Company lists · Data refreshed September 2026

Top 25 Site remediation companies worldwide

Name: Site remediation companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 7,922 companies tracked

RevenueBase identified 7,922 site remediation companies worldwide as of September 2026 and tracks 143,042 professional contacts across them, including 45,158 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers site remediation companies 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 22, 2026. Country and city lists for site remediation companies 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 22, 2026 86% judged on-target in blind review

7,922Companies

143,042Contacts tracked

45,158Verified emails

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The 25 largest site remediation companies worldwide

Ranked by team size

Top 25 of 7,922 site remediation companies worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to site remediation companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Clean Harbors	Indirect evidence	Norwell, MA, United StatesHQ checked Sep 22, 2026	10001+	8,924 contacts →
	Indirect evidence “Clean Harbors is North America’s leading provider of environmental and industrial services.” Source: RevenueBase Database · checked Sep 22, 2026
2	GFL Environmental INC	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 22, 2026	10001+	6,179 contacts →
	Indirect evidence “GFL Environmental is the only major diversified environmental services company in North America offering services in solid waste management, liquid waste management and soil…” Source: RevenueBase Database · checked Sep 22, 2026
3	Golder	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 22, 2026	5,001-10,000	3,167 contacts →
	Indirect evidence “Golder was acquired by WSP.” Source: RevenueBase Database · checked Sep 22, 2026
4	Veolia Australia & NEW Zealand	Indirect evidence	Pyrmont, AustraliaHQ checked Sep 22, 2026	5,001-10,000	2,476 contacts →
	Indirect evidence “Veolia Australia and New Zealand is a leading provider of environmental solutions across water and wastewater services, industrial cleaning, waste management and resource recovery…” Source: RevenueBase Database · checked Sep 22, 2026
5	Montrose Environmental Group	Indirect evidence	Little Rock, AR, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,529 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 22, 2026
6	Weston Solutions, INC	Indirect evidence	West Chester, PA, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,441 contacts →
	Indirect evidence “Weston Solutions, Inc.(Weston) is a 100% employee-owned environmental and infrastructure services firm committed to safety and providing measurable client value.” Source: RevenueBase Database · checked Sep 22, 2026
7	PMI	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 22, 2026	n/a	1,308 contacts →
	Indirect evidence “Training and Development Solutions” Source: RevenueBase Database · checked Sep 22, 2026
8	DGE Danmark	Indirect evidence	Højbjerg, DenmarkHQ checked Sep 22, 2026	n/a	1,176 contacts →
	Indirect evidence “Miljø er vores kernekompetence og vores ansvar.” Source: RevenueBase Database · checked Sep 22, 2026
9	Alliance Technical Group	Indirect evidence	Decatur, AL, United StatesHQ checked Sep 22, 2026	1,001-5,000	956 contacts →
	Indirect evidence “Alliance is a new kind of environmental services company-powered by innovation, focused on service, and committed to client success.” Source: RevenueBase Database · checked Sep 22, 2026
10	Interagua Ecuador	Indirect evidence	Guayaquil, EcuadorHQ checked Sep 22, 2026	501-1,000	783 contacts →
	Indirect evidence “Somos una empresa sólida, confiable, orientada al cliente; líder en el manejo ambiental, con procesos de calidad, tecnología y recursos humanos competentes.” Source: RevenueBase Database · checked Sep 22, 2026
11	Sarp Industries	Partial evidence	Limay, FranceHQ checked Sep 22, 2026	1,001-5,000	753 contacts →
	Partial evidence “The leading company in Europe for the treatment and recovery of hazardous waste and polluted sites.” Source: RevenueBase Database · checked Sep 22, 2026
12	Promotora Ambiental S.A.B. DE C.V	Indirect evidence	Santa María, MexicoHQ checked Sep 22, 2026	5,001-10,000	677 contacts →
	Indirect evidence “En Promotora Ambiental nos hemos especializado en brindar soluciones ambientales a los sectores público y privado, en los campos de comercio e industria.” Source: RevenueBase Database · checked Sep 22, 2026
13	ENI Rewind	Indirect evidence	San Donato Milanese, ItalyHQ checked Sep 22, 2026	1,001-5,000	543 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 22, 2026
14	CTA Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 22, 2026	201-500	540 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 22, 2026
15	Vital Engenharia Ambiental	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 22, 2026	5,001-10,000	500 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 22, 2026
16	LX Argentina S.A	Indirect evidence	Ciudad Autónoma De Buenos Aires, ArgentinaHQ checked Sep 22, 2026	1,001-5,000	484 contacts →
	Indirect evidence “We are a company that provides industrial cleaning, maintenance and induatrial hygiene.” Source: RevenueBase Database · checked Sep 22, 2026
17	Entact, LLC	Partial evidence	Westmont, IL, United StatesHQ checked Sep 22, 2026	501-1,000	483 contacts →
	Partial evidence “ENTACT is the partner of choice in solving our customer's most complex environmental remediation and geotechnical infrastructure challenges.” Source: RevenueBase Database · checked Sep 22, 2026
18	VLS Environmental Solutions, LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	1,001-5,000	481 contacts →
	Indirect evidence “At VLS, we address your company’s most significant hurdles with waste management and compliance through sustainable solutions.” Source: RevenueBase Database · checked Sep 22, 2026
19	Rincon Consultants	Indirect evidence	Ventura, CA, United StatesHQ checked Sep 22, 2026	501-1,000	479 contacts →
	Indirect 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 22, 2026
20	Tomlinson Group Of Companies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 22, 2026	501-1,000	475 contacts →
	Indirect evidence “Starting with a single-axle dump truck in 1952, R.W.” Source: RevenueBase Database · checked Sep 22, 2026
21	Vertex Resource Group LTD	Indirect evidence	Sherwood Park, AB, CanadaHQ checked Sep 22, 2026	1,001-5,000	471 contacts →
	Indirect evidence “Since 1962, Vertex has been a leading North American provider of environmental services.” Source: RevenueBase Database · checked Sep 22, 2026
22	Sete Soluções E Tecnologia Ambiental	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 22, 2026	501-1,000	448 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
23	Groundwater & Environmental Services, INC	Indirect evidence	Wall Township, NJ, United StatesHQ checked Sep 22, 2026	201-500	447 contacts →
	Indirect evidence “We are Groundwater & Environmental Services, Inc, better known as GES.” Source: RevenueBase Database · checked Sep 22, 2026
24	ROUX	Indirect evidence	Islandia, NY, United StatesHQ checked Sep 22, 2026	201-500	433 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 22, 2026
25	Hydrogeologic, INC	Partial evidence	Reston, VA, United StatesHQ checked Sep 22, 2026	501-1,000	430 contacts →
	Partial 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 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: site remediation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names site remediation companies.
Partial evidence: Its own public description names part of site remediation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name site remediation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 7,922 site remediation companies worldwide

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Site remediation companies worldwide at a glance

As of Sep 22, 2026

31.6%Verified-email coverage

18.1Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Sao Paulo

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

3,575

11-50

2,931

51-200

973

201-500

247

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among site remediation companies, 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 site remediation companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “site remediation companies”. 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 site remediation companies), 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 site remediation companies, 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, 45,158 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 22, 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.

Site remediation companies by location

28 lists · largest first

Every Site remediation companies 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 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 site remediation companies, 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 site remediation companies are there worldwide?

RevenueBase identified 7,922 site remediation companies 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?

Clean Harbors, headquartered in Norwell, tops this list with the largest team on record.

Which country has the most site remediation companies?

The United States leads with 2,696 companies, followed by Brazil (694) and Canada (442). Every site remediation companies list by country and city is linked on this page.

Which city has the most site remediation companies?

Sao Paulo leads with 104 headquartered companies, followed by Houston (59) and Calgary (57).

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 45,158 verified decision-maker contacts tracked across these 7,922 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 22, 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.