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Logo: Clean Harbors, CC BY 3.0, via Wikimedia Commons4
American environmental company
Clean Harbors, Inc., headquartered in Norwell, Massachusetts, is a provider of waste management and industrial services for commercial customers, specializing in the collection, transportation, treatment and disposal of hazardous waste, but also offering services for non-hazardous waste. The company has 870 operating locations in 630 properties in the U.S. and Canada including a network of over 100 waste disposal facilities such as incinerators, landfills (seven hazardous waste landfills and two non-hazardous waste landfills), treatment, storage and disposal facilities.3 From Wikipedia, CC BY-SA 4.0
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Last updated Oct 16, 2026.
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Clean Harbors, Inc., headquartered in Norwell, Massachusetts, is a provider of waste management and industrial services for commercial customers, specializing in the collection, transportation, treatment and disposal of hazardous waste, but also offering services for non-hazardous waste. The company has 870 operating locations in 630 properties in the U.S. and Canada including a network of over 100 waste disposal facilities such as incinerators, landfills (seven hazardous waste landfills and two non-hazardous waste landfills), treatment, storage and disposal facilities. It also owns Safety-Kleen, the largest re-refiner and recycler of used oil in North America. In 2024, the company received 91% of its revenues in the United States and 9% of its revenues in Canada. In 2024, the company's revenues primarily came from the following industries: chemical industry (15%), manufacturing (14%), refineries (13%), automotive industry (8%), utilities (6%), base and blended oils (5%), oil and gas industry (5%), transportation (4%), government (4%) and retail (3%).3
From the company’s reports to the SEC. Every number links to the filing it came from.
Revenue by product, business segment and region, as the company reports it to the SEC.
Technical Services brought in 31% of the revenue Clean Harbors broke down this way in fiscal 2025.
| Products and services | 2023 | 2024 | 2025 |
|---|---|---|---|
| Technical Services | $1.6B | $1.7B | $1.9B |
| Industrial Services And Other | $1.4B | $1.4B | $1.3B |
| Safetly-Kleen Environmental Services | $1.1B | $1.2B | $1.3B |
| Field and Emergency Response | $609.9M | $895.1M | $937.4M |
| Safety-Kleen Oil | $714.0M | $699.5M | $593.9M |
Reportable Segments brought in 50% of the revenue Clean Harbors broke down this way in fiscal 2025.
| Business segments | 2023 | 2024 | 2025 |
|---|---|---|---|
| Reportable Segments | $5.4B | $5.9B | $6.0B |
| Environmental Services | $4.5B | $5.0B | $5.1B |
| Safety-Kleen Sustainability Solutions | $897.3M | $884.8M | $837.4M |
United States brought in 91% of the revenue Clean Harbors broke down this way in fiscal 2025.
| Regions | 2023 | 2024 | 2025 |
|---|---|---|---|
| United States | $4.9B | $5.4B | $5.5B |
| Canada | $540.0M | $537.5M | $540.0M |
Out of $6.0B in revenue.7
Out of $866.7M of cash from operations.7
Every line of the income statement in the latest annual report, as filed.7
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Total revenues | $6.0B | $5.9B | $5.4B |
| Total cost of revenues | $4.1B | $4.1B | $3.7B |
| Selling, general and administrative expenses | $752.5M | $739.6M | $671.2M |
| Accretion of environmental liabilities | $14.3M | $13.5M | $13.7M |
| Depreciation and amortization | $446.0M | $400.9M | $365.8M |
| Income from operations | $673.4M | $670.2M | $612.4M |
| Other income (expense), net | $5.2M | -$1.5M | $2.3M |
| Loss on early extinguishment of debt | -$8.3M | -$371.0K | -$2.9M |
| Gain on sale of businesses | $776.0K | $0 | $0 |
| Interest expense, net of interest income of $25,749, $19,437 and $11,930, respectively | -$143.1M | -$135.0M | -$108.6M |
| Income before provision for income taxes | $528.0M | $533.4M | $503.3M |
| Provision for income taxes | $137.0M | $131.1M | $125.4M |
| Net income | $391.0M | $402.3M | $377.9M |
| Basic (in dollars per share) | $7.31 | $7.46 | $6.99 |
| Diluted (in dollars per share) | $7.28 | $7.42 | $6.95 |
| Shares used to compute earnings per share Basic (in shares) | 53.5M shares | 53.9M shares | 54.1M shares |
| Shares used to compute earnings per share Diluted (in shares) | 53.7M shares | 54.2M shares | 54.4M shares |
| Interest income | $25.7M | $19.4M | $11.9M |
Every line of the balance sheet in the latest annual report, as filed.7
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $826.3M | $687.2M | $444.7M |
| Short-term marketable securities | $127.4M | $102.6M | |
| Accounts receivable, net of allowances aggregating $35,991 and $47,242, respectively | $1.0B | $1.0B | |
| Unbilled accounts receivable | $160.9M | $162.2M | |
| Inventories and supplies | $372.1M | $384.7M | |
| Prepaid expenses and other current assets | $116.5M | $81.7M | |
| Total current assets | $2.6B | $2.4B | |
| Property, plant and equipment, net | $2.5B | $2.4B | |
| Operating lease right-of-use assets | $255.1M | $250.9M | |
| Goodwill | $1.5B | $1.5B | $1.3B |
| Permits and other intangibles, net | $653.0M | $702.0M | |
| Other long-term assets | $48.6M | $65.5M | |
| Total other assets | $2.4B | $2.5B | |
| Total assets | $7.6B | $7.4B | |
| Current portion of long-term debt | $12.6M | $15.1M | |
| Accounts payable | $506.6M | $487.3M | |
| Deferred revenue | $81.5M | $88.5M | |
| Accrued expenses and other current liabilities | $441.8M | $419.4M | |
| Current portion of closure, post-closure and remedial liabilities | $19.1M | $20.6M | |
| Current portion of operating lease liabilities | $75.2M | $71.7M | |
| Total current liabilities | $1.1B | $1.1B | |
| Closure and post-closure liabilities, less current portion of $10,290 and $10,304, respectively | $125.0M | $119.5M | |
| Remedial liabilities, less current portion of $8,822 and $10,321, respectively | $86.5M | $101.4M | |
| Long-term debt, less current portion | $2.8B | $2.8B | |
| Operating lease liabilities, less current portion | $184.3M | $182.9M | |
| Deferred tax liabilities | $384.2M | $363.6M | |
| Other long-term liabilities | $197.9M | $162.6M | |
| Total other liabilities | $3.7B | $3.7B | |
| Authorized 80,000,000 shares; issued and outstanding 52,870,599 and 53,832,692 shares, respectively | $529.0K | $538.0K | |
| Additional paid-in capital | $193.9M | $421.7M | |
| Accumulated other comprehensive loss | -$204.6M | -$213.6M | |
| Retained earnings | $2.8B | $2.4B | |
| Total stockholders' equity | $2.7B | $2.6B | $2.2B |
| Total liabilities and stockholders' equity | $7.6B | $7.4B | |
| Account receivable, allowances aggregating | $36.0M | $47.2M | |
| Closure and post-closure liabilities, current portion | $10.3M | $10.3M | |
| Remedial liabilities, current portion | $8.8M | $10.3M | |
| Common stock, par value (in dollars per share) | $0.01 | $0.01 | $0.01 |
| Common stock, authorized shares (in shares) | 80.0M shares | 80.0M shares | |
| Common stock, issued shares (in shares) | 52.9M shares | 53.8M shares | |
| Common stock, outstanding shares (in shares) | 52.9M shares | 53.8M shares |
Cash flow is reported year to date, not quarter by quarter, so there are no separate quarterly figures.
Every line of the cash flow in the latest annual report, as filed.7
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Net income | $391.0M | $402.3M | $377.9M |
| Depreciation and amortization | $446.0M | $400.9M | $365.8M |
| Allowance for doubtful accounts | $8.1M | $8.1M | $6.0M |
| Amortization of deferred financing costs and debt discount | $6.3M | $6.3M | $5.3M |
| Accretion of environmental liabilities | $14.3M | $13.5M | $13.7M |
| Changes in environmental liability estimates | -$10.1M | $4.1M | $4.8M |
| Deferred income taxes | $25.8M | $18.4M | $12.7M |
| Other (income) expense, net | -$5.2M | $1.5M | -$2.3M |
| Stock-based compensation | $32.7M | $28.0M | $20.7M |
| Loss on early extinguishment of debt | $8.3M | $371.0K | $2.9M |
| Gain on sale of businesses | -$776.0K | $0 | $0 |
| Environmental expenditures | -$16.1M | -$27.5M | -$29.0M |
| Accounts receivable and unbilled accounts receivable | -$31.8M | -$28.8M | $2.5M |
| Inventories and supplies | $12.5M | -$49.6M | -$4.3M |
| Other current and non-current assets | -$42.4M | -$57.2M | -$22.6M |
| Accounts payable | $23.4M | $12.3M | -$27.4M |
| Other current and long-term liabilities | $4.8M | $45.1M | $8.1M |
| Net cash from operating activities | $866.7M | $777.8M | $734.6M |
| Additions to property, plant and equipment | -$424.9M | -$432.2M | -$422.3M |
| Proceeds from sale and disposal of fixed assets | $21.6M | $9.1M | $9.7M |
| Acquisitions, net of cash acquired | $0 | -$478.0M | -$119.6M |
| Proceeds from sale of businesses, net of transaction costs | $4.3M | $750.0K | $750.0K |
| Additions to intangible assets including costs to obtain or renew permits | -$3.6M | -$9.6M | -$2.6M |
| Purchases of available-for-sale securities | -$116.7M | -$117.9M | -$158.3M |
| Proceeds from sale of available-for-sale securities | $93.6M | $124.2M | $117.4M |
| Net cash used in investing activities | -$425.8M | -$903.7M | -$575.0M |
| Change in uncashed checks | $3.6M | -$1.5M | $2.8M |
| Tax payments related to withholdings on vested restricted stock | -$15.8M | -$13.8M | -$13.8M |
| Repurchases of common stock | -$250.0M | -$55.2M | -$51.2M |
| Deferred financing costs paid | -$16.2M | -$9.0M | -$6.7M |
| Payments on finance leases | -$33.1M | -$30.9M | -$15.9M |
| Proceeds from employee stock purchase plan | $7.2M | $3.0M | $0 |
| Principal payments on debt | -$2.0B | -$15.1M | -$624.0M |
| Proceeds from issuance of debt, net of discount | $2.0B | $499.4M | $500.0M |
| Borrowing from revolving credit facility | $0 | $0 | $114.0M |
| Payment on revolving credit facility | $0 | $0 | -$114.0M |
| Net cash (used in) from financing activities | -$309.3M | $377.0M | -$208.9M |
| Effect of exchange rate change on cash | $7.5M | -$8.6M | $1.5M |
| Increase (decrease) in cash and cash equivalents | $139.1M | $242.5M | -$47.9M |
| Interest paid | $157.3M | $153.1M | $114.6M |
| Income taxes paid, net of refunds | $117.9M | $130.6M | $132.3M |
| Property, plant and equipment accrued | $33.3M | $43.8M | $52.4M |
Founded by Alan McKim in 1980.1
Clean Harbors was founded in 1980 in Brockton, Massachusetts, by Alan McKim as a four-person tank cleaning business.
In November 1987, the company became a public company via an initial public offering.
In 1984, the company removed 130,000 gallons of fuel oil from the tanker Eldia, which became the largest ship to have been beached off Cape Cod.
From Wikipedia’s article on Clean Harbors, shared under CC BY-SA 4.0.6
Who has led Clean Harbors, and when. Pick a name to see everywhere that person has worked.
Every filing from the last three years, summarized. The full record is on SEC EDGAR.2
The numbers on this page point here. Each one links to the record it came from.
