Operational since 1956, Testing Service Corporation, also known as TSC, is a firm that provides a variety of services in the geotechnical engineering, construction materials testing and environmental fields. The firm offers laboratory testing services for soil, concrete and bituminous pavement. It provides Field monitoring services for construction and environmental projects. Testing Service Corporation also provides installation services of wells, piezometers, lysimeters, gas probes and inclinometers. The firm offers services for the private sector residential developments, shopping centers, distribution and rail and cargo off-loading facilities, office buildings and sports complexes, as well as public infrastructure projects that include airports, expressways, bridges and tunnels. Its team members include engineers, geologists, technicians and drilling professionals. Testing Service Corporation has handled more than 71,000 projects and maintains its corporate headquarters in Carol Stream, Ill.