Company lists · Data refreshed October 2026

Top 25 Environmental compliance consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 11,177 companies tracked

RevenueBase identified 11,177 company matches for environmental compliance consulting firms worldwide as of October 2026 and tracks 121,644 professional contacts across them, including 43,076 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for environmental compliance consulting 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 October 1, 2026. Country and city lists for environmental compliance consulting 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 Oct 1, 2026 How this list was built

11,177Companies

121,644Contacts tracked

43,076Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest environmental compliance consulting firms worldwide

Ranked by team size

Top 25 of 11,177 company matches for environmental compliance consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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	Civil & Environmental Consultants, INC	Exact match	Moon Township, PA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	2,145 contacts →
	Exact match “Civil & Environmental Consultants, Inc.(CEC) provides comprehensive market-oriented consulting services that advance the strategic business objectives of its clients.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Aparajitha Corporate Services Private Limited	Exact match	Madurai, IndiaHQ recorded Oct 1, 2026	1,001-5,000	2,064 contacts →
	Exact match “Aparajitha: Revolutionising India's Regulatory Compliance Space With 25 years of experience, Aparajitha covers compliance for over establishments, factories, and 52 lakh contract…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Swca Environmental Consultants	Exact match	Phoenix, AZ, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,629 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 · Oct 1, 2026 · View company records in RevenueBase
4	Montrose Environmental Group	Exact match	Little Rock, AR, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,529 contacts →
	Exact match “Onterris (formerly Montrose Environmental Group) was one of the first to see environmental responsibility as not just an imperative but as a strategic asset.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	DGE Danmark	Exact match	Højbjerg, DenmarkHQ recorded Oct 1, 2026	n/a	1,176 contacts →
	Exact match “Miljø er vores kernekompetence og vores ansvar.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Apex Companies	Exact match	Rockville, MD, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,137 contacts →
	Exact match “Who is Apex?” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Barr Engineering CO	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,088 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 · Oct 1, 2026 · View company records in RevenueBase
8	IEA	Exact match	Brooklyn Park, MN, United StatesHQ recorded Oct 1, 2026	n/a	982 contacts →
	Exact match “The Institute for Environmental Assessment, Inc.(IEA) is small business committed to providing trusted environmental safety consulting services for private and public…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Trinity Consultants	Exact match	Dallas, TX, United StatesHQ recorded Oct 1, 2026	1,001-5,000	961 contacts →
	Exact match “Trinity Consultants is a global team of experts helping organizations solve complex challenges in environmental compliance, ecological protection, infrastructure performance, and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Alliance Technical Group	Exact match	Decatur, AL, United StatesHQ recorded Oct 1, 2026	1,001-5,000	956 contacts →
	Exact match “Alliance is a new kind of environmental services company-powered by innovation, focused on service, and committed to client success.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Pinchin In Canada	Exact match	Mississauga, ON, CanadaHQ recorded Oct 1, 2026	1,001-5,000	895 contacts →
	Exact match “Pinchin Ltd.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	ATC Group Services LLC	Exact match	Lafayette, LA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	865 contacts →
	Exact match “ATC Group Services LLC is now Atlas.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Pares&alvarez	Exact match	Santiago, ChileHQ recorded Oct 1, 2026	501-1,000	807 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 · Oct 1, 2026 · View company records in RevenueBase
14	The Foth Companies	Exact match	De Pere, WI, United StatesHQ recorded Oct 1, 2026	501-1,000	781 contacts →
	Exact match “By combining science, engineering, and technology with a true collaborative spirit, Foth has delivered innovative solutions to our clients since 1938.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Environmental Science Associates	Exact match	San Francisco, CA, United StatesHQ recorded Oct 1, 2026	501-1,000	732 contacts →
	Exact match “ESA is a 100% employee-owned environmental consulting firm.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Antea Group USA	Exact match	St. Paul, MN, United StatesHQ recorded Oct 1, 2026	1,001-5,000	658 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 · Oct 1, 2026 · View company records in RevenueBase
17	Trihydro Corporation	Exact match	Laramie, WY, United StatesHQ recorded Oct 1, 2026	501-1,000	577 contacts →
	Exact match “Headquartered in Laramie, Wyoming, Trihydro provides environmental consulting, engineering and surveying, air quality and process management, information technology, and water and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	CTA Engenharia	Exact match	Rio De Janeiro, BrazilHQ recorded Oct 1, 2026	201-500	540 contacts →
	Exact match “A CTA foi criada em 1995, em Belo Horizonte Minas Gerais, ampliando sua atividade e posicionando sua sede no estado do Rio de Janeiro em Duque de Caxias, próximo ao Pólo…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	VLS Environmental Solutions, LLC	Exact match	Houston, TX, United StatesHQ recorded Oct 1, 2026	1,001-5,000	481 contacts →
	Exact match “At VLS, we address your company’s most significant hurdles with waste management and compliance through sustainable solutions.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Anchor QEA	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	501-1,000	479 contacts →
	Exact match “Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Rincon Consultants	Exact match	Ventura, CA, United StatesHQ recorded Oct 1, 2026	501-1,000	479 contacts →
	Exact match “Rincon Consultants is a multi-disciplinary environmental sciences, planning, and engineering consulting firm that provides quality professional services to government and industry.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Enhesa	Exact match	Arlington, VA, United StatesHQ recorded Oct 1, 2026	201-500	474 contacts →
	Exact match “At Enhesa we empower the world’s largest businesses to achieve compliance, manage risk, and drive sustainability with clear, actionable insights.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	Vertex Resource Group LTD	Exact match	Sherwood Park, AB, CanadaHQ recorded Oct 1, 2026	1,001-5,000	471 contacts →
	Exact match “Since 1962, Vertex has been a leading North American provider of environmental services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Sete Soluções E Tecnologia Ambiental	Exact match	Belo Horizonte, BrazilHQ recorded Oct 1, 2026	501-1,000	448 contacts →
	Exact match “Somos uma das maiores consultorias em meio ambiente do Brasil, fundada em 1997, contando, hoje, com uma equipe técnica multidisciplinar permanente, que congrega profissionais das…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Groundwater & Environmental Services, INC	Exact match	Wall Township, NJ, United StatesHQ recorded Oct 1, 2026	201-500	447 contacts →
	Exact match “We are Groundwater & Environmental Services, Inc, better known as GES.” Recorded in the RevenueBase company graph · Oct 1, 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 compliance consulting 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 11,177 environmental compliance consulting firms worldwide

See the full list, filter by size, metro and specialty, and access 43,076 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Environmental compliance consulting firms worldwide at a glance

As of Oct 1, 2026

35.4%Verified-email coverage

10.9Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · Sao Paulo

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

7,161

11-50

3,137

51-200

645

201-500

126

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 compliance consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “environmental compliance consulting 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 43,076 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 October 1, 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 compliance consulting firms by location

55 lists · largest first

Every Environmental compliance consulting 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 compliance consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental compliance consulting firms are there worldwide?

RevenueBase identified 11,177 company matches for environmental compliance consulting firms worldwide as of October 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?

Civil & Environmental Consultants, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most environmental compliance consulting firms?

The United States leads with 3,054 companies, followed by Brazil (1,866) and Canada (428). Every environmental compliance consulting firms list by country and city is linked on this page.

Which city has the most environmental compliance consulting firms?

Sao Paulo leads with 199 company records, followed by Belo Horizonte (83) and Curitiba (73).

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 43,076 professional contacts with verified work emails tracked across these 11,177 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 October 1, 2026.

Ready to reach these companies? Verified emails and direct dials for all 11,177 environmental compliance consulting firms worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.