ESCO Technologies Inc., a St. Louis-based company, provides engineered products and systems for industrial and commercial markets globally. Divided into three segments - Aerospace & Defense, Utility Solutions Group, and RF Shielding and Test - the company's Aerospace & Defense arm designs and manufactures hydraulic filter elements and fluid control devices for commercial aerospace applications, among other products. In contrast, the Utility Solutions Group provides diagnostic testing solutions that enable electric power grid operators to evaluate the integrity of high-voltage power delivery equipment. Finally, the RF Shielding and Test arm designs and manufactures RF test and secure communication facilities, broadcast and recording studios, and RF measurement systems, among other products. The firm distributes its products through a combination of direct sales teams, sales representatives, and in-house sales personnel, as well as distributors. Incorporated in 1990, ESCO Technologies is a leading player in its industry.