ESCO Technologies Inc sells products for utility, industrial, aerospace, and commercial applications. The firm operates in three segments: filtration, test, and the utility solutions group. The filtration segment contributes the largest proportion of revenue and supplies filtration and fluid control products to the commercial and military aerospace, defense, automotive, medical, and electronics industries. The test segment manufactures products to measure energy and supplies components like filters, antennas, and electric and magnetic probes. The utility solutions group manufactures diagnostic testing solutions for electrical equipment and enterprise management solutions for electrical power systems. Esco generates the majority of its revenue in the United States.