The 12 closest competitors and alternatives to Clean Harbors, Inc. among environmental services companies — ranked by similarity to what Clean Harbors, Inc. actually does, not by market-cap band.
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Clean Harbors, Inc. delivers a comprehensive range of environmental and industrial services across North America. The company is structured into two primary divisions: Environmental Services and Safety-Kleen Sustainability Solutions. The Environmental Services segment manages the entire lifecycle of waste, from collection and transportation to treatment and final disposal of both hazardous and non-hazardous materials. This involves employing various techniques including resource reclamation, physical processing, fuel blending, incineration, secure landfilling, wastewater purification, and the proper handling of laboratory chemicals and explosive materials. Its specialized CleanPack services meticulously manage the collection, identification, categorization, bespoke packaging, transportation, and ultimate disposal of sensitive laboratory chemicals and household hazardous waste. This division further extends to industrial maintenance and specialized on-site industrial operations, leveraging advanced equipment and personnel for fieldwork. The Safety-Kleen Sustainability Solutions segment furnishes specially engineered parts washers and offers a diverse array of automotive and industrial cleaning agents, including antifreeze, windshield washer fluid, degreasers, surface and floor cleaners, hand sanitizers, absorbents, protective mats, and spill containment kits. This division handles the collection and transport of both hazardous and non-hazardous containerized waste, facilitating either recycling or appropriate disposal. It provides vacuum extraction services to eliminate solid debris, residual oily water, sludge, and other liquids from client oil/water separators, sumps, and collection tanks. It also collects waste fluids generated by metal fabrication facilities, automotive service centers, and various general manufacturing operations. Furthermore, this segment is involved in the manufacturing, formulation, packaging, distribution, and marketing of lubricants, additionally offering containerized waste management, vacuum services, the collection of used motor oil, and custom blending and packaging solutions. Established in 1980, the company maintains its headquarters in Norwell, Massachusetts.
Clean Harbors, Inc. is an environmental services company headquartered in Norwell, United States. It is publicly listed (CLH) with a market capitalisation of $17.2B. Xcout tracks 22 named people at Clean Harbors, Inc., including Eric W. Gerstenberg (Co-CEO, Co-President & Director). Xcout recorded 2 job postings from Clean Harbors, Inc. in the last 90 days.
16 more named people on record for Clean Harbors, Inc., with roles, board committees and tenure — see the full roster →
Xcout recorded 2 job postings from Clean Harbors, Inc. in the last 90 days, from a hiring record Xcout has kept since June 2026.
The weekly hiring trend, the roles and locations behind it — see Clean Harbors, Inc.'s hiring signals →
Ranked by semantic similarity — how close each company is to Clean Harbors, Inc. by what it does, using Xcout's live company graph. Click any company for its full profile, or its competitor set.
Similar environmental services company
Clean Earth is an environmental services company headquartered in King of Prussia, Pennsylvania, offering comprehensive solutions for safely managing hazardous and non-hazardous waste.
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Founded in 1853 and headquartered in Philadelphia, Pennsylvania, Enviri Corporation provides environmental solutions for industrial and specialized waste streams both domestically and abroad. The company, formerly known as Harsco Corporation until its renaming in June 2023, operates through three primary divisions. The Harsco Environmental segment delivers on-site environmental management services for client waste and byproduct streams. This encompasses resource recovery and recycling, materials handling, logistical assistance, and the management of aluminum dross and scrap. Additionally, this division transforms industrial waste into valuable ecological products, including materials for road surfacing, metallurgical additives, agricultural and turf applications, and cement enhancements. The Clean Earth segment specializes in comprehensive processing solutions for various specialty wastes. Its services include the treatment, recycling, and beneficial repurposing of both hazardous and non-hazardous materials, along with the processing of contaminated soil and dredged materials for customers across the industrial, retail, healthcare, and construction sectors. Lastly, the Harsco Rail segment focuses on railway track maintenance, offering both equipment and services to railway operators, mass transit systems, and equipment leasing companies. Its offerings span engineered railway vehicles for rail treatment, tie work, and utility functions, new track construction machinery, aftermarket parts and support, and advanced safety and diagnostics technology. This segment also provides meltshop and furnace services, such as under-vessel cleaning and the removal of ladle slag and general melt shop debris.
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Perma-Fix Environmental Services, Inc., operating through its various subsidiaries, functions as a U.S.-based company offering specialized expertise in environmental solutions and technology. Its operations are divided into three core divisions: Treatment, Services, and Medical. The Treatment division specializes in the handling, processing, and safe disposal of various waste types, including nuclear, low-level radioactive, mixed, hazardous, and non-hazardous materials, utilizing its dedicated treatment and storage facilities. Furthermore, this segment conducts research and development to devise and apply innovative methods for managing challenging waste streams. The Services division delivers extensive technical support, encompassing professional radiological assessments and site surveys for both government and commercial clients, alongside integrated occupational safety and health programs. Its offerings also include consulting, engineering, project and waste management, environmental remediation, and on-site decontamination and decommissioning (D&D) services, as well as providing specialized technical and managerial personnel. For the nuclear sector, it provides technology-driven solutions covering engineering, D&D, construction, logistics, transportation, processing, and disposal, in addition to undertaking the cleanup of licensed nuclear facilities and legacy sites. This segment further maintains an advanced laboratory for calibrating, maintaining, and sourcing a wide array of health physics, industrial hygiene, and custom nuclear, environmental, and occupational safety and health monitoring equipment. The Medical segment concentrates its efforts on the research and development of technologies for producing medical isotopes. Perma-Fix serves a diverse clientele, ranging from research institutions and commercial enterprises to public utilities and government bodies, engaging with them either directly or via third-party channels. Established in 1990, Perma-Fix Environmental Services, Inc. maintains its headquarters in Atlanta, Georgia.
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Safetykleen is a corporate service provider with operational hubs and office locations across Europe, including notable corporate and commercial activity in London, United Kingdom. The company provides specialized industrial cleaning, waste management, and chemical service solutions.
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Triumvirate Environmental is one of the largest environmental services firms in North America, providing comprehensive environmental and waste management solutions.
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Synagro Technologies, Inc. provides environmental services focused on the management, treatment, transportation, and beneficial reuse of biosolids and other organic residuals. It serves municipalities, wastewater utilities, and industrial customers across North America.
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Séché Environnement is an environmental services group that provides waste management, circular economy, and ecological transition solutions for industrial clients and local authorities. Its services include hazardous and household waste treatment, soil and site remediation, industrial water treatment, pollution response, and low-carbon energy supply.
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Charah Solutions is a leading provider of mission-critical environmental services and byproduct sales to the power generation industry. Headquartered in Louisville, Kentucky, the company also maintains regional offices in locations such as Charlotte, North Carolina.
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Strategic Environmental & Energy Resources, Inc. (SENR) is a company specializing in environmental technologies and waste management solutions, operating both domestically and internationally. Its operations are structured into two distinct segments: Environmental Solutions and Solid Waste. SENR provides proprietary dry scrubber systems, such as H2SPlus and OdorFilter, which efficiently eliminate hydrogen sulfide from biogas, landfill gas, and petroleum processing streams. Furthermore, the company develops advanced technologies specifically engineered to purify and upgrade biogas into usable renewable natural gas. SENR also pioneers innovative waste destruction methods, employing a pyrolytic heating process coupled with non-thermal plasma-assisted oxidation. Beyond technology development, the company actively undertakes renewable natural gas project development. Its product portfolio extends to chemical absorbents and catalysts designed to optimize biogas production from landfills, wastewater treatment facilities, and agricultural digesters. Additionally, SENR supplies soil amendment pellets. SENR caters to a diverse client base, including entities within the oil and gas refining, landfill management, medical waste disposal, agriculture, and food and beverage sectors, alongside a broad range of other commercial and industrial enterprises. The corporate headquarters are located in Broomfield, Colorado.
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Haviland Enviro Corp. (Haviland Products Company) provides cleaning, surface finishing, water treatment, and commodity chemistries, alongside contract manufacturing and packaging services for industrial clients. Additionally, the company offers a complete line of pool and spa chemical products for consumers and service professionals across the United States.
Similar environmental services company
Concord Environmental Construction Services is a full-service environmental contractor and construction company serving New England and southeastern New York since 1977. The company offers a range of services including demolition, hazardous materials removal, soil and groundwater remediation, tank removal and installation, and construction management for commercial, industrial, and residential clients.
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Environmental Management Services, Inc. (doing business as EMS Environmental) operates a corporate office and physical address in Bethlehem, Pennsylvania. The company provides environmental management services.
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