CLH vs CWST

Clean Harbors Inc.

Clean Harbors, Inc. provides environmental and industrial services in North America. The company operates through two segments, Environmental Services and Safety-Kleen. The Environmental Services segment collects, transports, treats, and disposes hazardous and non-hazardous waste, such as resource recovery, physical treatment, fuel blending, incineration, landfill disposal, wastewater treatment, lab chemicals disposal, and explosives management services; and CleanPack services, which comprise collection, identification, categorization, specialized packaging, transportation, and disposal of laboratory chemicals and household hazardous waste. This segment also provides industrial maintenance and specialty industrial services, and utilizes specialty equipment and resources that performs field services. The Safety-Kleen segment offers specially designed parts washers; automotive and industrial cleaning products, such as antifreeze, windshield washer fluid, degreasers, glass and floor cleaners, hand cleaners, absorbents, mats, and spill kits; pickup and transportation services for hazardous and non-hazardous containerized waste for recycling or disposal; and vacuum services to remove solids, residual oily water and sludge, and other fluids from customers oil/water separators, sumps, and collection tanks, as well as remove and collect waste fluids found at metal fabricators, auto maintenance providers, and general manufacturers. This segment also manufactures, formulates, packages, distributes, and markets lubricants; and provides containerized waste, vac services, used motor oil collection, and contract blending and packaging services. Clean Harbors, Inc. was founded in 1980 and is headquartered in Norwell, Massachusetts.

Casella Waste Systems Inc.

Casella Waste Systems, Inc., together with its subsidiaries, operates as a vertically integrated solid waste services company in the northeastern United States. It offers resource management services primarily in the areas of solid waste collection and disposal, transfer, recycling, and organics services to residential, commercial, municipal, and industrial customers. The company provides a range of non-hazardous solid waste services, including collections, transfer stations, and disposal facilities. It also markets recyclable metals, aluminum, plastics, and paper and corrugated cardboard that are processed at its facilities, as well as recyclables purchased from third parties. In addition, the company is involved in commodity brokerage operations. As of April 15, 2021, it owned and/or operated 46 solid waste collection operations, 58 transfer stations, 20 recycling facilities, 8 Subtitle D landfills, 4 landfill gas-to-energy facilities, and 1 landfill permitted to accept construction and demolition materials. The company was founded in 1975 and is headquartered in Rutland, Vermont.