Company lists · Data refreshed November 2026

Top 25 Environmental impact assessment consultants worldwide

Name: Environmental impact assessment consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 13,614 companies tracked

RevenueBase identified 13,614 company matches for environmental impact assessment consultants worldwide as of November 2026 and tracks 176,789 professional contacts across them, including 60,222 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.

This list covers company matches for environmental impact assessment consultants 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 impact assessment consultants 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

13,614Companies

176,789Contacts tracked

60,222Verified emails

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The 25 largest environmental impact assessment consultants worldwide

Ranked by team size

Top 25 of 13,614 company matches for environmental impact assessment consultants 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	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
2	Swca Environmental Consultants	Exact match	Phoenix, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,695 contacts →
	Exact match “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Apex Companies	Exact match	Rockville, MD, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,321 contacts →
	Exact match “Who is Apex?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	DGE Danmark	Exact match	Højbjerg, DenmarkHQ recorded Nov 6, 2026	n/a	1,192 contacts →
	Exact match “Miljø er vores kernekompetence og vores ansvar.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Barr Engineering CO	Exact match	Minneapolis, NV, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,146 contacts →
	Exact match “Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Trinity Consultants	Exact match	Dallas, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,114 contacts →
	Exact match “Trinity Consultants is a global team of specialists helping organizations solve complex challenges in environmental compliance, ecological protection, infrastructure and built…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Tonkin Taylor	Exact match	Auckland Central, New ZealandHQ recorded Nov 6, 2026	1,001-5,000	962 contacts →
	Exact match “At Tonkin + Taylor, we’re dedicated to creating and sustaining a better world together.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Parametrix	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	501-1,000	923 contacts →
	Exact match “At Parametrix, we help our clients imagine what's possible.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Pares&alvarez	Exact match	Santiago, ChileHQ recorded Nov 6, 2026	501-1,000	878 contacts →
	Exact match “We are Pares & Alvarez, our extensive experience and the recognition of our clients makes us one of the leading Engineering Companies in environmental, consulting, engineering and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	ATC Group Services LLC	Exact match	Lafayette, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	876 contacts →
	Exact match “ATC Group Services LLC is now Atlas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	DUDEK	Exact match	Encinitas, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	829 contacts →
	Exact match “Dudek is an environmental, planning, and engineering consulting firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Tauw Nederland	Exact match	Deventer, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	818 contacts →
	Exact match “TAUW is een Europees advies- en ingenieursbureau.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Integral S.A. Ingenieros Consultores	Exact match	Medellín \| Bogotá \| Lima \| Miami \| Nueva Delhi, ColombiaHQ recorded Nov 6, 2026	1,001-5,000	809 contacts →
	Exact match “Over six decades offering our consultancy services locally and internationally, based on ethical principles and commitments, always through honest, socially responsible actions…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Environmental Science Associates	Exact match	San Francisco, OR, United StatesHQ recorded Nov 6, 2026	501-1,000	748 contacts →
	Exact match “ESA is a 100% employee-owned environmental consulting firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Dalcour Maclaren	Exact match	Chesterton, United KingdomHQ recorded Nov 6, 2026	501-1,000	667 contacts →
	Exact match “Dalcour Maclaren: delivering land, stakeholder and environmental solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	CSD Engineers	Exact match	Givisiez, SwitzerlandHQ recorded Nov 6, 2026	1,001-5,000	662 contacts →
	Exact match “CSD is one of the leading engineering consultancy enterprises in Switzerland.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Antea Group USA	Exact match	St. Paul, MD, United StatesHQ recorded Nov 6, 2026	1,001-5,000	649 contacts →
	Exact match “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Waterman Group	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	607 contacts →
	Exact match “Waterman Group is a multidisciplinary consultancy providing sustainable solutions to meet the planning, engineering design and project delivery needs of the property…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Prosul	Exact match	Florianopolis, BrazilHQ recorded Nov 6, 2026	501-1,000	587 contacts →
	Exact match “Especializada na prestação de serviços de engenharia consultiva, com mais de 30 anos de experiência, a PROSUL atua nas mais diversas áreas da infraestrutura.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	MM Pakistan Pvt. Limited Official Page	Exact match	Lahore, PakistanHQ recorded Nov 6, 2026	1,001-5,000	576 contacts →
	Exact match “MM Pakistan (Pvt.) Ltd.(MMP) is an independent engineering, management and development consultancy, operating in all major sectors of the economy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Biotope	Exact match	Mèze, FranceHQ recorded Nov 6, 2026	201-500	555 contacts →
	Exact match “Fondée en 1993 par des passionnés de nature engagés, Biotope s’est imposée au fil des années comme précurseur et leader mondial de l’ingénierie environnementale et de la…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	EBI Consulting	Exact match	Burlington, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	553 contacts →
	Exact match “EBI Consulting is a national environmental and engineering consulting firm helping asset owners, investors, lenders, operators, and telecom infrastructure providers protect value…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	NIP DO Brasil	Exact match	Vitória, BrazilHQ recorded Nov 6, 2026	501-1,000	549 contacts →
	Exact match “Somos uma empresa de Engenharia Consultiva, oferecendo serviços para os mercados de energia, petróleo e gás, saneamento e recursos hídricos, transporte, telecomunicações e…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Nova Engineering And Environmental, LLC	Exact match	Kennesaw, FL, United StatesHQ recorded Nov 6, 2026	501-1,000	541 contacts →
	Exact match “Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	BSC Group	Exact match	Boston, MA, United StatesHQ recorded Nov 6, 2026	51-200	531 contacts →
	Exact match “BSC Group, Inc.(BSC) is a multidisciplinary consulting firm with a staff of more than 200 professionals and offices in Boston, Worcester, Andover, and West Yarmouth, MA, as well…” 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 impact assessment consultants”. 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 13,614 environmental impact assessment consultants worldwide

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Environmental impact assessment consultants worldwide at a glance

As of Nov 6, 2026

34.1%Verified-email coverage

13.0Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

8,585

11-50

3,757

51-200

850

201-500

181

501-1,000

1,001-5,000

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 impact assessment consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “environmental impact assessment consultants” 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 60,222 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 impact assessment consultants by location

62 lists · largest first

Every Environmental impact assessment consultants 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 impact assessment consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental impact assessment consultants are there worldwide?

RevenueBase identified 13,614 company matches for environmental impact assessment consultants 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?

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

Which country has the most environmental impact assessment consultants?

Brazil leads with 1,889 companies, followed by the United States (1,641) and the United Kingdom (1,028). Every environmental impact assessment consultants list by country and city is linked on this page.

Which city has the most environmental impact assessment consultants?

Sao Paulo leads with 189 company records, followed by Belo Horizonte (119) and London (103).

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 60,222 professional contacts with verified work emails tracked across these 13,614 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.