Founded in 1920, T.D. Williamson is a privately owned company that provides integrity solutions for onshore and offshore applications. It offers hot tapping and plugging, pipeline cleaning and pigging services for pressurized pipeline systems. The company supplies electric motors for gas booster stations, drilling oil wells, electric generator stations and various oil field applications. T.D. Williamson has manufacturing facilities throughout the United States, Belgium, England, India and Singapore. It serves the power generation, oil and gas, commercial construction, nuclear and district heating markets. The company provides various kinds of pipelines, including stainless steel, iron, hydraulic, aluminum and metal. T.D. Williamson is an ISO 9001:2000-certified company. It has a staff of support personnel, including engineers, project managers and technicians. The company has various distributors throughout the U.S., Canada, Latin America, Russia, Africa, Europe and India. It provides equipment, including valves, fittings, washers, tracking systems, plugs, launchers and receivers. T.D. Williamson maintains a location in Houston.