors, sales representatives, direct sales teams, and in-house sales personnel. ESCO Technologies Inc. was founded in 1990 and is headquartered in St. Louis, Missouri.