7.2.1Segment

Environmental Consulting & Engineering

Environmental consulting and engineering firms providing site assessment, permitting, and environmental compliance services.

4
Verticals

Overview

Environmental Consulting & Engineering covers the advisory and technical services that help clients comply with environmental regulation and manage environmental risk — site assessment, permitting, compliance, impact studies, ESG and sustainability advisory, and remediation engineering. At ~$21B it is led by large diversified firms (AECOM, Tetra Tech, Jacobs, ERM, Stantec) and a fragmented base of specialists.

Demand is driven by environmental regulation, infrastructure and energy projects, climate and ESG reporting, and emerging contaminants (PFAS), with ESG/sustainability and PFAS the fastest-growing practice areas. It is consolidating around scaled multidisciplinary firms and an active M&A arena for environmental and sustainability expertise.

Market snapshot

Market size
~$21B
Growth
~6.5%CAGR (2017–22, nominal)
Companies
~10,100
FragmentationConsolidating

U.S. Census Bureau 2022 CBP/Economic Census, NAICS 541620 (environmental consulting services).

Business model & economics

Revenue model
Professional advisory, compliance, and engineering fees
Recurring revenue
Moderate — recurring compliance and program work
EBITDA margin
Healthy professional-services economics
Capex intensity
Low
  • Site assessment, permitting, compliance, and ESG advisory.
  • PFAS and ESG/sustainability fastest-growing practices.
  • Consolidating around scaled multidisciplinary firms.

M&A deal context

High deal activity

Who’s acquiring

Diversified E&C / environmental firmsESG & sustainability acquirersPE-backed advisory platforms

What’s driving deals

  • Roll-up of environmental and ESG specialists.
  • PFAS, climate, and ESG-reporting demand.
  • Regulation- and infrastructure-driven work.

Verticals in this segment

  • 7.2.1.1Air Quality Consulting

    Environmental consultants managing air permits and emissions compliance.

  • 7.2.1.2Environmental Impact Assessment

    Firms preparing NEPA environmental impact statements and reviews.

  • 7.2.1.3Environmental Permitting & Compliance

    Consultancies managing environmental permits and regulatory filings.

  • 7.2.1.4Water Resources & Wetlands Consulting

    Firms providing hydrological and wetlands permitting services.

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