ESCO Technologies, Inc. is a producer of engineered products and systems, which engages in the provision of utility, industrial, aerospace, and commercial applications. It operates through the Filtration/Fluid Flow, RF Shielding and Test, Utility Solutions Group (USG), and Technical Packaging segments. The Filtration/Fluid Flow segment involves in the design and manufacture specialty filtration products including hydraulic filter elements and fluid control device, through PTI Technologies Inc., VACCO Industries, Crissair, Inc., and Thermoform Engineered Quality LLC. The RF Shielding and Test segment offers customers to identify, measure, and contain magnetic, electromagnetic and acoustic energy, through ETS-Lindgren Inc. The Utility Solutions Group segment consists of Doble Engineering Company and related subsidiaries (Doble), Morgan Schaffer Ltd. (Morgan Schaffer), and NRG Systems, Inc. (NRG). The Technical Packaging segment consists of Thermoform Engineered Quality LLC (TEQ) and Plastique. The company was founded in August 1990 and is headquartered in St. Louis, MO.