Clean Harbors, Inc. engages in the provision of environmental, energy, and industrial services. It operates through the following segments: Environmental Services and Safety-Kleen. The Environmental Services segment consists of the technical services, industrial services, field services and oil, gas & lodging businesses. The Safety-Kleen segment includes parts washer services, containerized waste services, vac services, used motor oil collection and sale of base & blended oil products as well as complementary products. The company was founded by Alan S. McKim in 1980 and is headquartered in Norwell, MA.