About Us: 40-years of sustainability in action. At Clean Harbors, our mission is to create a safer, cleaner workplace through the treatment, recycling, and disposal of hazardous materials. Clean Harbors is the leading provider of environmental, energy and industrial services throughout the United States, Canada, Mexico, and Puerto Rico. Everywhere industry meets workplace, Clean Harbors is in office, providing premier environmental, energy and industrial services. We are solving tough problems through innovation and proven methodology - come be part of the solution with us.