$CLH

Clean Harbors, Inc. (CLH) Closes $775M EnviroServe and ES&H Acquisitions

Clean Harbors, Inc. (CLH) completed the acquisitions of EnviroServe and ES&H for $775M, funded with cash and $600M in senior notes. The deals are expected to add $340M in revenue and $87M in post-synergy Adjusted EBITDA, with an 8.9x multiple.

Original reporting
Published Oct 5, 2026, 12:30 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Oct 5, 2026, 12:38 PM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
Clean Harbors, Inc. (CLH) Closes $775M EnviroServe and ES&H Acquisitions — source image
Decision brief

The 30-second read

$CLHBullishMed
01

Why it matters

The acquisition expands its service portfolio and geographic footprint, positioning the company for higher recurring revenue.

02

Market read

The deal adds significant revenue and EBITDA, likely supporting CLH's share price in the near term.

03

What to watch

Potential debt covenant constraints from the $600M senior notes issuance.

Relevance 9/10Novelty 9/10Timing: after‑hours today

Background

Clean Harbors is a leading provider of environmental, energy and industrial services in North America.

Company-level read

Ticker impact

$CLHBullishHigh confidence
Context

Clean Harbors completed the $775M EnviroServe and ES&H acquisitions, adding about $340M revenue and $87M post‑synergy Adjusted EBITDA.

Expected impact

likely upward pressure as the market prices in revenue and EBITDA accretion

Evidence & confidence

Deal size and disclosed synergies represent material earnings growth; investors typically reward such expansion moves.

Market effects

Strengthens the environmental services sector by consolidating market share under Clean Harbors.

U.S. waste‑management and environmental services markets may see modest uplift.

Limited to the niche environmental services industry; no broad macro impact.

Counterpoint

If integration costs exceed expectations, the accretion could be delayed, weighing on the stock.

Key entities

  • Clean Harbors, Inc.

    U.S. environmental services firm completing the acquisitions.

  • EnviroServe

    Target of the acquisition.

  • ES&H

    Target of the acquisition.

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$CLHHighAI 8/10

One Rock completes sale of EnviroServe to Clean Harbors for $470m

One Rock Capital Partners sold EnviroServe Inc. to Clean Harbors, Inc. (CLH) for $470 million. EnviroServe offers environmental and waste management services. CLH's Co-CEO Mike Battles noted EnviroServe's growth and capabilities. One Rock expanded EnviroServe during its ownership. The transaction was previously announced and has now been completed.

$CLHMed

CLH Looks 22.8% Overvalued on GF Value™

William Blair initiated coverage on Clean Harbors Inc (CLH) with an Outperform rating and a $379-$444 price target, citing reshoring and data center growth trends. GF Value™ estimates CLH is 22.8% overvalued at $315.70, with a GF Score™ of 87/100. Insiders sold $63.4M in shares over 12 months, while 7 gurus hold positions, with mixed activity. CLH's P/E ratio is 38.31x, above its 5-year median of 28.75x.