Process Control Services, Inc. is an ISO 9000 certified and ISO/IEC 17025 accredited third party maintenance organization. Founded in 1983, it is a supplier of surplus DCS (Distributed Control System) equipment. The company purchases and sells a variety of used surplus control systems and other process control equipment, including individual parts as well as entire systems. In addition, it offers field service, depot repair, training and parts for various DCS equipment brands such as Foxboro, Invensys, Fisher, Rosemount, Honeywell, Bailey, Westinghouse, Modicon, General Electric and others.