Founded in 1977, Electro Systems Support (ESS) is a manufacturer of various electrical equipment. Located in Temecula, Calif., the company specializes in build-to-print contract work, using designs and specifications created in-house or supplied. Electro Systems Support (ESS) has a vast range of clients, including Boeing, Lockheed, Sargent Fletcher Inc. and Smiths Aerospace. The company serves a number of industries that include general aviation, helicopters, experimental aircraft, commuter vehicles and maritime hatch covers and antennas, among others. It provides a broad range of services, such as design, build, install functions and blend.