Company lists · Data refreshed November 2026

Top 25 Environmental consulting engineering firms worldwide

Name: Environmental consulting engineering firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 61,056 companies tracked

RevenueBase identified 61,056 company matches for environmental consulting engineering firms worldwide as of November 2026 and tracks 1,561,918 professional contacts across them, including 544,431 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for environmental consulting engineering firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for environmental consulting engineering firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

61,056Companies

1,561,918Contacts tracked

544,431Verified emails

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The 25 largest environmental consulting engineering firms worldwide

Ranked by team size

Top 25 of 61,056 company matches for environmental consulting engineering firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	AECOM	Exact match	Dallas, TX, United StatesHQ recorded Nov 6, 2026	10001+	68,572 contacts →
	Exact match “AECOM is the global infrastructure leader, committed to delivering a better world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Jacobs	Exact match	Dallas, TX, United StatesHQ recorded Nov 6, 2026	10001+	50,733 contacts →
	Exact match “At Jacobs, we're challenging today to reinvent tomorrow – delivering outcomes and solutions for the world's most complex challenges.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Arcadis	Exact match	Amsterdam, CO, United KingdomHQ recorded Nov 6, 2026	10001+	36,645 contacts →
	Exact match “Arcadis is a leading global partner, delivering transformative projects with businesses, cities and industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Stantec	Exact match	Edmonton, AB, CanadaHQ recorded Nov 6, 2026	10001+	30,633 contacts →
	Exact match “Stantec empowers clients, people, and communities to rise to the world’s greatest challenges at a time when the world faces more unprecedented concerns than ever before.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Bechtel Corporation	Exact match	Reston, VA, United StatesHQ recorded Nov 6, 2026	10001+	29,287 contacts →
	Exact match “Bechtel is a trusted engineering, construction and project management partner to industry and government.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	WOOD	Exact match	Aberdeen, United KingdomHQ recorded Nov 6, 2026	10001+	16,375 contacts →
	Exact match “Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	GHD	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	10001+	15,329 contacts →
	Exact match “We are committed to addressing the world’s biggest challenges in the areas of water, energy and communities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Tetra Tech	Exact match	Pasadena, CA, United StatesHQ recorded Nov 6, 2026	10001+	14,232 contacts →
	Exact match “Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Kimley-Horn	Exact match	Raleigh, NC, United StatesHQ recorded Nov 6, 2026	5,001-10,000	11,227 contacts →
	Exact match “Kimley-Horn is one of the nation’s premier planning and design consulting firms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	WSP In Canada	Exact match	Montreal, ON, CanadaHQ recorded Nov 6, 2026	10001+	10,470 contacts →
	Exact match “We are one of the world’s leading professional services firms, uniting our engineering, advisory and science-based expertise to shape communities to advance humanity.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Tata Consulting Engineers	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	5,001-10,000	8,994 contacts →
	Exact match “Tata Consulting Engineers Limited (TCE) is the largest Indian private sector engineering and project consultancy and an emerging global leader in integrated engineering solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	CDM Smith	Exact match	Boston, MA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	8,143 contacts →
	Exact match “CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	COWI	Exact match	Lyngby, DenmarkHQ recorded Nov 6, 2026	5,001-10,000	7,737 contacts →
	Exact match “Together with customers, partners and colleagues, we shape a future where people and societies grow and flourish.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	TRC Companies, INC	Exact match	Windsor, CT, United StatesHQ recorded Nov 6, 2026	5,001-10,000	7,280 contacts →
	Exact match “TRC, a member of WSP, stands for adaptability.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Terracon	Exact match	Olathe, NE, United StatesHQ recorded Nov 6, 2026	5,001-10,000	6,576 contacts →
	Exact match “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	JAN DE NUL Group	Exact match	Capellen, LuxembourgHQ recorded Nov 6, 2026	5,001-10,000	5,715 contacts →
	Exact match “We are World Builders shaping water, land and energy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Michael Baker International	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	4,504 contacts →
	Exact match “Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	RPS	Exact match	Abingdon, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	3,964 contacts →
	Exact match “Founded in 1970, RPS is part of Tetra Tech, a leading global provider of consulting and engineering services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Norconsult	Exact match	Sandvika, NorwayHQ recorded Nov 6, 2026	5,001-10,000	3,801 contacts →
	Exact match “Norconsult is a multidisciplinary engineering and design consultancy, providing services to clients in the public and private sectors worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Ortec Group	Exact match	Aix-en-provence, FranceHQ recorded Nov 6, 2026	10001+	3,602 contacts →
	Exact match “En conjuguant depuis sa création audace et rigueur, le groupe Ortec est devenu aujourd’hui un des leaders des services à l’industrie, l’énergie et l’environnement.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	National Engineering Services Pakistan PVT Limited Nespak	Exact match	Lahore, PakistanHQ recorded Nov 6, 2026	5,001-10,000	3,557 contacts →
	Exact match “NESPAK is Pakistan’s premier consultancy organization (established in 1973).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	CIMA	Exact match	Laval, QC, CanadaHQ recorded Nov 6, 2026	1,001-5,000	3,445 contacts →
	Exact match “CIMA+ provides a variety of consulting engineering services, namely in the areas of buildings, infrastructure, transportation, energy and resources, project management…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Golder	Exact match	Las Condes, CanadaHQ recorded Nov 6, 2026	5,001-10,000	3,239 contacts →
	Exact match “Golder was acquired by WSP.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Dewberry	Exact match	Fairfax, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,009 contacts →
	Exact match “Dewberry is a leading, market-facing firm with a proven history of providing professional services to a wide variety of public- and private-sector clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	NIRAS	Exact match	Allerød, DenmarkHQ recorded Nov 6, 2026	1,001-5,000	2,791 contacts →
	Exact match “At NIRAS, we engineer solutions for a shared future.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “environmental consulting engineering firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 61,056 environmental consulting engineering firms worldwide

See the full list, filter by size, metro and specialty, and access 544,431 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental consulting engineering firms worldwide at a glance

As of Nov 6, 2026

34.9%Verified-email coverage

25.6Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

33,003

11-50

19,311

51-200

5,805

201-500

1,430

501-1,000

442

1,001-5,000

368

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for environmental consulting engineering firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “environmental consulting engineering firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 544,431 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Environmental consulting engineering firms by location

304 lists · largest first

Every Environmental consulting engineering firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “environmental consulting engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental consulting engineering firms are there worldwide?

RevenueBase identified 61,056 company matches for environmental consulting engineering firms worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

AECOM tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most environmental consulting engineering firms?

The United States leads with 12,444 companies, followed by Brazil (6,137) and France (2,496). Every environmental consulting engineering firms list by country and city is linked on this page.

Which city has the most environmental consulting engineering firms?

Sao Paulo leads with 753 company records, followed by Belo Horizonte (377) and Lima (313).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 544,431 professional contacts with verified work emails tracked across these 61,056 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.