Company lists · Data refreshed November 2026

Top 25 Groundwater contamination specialists worldwide

RevenueBase identified 1,134 company matches for groundwater contamination specialists worldwide as of November 2026 and tracks 12,295 professional contacts across them, including 4,444 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for groundwater contamination specialists 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 groundwater contamination specialists 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
1,134Companies
12,295Contacts tracked
4,444Verified emails
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The 25 largest groundwater contamination specialists worldwide

Ranked by team size
Top 25 of 1,134 company matches for groundwater contamination specialists 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSan Donato Milanese, ItalyHQ recorded Nov 6, 20261,001-5,000550 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchFazenda Rio Grande, BrazilHQ recorded Nov 6, 202651-200226 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchParis, FranceHQ recorded Nov 6, 2026201-500203 contacts →

Exact match

“Bureau d’études techniques fondé en 1974, setec hydratec s’est positionné en tant qu’expert sur tous les sujets liés à l’ingénierie de l’eau et des sites et sols pollués, afin de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAtlanta, IL, United StatesHQ recorded Nov 6, 2026201-500198 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSt. Paul, MN, United StatesHQ recorded Nov 6, 2026201-500190 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchDallas, NM, United StatesHQ recorded Nov 6, 202651-200150 contacts →

Exact match

“OUR MISSION is to combine sustainable environmental solutions with forward-thinking, cost-effective, innovative, and value-added technologies that balance our clients’ economic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchFort Collins, SK, United StatesHQ recorded Nov 6, 202651-200149 contacts →

Exact match

“Ensero Solutions is an environmental consulting and remediation business with specific expertise in environmental assessments and permitting solutions, mine water management…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSittingbourne, United KingdomHQ recorded Nov 6, 202651-200129 contacts →

Exact match

“Ecologia is a multidisciplinary service provider within the contaminated land sector, offering remediation works, site investigation including geotechnical assessment and waste…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWharton, NJ, United StatesHQ recorded Nov 6, 202651-200125 contacts →

Exact match

“GWTT is one of the only U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202651-200122 contacts →

Exact match

“O Grupo EPA oferece as melhores e mais inovadoras soluções para diagnosticar áreas contaminadas, realizar projetos e operar estações de tratamento de água e efluentes e remediar…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSan Clemente, CA, United StatesHQ recorded Nov 6, 202651-200121 contacts →

Exact match

“REGENESIS is the global leader in technology-based solutions for the environment with an emphasis on contaminated site remediation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202651-200121 contacts →

Exact match

“Desafios ambientais complexos exigem conhecimento embasado, ciência aplicada e execução precisa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCalgary, BC, CanadaHQ recorded Nov 6, 202651-200118 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLangley, ON, CanadaHQ recorded Nov 6, 202651-200108 contacts →

Exact match

“No other environmental contractor in Canada can claim the same level of engineering and project-management expertise as Milestone.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchOrange, CA, United StatesHQ recorded Nov 6, 202611-5095 contacts →

Exact match

“EEC Environmental is a national environmental consulting firm that specializes in water, wastewater, stormwater, regulatory compliance, safety, and assessment and remediation of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchJacksonville, FL, United StatesHQ recorded Nov 6, 202651-20089 contacts →

Exact match

“Aerostar SES LLC (ASL) is committed to delivering innovative solutions for our clients’ environmental, engineering, and remediation needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchAlbuquerque, TX, United StatesHQ recorded Nov 6, 202651-20088 contacts →

Exact match

“Daniel B.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLawrenceville, NJ, United StatesHQ recorded Nov 6, 202611-5087 contacts →

Exact match

“ISOTEC Remediation Technologies is a trusted provider of cost-effective, turnkey in-situ remediation solutions for government, commercial/industrial, and residential environmental…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLa Tour Du Pin, FranceHQ recorded Nov 6, 202651-20085 contacts →

Exact match

“ENVISOL est une entreprise spécialisée dans le conseil et l’ingénierie offrant des prestations dans le domaine des sites et sols pollués.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHigh Point, NC, United StatesHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“A&D is a full service environmental remediation and industrial service company specializing in remediation (soil/groundwater,etc.), industrial cleaning and decontamination…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMadison, LA, United StatesHQ recorded Nov 6, 202611-5078 contacts →

Exact match

“Founded in 1990, BEM Systems, Inc.(BEM) is an environmental, engineering, and information management firm specializing in remedial investigations and environmental management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20077 contacts →

Exact match

“ALC provides a wide range of environmental services from testing and reporting on potentially unsafe or hazardous conditions (asbestos, lead paint, indoor air quality/mold, soil…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBridgewater, NJ, United StatesHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“Summit is a trusted leader in environmental industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchKitchener, ON, CanadaHQ recorded Nov 6, 202651-20072 contacts →

Exact match

“Water Services and Technologies is a provider of leading-edge consulting services and technologies related to groundwater and its interaction with the environment, water resources…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchPortland, OR, United StatesHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“GSI Water Solutions, Inc, is a specialized groundwater, environmental, and water resources consulting firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,134 groundwater contamination specialists worldwide

See the full list, filter by size, metro and specialty, and access 4,444 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Groundwater contamination specialists worldwide at a glance

As of Nov 6, 2026
36.1%Verified-email coverage
10.8Average contacts per company
1-10Median size (employees)
1.5%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
614
11-50
409
51-200
73
201-500
12
1,001-5,000
3
5,001-10,000
1
10001+
2

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 groundwater contamination specialists are linked below.
What qualifies
Company records worldwide whose business descriptions match “groundwater contamination specialists” 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 4,444 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.

Groundwater contamination specialists by location

8 lists · largest first

Every Groundwater contamination specialists 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 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 “groundwater contamination specialists”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many groundwater contamination specialists are there worldwide?

RevenueBase identified 1,134 company matches for groundwater contamination specialists 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?

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

Which country has the most groundwater contamination specialists?

The United States leads with 493 companies, followed by Canada (77) and Germany (61). Every groundwater contamination specialists list by country and city is linked on this page.

Which city has the most groundwater contamination specialists?

Sao Paulo leads with 17 company records, followed by New York (10) and Berlin (9).

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 4,444 professional contacts with verified work emails tracked across these 1,134 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.