Clean Harbors' disposal and recycling network drives Q2
Clean Harbors (NYSE: CLH) reported record Q2 results driven by demand for its disposal and recycling network and remediation, including PFAS-related work. Q2 revenue rose 12% to $1.74B. Environmental Services revenue grew to $1.46B and adjusted EBITDA to $406.1M. The company raised FY guidance and agreed to buy ES&H for $305M.
How this was made

The 30-second read
Why it matters
The article combines a Q2 earnings print with margin expansion, a new large 10-year disposal contract valued at $600M, and a pending $305M acquisition, alongside raised full-year adjusted EBITDA and adjusted free cash flow guidance. Together, these reduce uncertainty on 2026 cash generation and expand contracted disposal demand visibility.
Market read
Traders can update CLH valuation and positioning based on the raised guidance, record segment margins, and new contracted disposal demand plus acquisition-driven growth expectations.
What to watch
The acquisition (ES&H) is pending regulatory approval and closing in 2H 2026; integration and timing could affect realized synergies versus the $5M cost-synergy estimate.
Background
Clean Harbors operates disposal and recycling infrastructure (Environmental Services) and re-refining/used oil services (Safety-Kleen Sustainability Solutions), with growing PFAS-related remediation and filtration work.
Ticker impact
Clean Harbors reported Q2 revenue of $1.74B (+12% YoY) and raised full-year adjusted EBITDA and free cash flow guidance.
Likely positive bias for CLH shares into the next earnings cycle, with upside sensitivity to PFAS and disposal utilization trends.
The article includes specific Q2 results, segment EBITDA/margin expansion, and explicit upward revisions to full-year adjusted EBITDA and adjusted free cash flow, which are direct decision inputs for traders.
Market effects
Reinforces demand strength for hazardous waste disposal, PFAS remediation, and disposal capacity scarcity, supporting sentiment for environmental services peers.
Limited direct regional read-through; operations and contracts are US-focused (including Gulf Coast and reshoring-linked manufacturing).
Used oil segment notes global refined-product supply disruptions, but the guidance impact is primarily US-driven.
Counterpoint
Used oil collections volumes fell (61M gallons vs 64M), so margin strength may be more supply-chain and pricing driven than purely volume-led demand.
Key entities
- public_companyClean Harbors
Reported record Q2 results, raised full-year guidance, disclosed a $600M 10-year disposal contract, and agreed to acquire ES&H for $305M.
- acquired_companyES&H
Gulf Coast environmental and emergency response provider; deal value $305M cash, with ~$90M base revenue and ~$30M adjusted EBITDA cited.
- themePFAS
Company cites accelerating PFAS-related project work, including DoD lifting an incineration moratorium, supporting growth.
