Tetra Tech is a global provider of consulting and engineering services.
Clean Harbors is a company providing environmental, energy, industrial, and hazardous waste disposal services.
Mobile Mini provides portable storage and specialty containment solutions.
Covanta (formerly the Ogden Corporation) is a global corporation that provides a variety of waste-management and incineration services.
Fluor is a multinational engineering and construction firm.
Casella Waste Systems is a waste management company providing resource management expertise and services to residential, commercial, municipal and industrial customers.
Republic Services is a provider of non-hazardous solid waste collection, transfer, disposal, recycling, and energy services.
American Water Works Company is a water and wastewater utility company.
Taronis Technologies (formerly MagneGas Corporation) is a technology company that has a patented process that converts liquid waste into hydrogen based fuels.
Renewi is a waste-to-product company.
Waste Management is a company providing waste management environmental services.
Connecticut Water Service is a regulated water company.