Clean Harbors completes acquisitions of EnviroServe and ES&H

Clean Harbors (CLH) completed acquisitions of EnviroServe and ES&H for $775M. The deals, funded via cash and debt, add $340M in annual revenue and $87M in Adjusted EBITDA, with a post-synergy multiple of 8.9X. EnviroServe expands waste handling, while ES&H strengthens emergency response in the Gulf region, according to the company.

Original reporting
Published Oct 12, 2026, 2:21 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Oct 12, 2026, 3:27 AM 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 completes acquisitions of EnviroServe and ES&H — source image
Decision brief

The 30-second read

$CLHBullishMed
01

Why it matters

The $775 million deal adds significant revenue and EBITDA, likely improving earnings outlook and supporting a higher valuation.

02

Market read

The acquisition is material for CLH and may influence peer valuations in the environmental services space.

03

What to watch

Potential regulatory scrutiny of the Gulf emergency‑response assets and the impact of higher debt on credit metrics.

Relevance 8/10Novelty 8/10Timing: today

Background

Clean Harbors (NYSE: CLH) is a leading provider of environmental and industrial services in North America.

Company-level read

Ticker impact

$CLHBullishHigh confidence
Context

Clean Harbors announced completion of its $775 million acquisitions of EnviroServe and ES&H, adding $340 million revenue and $87 million adjusted EBITDA.

Expected impact

potential modest upside as investors price in synergies and expanded service footprint

Evidence & confidence

Deal size is material for a mid‑cap, first‑report disclosure; integration benefits are clear and financing is via cash and existing senior notes.

Market effects

Strengthens the environmental services sector by consolidating waste‑handling capabilities.

Boosts service capacity in the U.S. Gulf region, a key petrochemical hub.

Limited to North American industrial services; no direct global macro effect.

Counterpoint

Integration risk and increased leverage could pressure the stock if synergies fall short.

Key entities

  • Clean Harbors, Inc.

    Acquirer, US‑listed environmental services firm.

  • EnviroServe

    National waste‑management provider acquired by Clean Harbors.

  • ES&H

    Regional emergency‑response provider acquired by Clean Harbors.

Related articles

$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.