Clean Harbors, Inc.
Clean Harbors, Inc. (NYSE: CLH) is a leading North American provider of environmental and industrial services operating through two primary segments: Environmental Services and Safety-Kleen Sustainability Solutions. The company maintains its principal executive offices in Norwell, Massachusetts and operates its… From the company’s description.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What Clean Harbors, Inc. does
In the company’s own words
Clean Harbors, Inc. (NYSE: CLH) is a leading North American provider of environmental and industrial services operating through two primary segments: Environmental Services and Safety-Kleen Sustainability Solutions. The company maintains its principal executive offices in Norwell, Massachusetts and operates its website at www.cleanharbors.com.
The Environmental Services segment offers comprehensive waste management solutions including collection, transportation, treatment, recycling and disposal of hazardous and non-hazardous waste through a network of over 100 facilities. These facilities include ten commercial hazardous waste incinerators, seven landfills (six permitted for hazardous waste), treatment storage and disposal facilities, wastewater treatment centers, and solvent recycling operations. The segment also provides emergency response services, industrial maintenance, specialty industrial services, and field remediation projects. Clean Harbors operates the largest number of commercial hazardous waste incinerators and landfills in North America and manages a fleet exceeding 20,000 vehicles. The company has developed Total PFAS Solutions, a comprehensive service offering addressing per- and poly-fluorinated alkyl substances through testing, water filtration, site remediation and disposal capabilities.
The Safety-Kleen Sustainability Solutions segment operates as the largest re-refiner and recycler of used oil in North America, collecting 243 million gallons of used oil annually. The segment operates seven re-refineries that process collected used oil into base oils, vacuum gas oil, and high-quality lubricants marketed under the Performance Plus brand. The segment also provides parts cleaning services, the largest such offering in North America, along with collection services for used oil filters and automotive fluids.
Clean Harbors serves a diversified customer base spanning multiple industries including general manufacturing, chemical, refineries, automotive, utilities, transportation, government and retail sectors. The company generated approximately $6.0 billion in total revenues, with approximately 91 percent derived from United States operations and 9 percent from Canada. The company has executed over 80 acquisitions throughout its 45-year operating history and maintains a strong commitment to safety, achieving industry-leading safety metrics with a Total Recordable Incident Rate of 0.49 in 2025.
Company details
- Sector
- Industrials
- Industry (SIC)
- Electric, Gas & Water
- Headquarters
- NORWELL, MA
- Fiscal year end
- December
- CIK
- 822818
- SIC
- 4955
Financial performance, year by year
Fiscal 2013–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns Clean Harbors, Inc. — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Largest fund holders · Clean Harbors, Inc.’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Clean Harbors, Inc.’s bonds, as funds hold them
Funds report holding 3 issues of Clean Harbors, Inc.’s debt, $644.22M at market value — what funds hold, not the company’s total debt. Weighted-average coupon 5.85%, maturing 2029 to 2033.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
Put this business in context.
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