Clean Harbors (CLH) Earnings Date & Reports

Key Takeaways

• Clean Harbors posted record third-quarter revenue of $1.87 billion, up 21% year over year, driven by strength in both operating segments.
• Net income rose 75% to $208.1 million, with diluted earnings per share (EPS) of $3.93, well above the roughly $3.25 analysts had expected.
• Adjusted EBITDA (earnings before interest, taxes, depreciation, and amortization) climbed 42% to $456.1 million, lifting the margin 370 basis points to a record 24.4%.
• Management raised full-year 2026 guidance, now targeting Adjusted EBITDA of $1.44 billion to $1.48 billion and adjusted free cash flow of $600 million to $660 million.
• A large emergency response event, growing PFAS-related work, and a tight global base-oil market were the primary drivers of the outperformance.
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Earnings Context and Why It Matters

Clean Harbors, North America's leading environmental and industrial services provider, entered the third quarter of 2026 with considerable momentum, having already raised its full-year outlook twice during the year. Investors were watching closely to see whether demand across its Environmental Services (ES) and Safety-Kleen Sustainability Solutions (SKSS) segments could sustain the strength seen earlier in 2026. The report also carried added significance because management had flagged several growth catalysts, including reshoring, PFAS remediation, and tight refined-product supply. Against that backdrop, the third-quarter results mattered not only as a measure of near-term execution but also as a signal of whether Clean Harbors could convert favorable industry conditions into durable margin expansion and free cash flow.

Reported Results

Clean Harbors delivered revenue of $1.87 billion, a 21% increase from $1.55 billion a year earlier and ahead of consensus estimates near $1.73 billion. Net income surged 75% to $208.1 million, or $3.93 per diluted share, up from $2.21 in the prior-year period. Adjusted EBITDA rose 42% to $456.1 million, and the Adjusted EBITDA margin expanded 370 basis points to a company-record 24.4%.

The Environmental Services segment generated revenue of $1.55 billion, up 17%, with Adjusted EBITDA rising 19% to $425.4 million. Field Services led the way, with revenue up more than 70% year over year, helped by a large emergency response event that contributed roughly $120 million in revenue. Technical Services grew 3% with incineration utilization of 87%, while Safety-Kleen Environmental Services revenue increased 11%. The SKSS segment stood out, with revenue up 46% and Adjusted EBITDA more than tripling to $126.5 million on higher base-oil and lubricant pricing amid global supply constraints.

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Market Reaction and Investor Sentiment

The market responded positively to the results, with shares trading higher on the day of the release and near the upper end of their 52-week range. Investors focused on the magnitude of the beat, the record Adjusted EBITDA margin, and the decision to raise full-year guidance for both Adjusted EBITDA and adjusted free cash flow. The SKSS segment's outsized profitability, driven by elevated base-oil pricing, was a particular highlight, as was the 18th consecutive quarter of year-over-year margin expansion in Environmental Services. At the same time, some analysts noted that the emergency response windfall and commodity-driven SKSS strength may be difficult to repeat, tempering enthusiasm about the sustainability of the quarter's exceptional growth rate.

Forward Outlook and Key Factors to Monitor

Looking ahead, Clean Harbors guided to fourth-quarter Adjusted EBITDA growth of 23% to 26% year over year and raised its full-year 2026 Adjusted EBITDA midpoint to $1.46 billion, with adjusted free cash flow now expected between $600 million and $660 million. Management struck a cautiously optimistic tone, noting it expects to enter 2027 with momentum in both segments, though the fourth-quarter forecast does not assume additional large emergency response events.

Several factors will be important to watch. First, the durability of SKSS profitability depends on base-oil and lubricant pricing, which is tied to global refined-product supply and can be cyclical. Second, PFAS remediation and reshoring-related contract work represent longer-horizon demand drivers that could support more predictable growth in Environmental Services.

Finally, investors should monitor the company's integration of the five acquisitions completed in 2026, including ES&H and EnviroServe, as well as the announced executive transition that makes Eric Gerstenberg sole CEO on January 1. These items will shape both near-term execution and the strategic direction heading into 2027.

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