Founded in 1957, Tri-State Technical Sales Corporation is one of the leading distributors of industrial process control equipment, serving the mid-Atlantic region of the United States. Based in Malvern, Pa., the firm offers its products and services to the chemical, petroleum, pharmaceutical, power, biotechnology, pulp/paper and food industries. It offers a variety of valves, instruments, coatings, heat tracing, pressure relief, actuators and sanitary products. In addition, it provides services, such as tank vent auditing, logistics coordination, coating analyses and other value-added services.