Cooper Research Technology Limited (also known as Cooper Technology) is a British manufacturer of high-performance testing equipment for asphaltic and unbound materials based in Ripley, Derbyshire, England. The company specialises in the design and manufacture of laboratory testing equipment used for the investigation of the mechanical properties of materials used in road construction. While at the University of Nottingham in the 1980s, founder Keith Cooper designed a method of measuring and assessing the mechanical properties of asphaltic materials with the equipment known as the Nottingham Asphalt Tester (NAT), later superseded by the UTM-NU (Servo-Pneumatic Universal Testing Machine).