Clean Harbors

Clean Harbors, Inc. is a publicly traded environmental and industrial services company headquartered in Norwell, Massachusetts. Its core business is the collection, transportation, treatment, recycling, and disposal of hazardous waste, supplemented by non-hazardous waste services, environmental remediation, emergency response, and industrial maintenance. The company serves commercial, industrial, and government customers across the United States and Canada, with operations that also extend to Puerto Rico. The business began in 1980 in Brockton, Massachusetts, when founder Alan S. McKim established a four-person tank-cleaning operation. That initial focus on industrial cleaning developed into a broader environmental-services platform. A notable early project came in 1984, when the company removed approximately 130,000 gallons of fuel oil from the tanker Eldia. The operation became notable because the Eldia was the largest ship to have been beached off Cape Cod at the time. Clean Harbors became a public company through an initial public offering in November 1987. Over time, it expanded its service infrastructure and geographic coverage, building a network of operating locations and waste-management assets. The company operates facilities that include incinerators, hazardous- and non-hazardous-waste landfills, and treatment, storage, and disposal sites. The reference material describes a network of more than 100 waste-disposal facilities within approximately 870 operating locations on about 630 properties in the United States and Canada. A major component of the company’s portfolio is Safety-Kleen, which Clean Harbors owns. Safety-Kleen is described as North America’s largest re-refiner and recycler of used oil, giving the group a circular-economy business alongside its conventional waste-treatment and disposal activities. Clean Harbors therefore combines compliance-oriented waste services with resource recovery, industrial cleaning, spill and emergency response, and maintenance services. The company’s customer base spans multiple heavy and regulated industries. In 2024, the United States accounted for 91 percent of revenue and Canada for 9 percent. The principal customer sectors identified in the reference material included chemicals, manufacturing, refineries, automotive, utilities, base and blended oils, oil and gas, transportation, government, and retail. This sector diversity reduces reliance on a single end market while exposing the company to industrial production, environmental regulation, infrastructure activity, and demand for specialized waste treatment. Clean Harbors is listed on the New York Stock Exchange under the symbol CLH and has been included in the Fortune 500 ranking. Its positioning is that of an integrated environmental-services provider with difficult-to-replicate treatment infrastructure, specialized logistics, emergency-response capabilities, and a broad industrial customer base. The available material does not establish a separate consumer-facing product brand strategy; the company primarily sells business-to-business services and operates through service lines and facilities rather than packaged consumer products.

Clean Harbors traces its origins to 1980, when Alan S. McKim founded the company in Brockton, Massachusetts, as a four-person tank-cleaning business. The original operation was relatively focused, but tank cleaning placed the company in an industrial environment where customers also required waste handling, contamination control, transportation, and environmental compliance services. These adjacent needs provided the basis for the company’s later development into a broader environmental-services provider. One early project associated with the company took place in 1984. Clean Harbors removed roughly 130,000 gallons of fuel oil from the tanker Eldia. The vessel had been beached off Cape Cod and was described in the reference material as the largest ship to have been beached there. The project demonstrated the company’s ability to undertake specialized marine and fuel-removal work in addition to routine industrial cleaning. Clean Harbors entered the public markets in November 1987 through an initial public offering. Public-company status provided a platform for expansion, although the available reference material does not specify the offering size, underwriting details, or contemporaneous financial performance. The company subsequently developed a substantial network of treatment and disposal assets in the United States and Canada. Its infrastructure includes incinerators, landfills, and treatment, storage, and disposal facilities, allowing it to manage waste through multiple stages rather than relying solely on third-party disposal. The company’s operating model combines physical assets with field services. It collects and transports regulated waste, treats or disposes of it through specialized facilities, and provides industrial maintenance, cleanup, and emergency-response services. This combination allows Clean Harbors to serve customers during ordinary operations as well as during spills, shutdowns, contamination events, and other incidents requiring rapid mobilization. Clean Harbors also owns Safety-Kleen, a business identified in the reference material as North America’s largest re-refiner and recycler of used oil. Safety-Kleen broadens the group’s activities from waste disposal into recovery and re-refining. Used-oil recycling is strategically distinct from hazardous-waste treatment because it can return recovered material to industrial use, while also supporting customers’ environmental and regulatory objectives. By 2024, the company’s network was described as comprising approximately 870 operating locations across about 630 properties in the United States and Canada, including more than 100 waste-disposal facilities. Its revenue base remained concentrated in the United States, which represented 91 percent of revenue, while Canada represented 9 percent. Customers came from chemicals, manufacturing, refining, automotive, utilities, base and blended oils, oil and gas, transportation, government, and retail. The company was also ranked 586th on the Fortune 500. The available sources do not provide a complete account of later acquisitions, leadership changes, individual facility openings, regulatory proceedings, or financial results. Accordingly, those matters are not added as factual milestones here. The documented history supports viewing Clean Harbors as a specialized business-to-business environmental-services platform whose development has been driven by regulated waste infrastructure, industrial field services, emergency response, and used-oil recovery.

• 2024

  North American operating footprint

  [1]Clean Harborsen.wikipedia.org

  Reference material described approximately 870 operating locations across about 630 properties in the United States and Canada, including more than 100 waste-disposal facilities.

• 1987

  Initial public offering

  [1]Clean Harborsen.wikipedia.org

  The company became publicly traded through an initial public offering in November 1987.

• 1984

  Eldia fuel-oil removal

  [1]Clean Harborsen.wikipedia.org

  Clean Harbors removed approximately 130,000 gallons of fuel oil from the tanker Eldia, a project associated with the largest ship then beached off Cape Cod.

• 1980

  Company founded

  [1]Clean Harborsen.wikipedia.org

  Alan S. McKim founded Clean Harbors in Brockton, Massachusetts, beginning with a four-person tank-cleaning operation.

An integrated North American environmental and industrial-services provider focused on regulated waste streams, specialized treatment infrastructure, emergency response, industrial maintenance, and resource recovery.

• Environmental services

  Hazardous-waste management

  Clean Harbors’ central service line covers the collection, transportation, treatment, and disposal of hazardous waste generated by industrial, commercial, and government customers. Its infrastructure includes incinerators, hazardous-waste landfills, and treatment, storage, and disposal facilities. The service is designed for regulated waste streams that require specialized logistics, processing, documentation, and final disposition.

• Waste management

  Non-hazardous-waste management

  In addition to hazardous materials, Clean Harbors provides services for non-hazardous waste. These activities use the company’s collection, transportation, treatment, disposal, and industrial-service capabilities to manage waste streams that do not fall under hazardous-waste classifications. The available material does not identify a separate product name or detailed service specifications.

• Remediation and response

  Environmental cleanup and emergency response

  The company provides environmental cleanup and emergency-response services for spills, contamination events, and other incidents requiring specialized personnel and equipment. These services complement routine waste management by allowing Clean Harbors to mobilize in response to industrial or environmental emergencies. The supplied sources do not provide a detailed catalog of response programs or geographic service guarantees.

• Industrial services · 1980

  Industrial maintenance and cleaning

  Industrial services extend the company’s original tank-cleaning activities into broader maintenance and cleaning work for industrial customers. Such services are positioned alongside waste handling and environmental support, allowing customers to coordinate cleaning, waste removal, and compliance-related activities through one provider. Specific techniques and contract offerings are not detailed in the supplied references.

• Resource recovery

  Safety-Kleen used-oil re-refining and recycling

  Safety-Kleen, owned by Clean Harbors, operates in used-oil re-refining and recycling. The business gives the group a resource-recovery activity in addition to disposal and treatment services, processing used oil for re-refining and recycling. The reference material identifies Safety-Kleen as North America’s largest re-refiner and recycler of used oil.

• 1987

  Public-market listingOther

  Background

  After operating as a privately founded industrial cleaning business, Clean Harbors pursued access to public equity markets.

  Action taken

  The company completed an initial public offering in November 1987.

  Aftermath

  The transaction established Clean Harbors as a public company; the supplied references do not provide the offering size or immediate financial effects.

  Source

1. 1Clean Harborsen.wikipedia.org
2. 2Clean Harbors official websitecleanharbors.com
3. 3Clean Harbors Acquires its Headquarters Facility in Norwood - Boston Real Estate Timesbostonrealestatetimes.com