Company lists · Data refreshed September 2026

Top 25 Environmental management system consultants worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 20,773 companies tracked

RevenueBase identified 20,773 company matches for environmental management system consultants worldwide as of September 2026 and tracks 201,915 professional contacts across them, including 47,899 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.

This list covers company matches for environmental management system 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 September 19, 2026. Country and city lists for environmental management system 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 Sep 19, 2026 How this list was built

20,773Companies

201,915Contacts tracked

47,899Verified emails

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The 25 largest environmental management system consultants worldwide

Ranked by team size

Top 25 of 20,773 company matches for environmental management system consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	Autonomo	Exact match	Córdoba, SpainHQ recorded Sep 19, 2026	n/a	23,018 contacts →
	Exact match “Calidad y Gestión es una empresa consultora de ámbito internacional especializada en servicios de asesoría en las siguientes áreas: Calidad Medio Ambiente Responsabilidad social…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	ACE	Exact match	CanadaHQ recorded Sep 19, 2026	n/a	1,915 contacts →
	Exact match “consulting firm in quality and environmental management system, quality control,quality assurance and lean manufacturing and productivity improvement.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Swca Environmental Consultants	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
4	Montrose Environmental Group	Exact match	Little Rock, AR, United StatesHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
5	Adec Innovations	Exact match	Irvine, CA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,304 contacts →
	Exact match “ADEC Innovations seamlessly delivers fully integrated, cost-effective industry expertise, business process & data management, and software services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	RSK Group	Exact match	Helsby, United KingdomHQ recorded Sep 19, 2026	10001+	1,255 contacts →
	Exact match “RSK Group is a global leader in the delivery of environmental and engineering solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	DGE Danmark	Exact match	Højbjerg, DenmarkHQ recorded Sep 19, 2026	n/a	1,176 contacts →
	Exact match “Miljø er vores kernekompetence og vores ansvar.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	IEA	Exact match	Brooklyn Park, MN, United StatesHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
9	Trinity Consultants	Exact match	Dallas, TX, United StatesHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
10	Alliance Technical Group	Exact match	Decatur, AL, United StatesHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
11	ATC Group Services LLC	Exact match	Lafayette, LA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	865 contacts →
	Exact match “ATC Group Services LLC is now Atlas.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Pares&alvarez	Exact match	Santiago, ChileHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
13	Tauw Nederland	Exact match	Deventer, NetherlandsHQ recorded Sep 19, 2026	1,001-5,000	800 contacts →
	Exact match “TAUW is een Europees advies- en ingenieursbureau.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Interagua Ecuador	Exact match	Guayaquil, EcuadorHQ recorded Sep 19, 2026	501-1,000	783 contacts →
	Exact match “Somos una empresa sólida, confiable, orientada al cliente; líder en el manejo ambiental, con procesos de calidad, tecnología y recursos humanos competentes.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Antea Group - France	Exact match	Olivet, FranceHQ recorded Sep 19, 2026	1,001-5,000	737 contacts →
	Exact match “Antea Group est une société internationale d’ingénierie et de conseil en environnement.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Environmental Science Associates	Exact match	San Francisco, CA, United StatesHQ recorded Sep 19, 2026	501-1,000	732 contacts →
	Exact match “ESA is a 100% employee-owned environmental consulting firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Ricardo PLC	Exact match	London, United KingdomHQ recorded Sep 19, 2026	1,001-5,000	670 contacts →
	Exact match “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Antea Group USA	Exact match	St Paul, MN, United StatesHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
19	CTA Engenharia	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
20	EBI Consulting	Exact match	Burlington, MA, United StatesHQ recorded Sep 19, 2026	501-1,000	535 contacts →
	Exact match “For 35 years we have been helping investors, lenders, owners, developers, contractors, and property managers reduce risk and optimize their built facilities, infrastructure and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Diagonal	Exact match	Sao Paulo, BrazilHQ recorded Sep 19, 2026	501-1,000	527 contacts →
	Exact match “Diagonal is a pioneering socio-environmental management consultancy that helps companies, organizations and governments to raise their ESG standard and generate a positive…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Boslan Ingeniería Y Consultoría	Exact match	Bilbao, SpainHQ recorded Sep 19, 2026	501-1,000	526 contacts →
	Exact match “Boslan, now part of Accenture, is a consolidated and solvent company supported by its numerous references developed for an important portfolio of clients.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Service Engenharia	Exact match	Salvador, BrazilHQ recorded Sep 19, 2026	1,001-5,000	519 contacts →
	Exact match “A SERVICE Engenharia é uma empresa de prestação de serviços de Consultoria, Planejamento, Administração, Fiscalização, Manutenção, Construção e Montagem Industrial, atuando em…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Vital Engenharia Ambiental	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 19, 2026	5,001-10,000	500 contacts →
	Exact match “Vital Engenharia Ambiental is an environmental services company based out of R Santa Luzia, 651, 21 Andar Parte, Rio De Janeiro, Rio De Janeiro, Brazil.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Rincon Consultants	Exact match	Ventura, CA, United StatesHQ recorded Sep 19, 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 · Sep 19, 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 management system 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 20,773 environmental management system consultants worldwide

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Environmental management system consultants worldwide at a glance

As of Sep 19, 2026

23.7%Verified-email coverage

9.7Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

14,342

11-50

5,134

51-200

936

201-500

194

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 management system consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “environmental management system 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 47,899 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 September 19, 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 management system consultants by location

74 lists · largest first

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

How many environmental management system consultants are there worldwide?

RevenueBase identified 20,773 company matches for environmental management system consultants worldwide as of September 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?

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

Which country has the most environmental management system consultants?

Brazil leads with 2,840 companies, followed by the United States (2,091) and Italy (1,002). Every environmental management system consultants list by country and city is linked on this page.

Which city has the most environmental management system consultants?

Sao Paulo leads with 354 company records, followed by Lima (223) and Belo Horizonte (135).

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 47,899 professional contacts with verified work emails tracked across these 20,773 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 September 19, 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.