Company lists · Data refreshed September 2026

Top 25 Brownfield redevelopment consultants worldwide

RevenueBase identified 4,405 brownfield redevelopment consultants worldwide as of September 2026 and tracks 48,227 professional contacts across them, including 17,668 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers brownfield redevelopment consultants worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026. Country and city lists for brownfield redevelopment consultants follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
4,405Companies
48,227Contacts tracked
17,668Verified emails
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The 25 largest brownfield redevelopment consultants worldwide

Ranked by team size
Top 25 of 4,405 brownfield redevelopment consultants worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to brownfield redevelopment consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLittle Rock, AR, United StatesHQ checked Sep 19, 20261,001-5,0001,529 contacts →

Indirect evidence

“Onterris (formerly Montrose Environmental Group) was one of the first to see environmental responsibility as not just an imperative but as a strategic asset.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceHøjbjerg, DenmarkHQ checked Sep 19, 2026n/a1,176 contacts →

Indirect evidence

“Miljø er vores kernekompetence og vores ansvar.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceSevilla, SpainHQ checked Sep 19, 20261,001-5,000688 contacts →

Indirect evidence

“INERCO, with 30 years of experience, offers comprehensive services and develops advanced technologies that contribute to sustainable industrial development, acting as a leader in…”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceSan Donato Milanese, ItalyHQ checked Sep 19, 20261,001-5,000543 contacts →

Indirect evidence

“We are Eni’s environmental company active for over 20 years, in giving new life, according to the principles of the circular economy, to industrial land, water and waste through…”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 19, 2026201-500540 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceBurlington, MA, United StatesHQ checked Sep 19, 2026501-1,000535 contacts →

Indirect evidence

“For 35 years we have been helping investors, lenders, owners, developers, contractors, and property managers reduce risk and optimize their built facilities, infrastructure and…”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceVentura, CA, United StatesHQ checked Sep 19, 2026501-1,000479 contacts →

Partial evidence

“Rincon Consultants is a multi-disciplinary environmental sciences, planning, and engineering consulting firm that provides quality professional services to government and industry.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceWall Township, NJ, United StatesHQ checked Sep 19, 2026201-500447 contacts →

Indirect evidence

“We are Groundwater & Environmental Services, Inc, better known as GES.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceIslandia, NY, United StatesHQ checked Sep 19, 2026201-500433 contacts →

Indirect evidence

“Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceReston, VA, United StatesHQ checked Sep 19, 2026501-1,000430 contacts →

Indirect evidence

“HydroGeoLogic, Inc.(HGL) is an employee-owned company with over 36 years of experience developing innovative, effective, and sustainable engineering and remediation solutions to…”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceSt Leonards, AustraliaHQ checked Sep 19, 2026201-500361 contacts →

Indirect evidence

“At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceVancouver, BC, CanadaHQ checked Sep 19, 2026201-500351 contacts →

Partial evidence

“Triton Environmental Consultants knows western Canada.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceGainesville, FL, United StatesHQ checked Sep 19, 2026201-500305 contacts →

Indirect evidence

“Environmental Consulting & Technology, Inc.(ECT) is a multi-disciplinary environmental and sustainability consulting firm delivering strategy, permitting, design, and management…”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceMargny-lès-compiègne, FranceHQ checked Sep 19, 202651-200286 contacts →

Indirect evidence

“Entreprise spécialisée en génie environnemental, Brézillon agit depuis près de 30 ans pour préserver, restaurer et valoriser les terrains sur l’ensemble du territoire national.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceParis, FranceHQ checked Sep 19, 2026501-1,000279 contacts →

Indirect evidence

“VALGO - Régénérer, Rénover, Revaloriser Entreprise internationale spécialisée dans la réhabilitation des sites pollués, VALGO transforme les sols, bâtiments et infrastructures…”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceVilleurbanne, FranceHQ checked Sep 19, 2026201-500278 contacts →

Indirect evidence

“Créé en 1991, reconnu comme l’un des meilleurs cabinets français spécialiste de la transformation écologique, EODD ingénieurs conseils apporte sa vision transversale et ses…”

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceSydney, AustraliaHQ checked Sep 19, 2026201-500262 contacts →

Partial evidence

“Established in 1996, JBS & G is one of Australia’s leading environmental consultancies with offices in Sydney, Melbourne, Perth, Adelaide, Brisbane, Canberra, Darwin, Wollongong…”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceHouston, TX, United StatesHQ checked Sep 19, 2026201-500259 contacts →

Indirect evidence

“GSI Environmental, Inc.(GSI), is an environmental engineering and science consulting firm committed to measuring, analyzing, and solving complex environmental problems around the…”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceSpringfield, MO, United StatesHQ checked Sep 19, 2026201-500238 contacts →

Indirect evidence

“Environmental Works, Inc.(EWI) offers truly comprehensive environmental solutions for a variety of industries, businesses, and municipalities.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceSilkeborg, DenmarkHQ checked Sep 19, 2026201-500213 contacts →

Indirect evidence

“Dansk Miljørådgivning A/S (DMR) er et rådgivende ingeniørfirma, der yder rådgivning indenfor bl.a:* forureningsundersøgelser og udarbejdelse af risikovurderinger.* oprensning af…”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceUnion, NJ, United StatesHQ checked Sep 19, 2026201-500209 contacts →

Indirect evidence

“Hillmann has been a well-recognized leader in the Environmental Health & Safety, Due Diligence & Remediation Management, and Construction Services industries since 1985.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceFazenda Rio Grande, BrazilHQ checked Sep 19, 202651-200201 contacts →

Indirect evidence

“A GEOAMBIENTE Geologia e Engenharia Ambiental atua no Gerenciamento de Áreas Contaminadas provendo soluções em Diagnóstico de Passivos Ambientais e Remediação de Solo e Água…”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceAtlanta, United StatesHQ checked Sep 19, 2026201-500188 contacts →

Indirect evidence

“With more than 50 years of excellence, KEMRON Environmental Services, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceSt. Paul, MN, United StatesHQ checked Sep 19, 2026201-500187 contacts →

Indirect evidence

“Bay West is an environmental and industrial services provider for site investigations, groundwater and soil remediation, munitions cleanup, hazardous waste management, industrial…”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidenceVancouver, BC, CanadaHQ checked Sep 19, 202651-200186 contacts →

Partial evidence

“PGL Environmental Consultants consistently provides clients with a high level of support and confidence in our environmental management and planning decisions by combining…”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 4,405 brownfield redevelopment consultants worldwide

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Brownfield redevelopment consultants worldwide at a glance

As of Sep 19, 2026
36.6%Verified-email coverage
10.9Average contacts per company
1-10Median size (employees)
2.2%Largest-city concentration · Sao Paulo
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
2,624
11-50
1,379
51-200
283
201-500
68
501-1,000
12
1,001-5,000
11
5,001-10,000
2
10001+
2

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among brownfield redevelopment consultants, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for brownfield redevelopment consultants are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “brownfield redevelopment consultants”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names brownfield redevelopment consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among brownfield redevelopment consultants, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 17,668 across the full list. 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.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Brownfield redevelopment consultants by location

16 lists · largest first

Every Brownfield redevelopment consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names brownfield redevelopment consultants, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many brownfield redevelopment consultants are there worldwide?

RevenueBase identified 4,405 brownfield redevelopment consultants worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Montrose Environmental Group, headquartered in Little Rock, tops this list with the largest team on record.

Which country has the most brownfield redevelopment consultants?

The United States leads with 1,299 companies, followed by Brazil (595) and France (255). Every brownfield redevelopment consultants list by country and city is linked on this page.

Which city has the most brownfield redevelopment consultants?

Sao Paulo leads with 98 headquartered companies, followed by Calgary (28) and Belo Horizonte (26).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 17,668 verified decision-maker contacts tracked across these 4,405 companies.

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 Smart Search, 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.