Research · Sep 3, 2026
[CLH] Clean Harbors Thesis 2026: Hazardous Waste Cycle Drives Safety-Kleen Recycling Margin Recovery
Clean Harbors Inc. (NYSE: CLH) FY2025 revenue ~$5.95-6.20B (+5-9%) with adj. EPS ~$8.45-9.10 reflecting continued post-2024 ~$3.95-4.10B aggregate Environmental Services (~67% revenue mix; selected primary North America hazardous waste + emergency response + selected various) + selected continued post-2024 ~$1.95-2.05B aggregate Safety-Kleen Sustainability Solutions (~33% revenue mix) + selected continued post-2024 ~$50-60M aggregate annual incremental EBITDA contribution from selected post-2023 selected various Hencorp + selected various tuck-in acquisitions under continued President + Co-CEO Eric Gerstenberg + Co-CEO Mike Battles since March 2023 (~2-year tenure as Co-CEO). The largest US provider of hazardous waste management + emergency response + automotive aftermarket recycling services. Founded 1980 as Clean Harbors of Braintree by Alan S. McKim in Braintree Massachusetts (~45-year heritage); selected post-1987 NASDAQ listing IPO; selected post-2002 NYSE listing transition; selected post-December 2012 ~$1.25B aggregate Safety-Kleen Systems acquisition; selected post-March 2023 Eric Gerstenberg + Mike Battles Co-CEO appointment + Alan McKim Executive Chairman transition; selected post-2023 selected various Hencorp + selected various tuck-in acquisitions. Headquartered in Norwell Massachusetts; ~22,000+ employees globally with ~$5.95-6.20B revenue. Two primary business segments: Environmental Services (~67% ~$3.95-4.10B), Safety-Kleen Sustainability Solutions (~33% ~$1.95-2.05B). Geographic mix: United States ~85% + Canada ~10% + Mexico + selected various Puerto Rico + Caribbean ~5%. Hazardous waste + Environmental Services cycle: selected primary 9 active US hazardous waste incinerators (~70% aggregate active US RCRA-permitted incineration capacity post-2014); selected continued post-2024 ~92-94% incinerator utilization; selected various PFAS + selected various landfill + selected various emergency response services. Safety-Kleen + automotive aftermarket recycling: ~210M+ aggregate gallons annual used motor oil (UMO) collection FY2025; ~140M+ aggregate gallons aggregate FY2025 lubricant base oil production; selected continued post-2024 selected various parts cleaning + automotive aftermarket. President + Co-CEO Eric Gerstenberg + President + Co-CEO Mike Battles since March 2023 (~2-year tenure); CFO Eric Dugas. Capital return: ~$0M annual dividend FY2025 (selected primary capital deployment for tuck-in M&A); ~$50-100M aggregate FY2024-2025 buyback program; aggregate capital return ~$30-50M; net leverage ratio ~1.7-2.0x; investment-grade Ba1/BB+ credit rating. FY2026 thesis: Hazardous waste + Environmental Services cycle + Safety-Kleen Sustainability Solutions + ~$50-60M aggregate annual incremental EBITDA contribution from tuck-in M&A + selected continued post-2014 deleveraging + selected potential post-deleveraging dividend initiation. Risks: hazardous waste cyclical, Republic Services + Waste Management + Stericycle competitive, US EPA regulatory, used motor oil + lubricant base oil pricing volatility, tuck-in M&A integration execution.