Founded in 1965, Semco Instruments specializes in manufacturing sensors, electronic controls and electrical cables for the gas-turbine industry. The company designs, develops, tests and produces speed sensors; thermocouples; temperature-system measurement sensors, assemblies and accessories; wiring harnesses and assemblies for cable, electronic and electromechanical applications; electronic and electromechanical assemblies; mineral-insulated cable; and coaxial electric heaters. The company operates manufacturing facilities in Valencia, Calif., and Meriden, Conn. The combined size of its production plants totals 76,000 square feet. The company supplies products to the commercial, military and spacecraft markets and is a supplier and partner to many turbine-engine manufacturers throughout North America. Semco Instruments is headquartered in Valencia, Calif.