Company lists · Data refreshed September 2026

Top 25 Groundwater treatment companies worldwide

Name: Groundwater treatment companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 2,966 companies tracked

RevenueBase identified 2,966 groundwater treatment companies worldwide as of September 2026 and tracks 27,932 professional contacts across them, including 6,794 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers groundwater treatment 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 20, 2026. Country and city lists for groundwater treatment 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 20, 2026 86% judged on-target in blind review

2,966Companies

27,932Contacts tracked

6,794Verified emails

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The 25 largest groundwater treatment companies worldwide

Ranked by team size

Top 25 of 2,966 groundwater treatment companies worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to groundwater treatment 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	Trojan Technologies	Partial evidence	London, ON, CanadaHQ checked Sep 20, 2026	501-1,000	716 contacts →
	Partial evidence “Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.” Source: RevenueBase Database · checked Sep 20, 2026
2	UCC Environmental	Partial evidence	Waukegan, IL, United StatesHQ checked Sep 20, 2026	201-500	389 contacts →
	Partial evidence “UCC Environmental (UCC) is a global leader in environmental solutions for solids handling, wastewater treatment and pollution control technologies in power generation and other…” Source: RevenueBase Database · checked Sep 20, 2026
3	Meco Mechanical Equipment Company, INC	Indirect evidence	Mandeville, LA, JamaicaHQ checked Sep 20, 2026	201-500	290 contacts →
	Indirect evidence “For over 96 years, MECO has been a world leader in designing and constructing engineered solutions for water purification.” Source: RevenueBase Database · checked Sep 20, 2026
4	Enviropacific	Indirect evidence	Macquarie Park, AustraliaHQ checked Sep 20, 2026	201-500	260 contacts →
	Indirect evidence “Enviropacific is committed to working towards creating safer environments and sustainable communities.” Source: RevenueBase Database · checked Sep 20, 2026
5	Esli Pollet Water Group	Indirect evidence	Antalya, TürkiyeHQ checked Sep 20, 2026	201-500	221 contacts →
	Indirect evidence “Esli PWG Ltd.” Source: RevenueBase Database · checked Sep 20, 2026
6	BOS Solutions	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	201-500	196 contacts →
	Partial evidence “BOS Solutions (BOS) is a full service provider of solutions for drilling fluids treatment and recovery.” Source: RevenueBase Database · checked Sep 20, 2026
7	Fluence Corporation	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 20, 2026	201-500	195 contacts →
	Partial evidence “Formed in 2017 following the consolidation of independent water treatment solution providers Emefcy and RWL Water, Fluence Corporation was established with the vision of becoming…” Source: RevenueBase Database · checked Sep 20, 2026
8	Alkawther Industries Co. LTD	Partial evidence	Jeddah, Saudi ArabiaHQ checked Sep 20, 2026	201-500	193 contacts →
	Partial evidence “AlKawther was established in 1979 as the first water treatment equipment and services provider in Saudi Arabia.” Source: RevenueBase Database · checked Sep 20, 2026
9	BAY West LLC	Partial evidence	St. Paul, MN, United StatesHQ checked Sep 20, 2026	201-500	187 contacts →
	Partial 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 20, 2026
10	Newterra	Partial evidence	Coraopolis, PA, United StatesHQ checked Sep 20, 2026	201-500	185 contacts →
	Partial evidence “Newterra designs, engineers, manufactures, and services environmental, water and wastewater treatment solutions that assure great performance, superb reliability, and the highest…” Source: RevenueBase Database · checked Sep 20, 2026
11	BW Water	Indirect evidence	Singapore, United StatesHQ checked Sep 20, 2026	201-500	179 contacts →
	Indirect evidence “Together with our customers, BW Water, now part of De Nora Water Technologies, is committed to addressing the world's most critical water challenges.” Source: RevenueBase Database · checked Sep 20, 2026
12	Nafasi Water	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 20, 2026	201-500	175 contacts →
	Indirect evidence “Nafasi Water, formerly known as Aveng Water is a 100% black-owned leading water technology and water utility service company.” Source: RevenueBase Database · checked Sep 20, 2026
13	Cadagua, A Ferrovial Company	Partial evidence	Bilbao-bilbo, SpainHQ checked Sep 20, 2026	51-200	173 contacts →
	Partial evidence “We specialize in the design, construction, and operation of water treatment facilities.” Source: RevenueBase Database · checked Sep 20, 2026
14	Orenco Systems, INC	Indirect evidence	Sutherlin, OR, United StatesHQ checked Sep 20, 2026	201-500	170 contacts →
	Indirect evidence “Nobody wants to worry about whether their wastewater is contaminating nearby rivers, streams, and wells.” Source: RevenueBase Database · checked Sep 20, 2026
15	OVIVE	Partial evidence	Seclin, FranceHQ checked Sep 20, 2026	51-200	155 contacts →
	Partial evidence “Traitement des Eaux Industrielles et Lixiviats Location de Matériel et Prestations d'Exploitation Industry wastewater and Leachate treatment Equipment rental and operation…” Source: RevenueBase Database · checked Sep 20, 2026
16	Atlan Stormwater	Partial evidence	Sydney Olympic Park, AustraliaHQ checked Sep 20, 2026	201-500	147 contacts →
	Partial evidence “At Atlan Stormwater, we draw on more than 45 years’ experience in the design, testing and manufacture of water treatment systems that are utilised in over 45 countries.” Source: RevenueBase Database · checked Sep 20, 2026
17	Delmon Group	Indirect evidence	Dammam, Saudi ArabiaHQ checked Sep 20, 2026	501-1,000	141 contacts →
	Indirect evidence “DELMON CO.” Source: RevenueBase Database · checked Sep 20, 2026
18	Severn Trent Services	Indirect evidence	Coventry, United KingdomHQ checked Sep 20, 2026	1,001-5,000	137 contacts →
	Indirect evidence “Severn Trent Services offer a range of services to municipal and industrial clients, including the Ministry of Defence and the Coal Authority, for design, build and operation of…” Source: RevenueBase Database · checked Sep 20, 2026
19	Euroteck Environmental PVT LTD	Indirect evidence	Hyderabad, IndiaHQ checked Sep 20, 2026	201-500	133 contacts →
	Indirect evidence “Euroteck Environmental Pvt.” Source: RevenueBase Database · checked Sep 20, 2026
20	Ekopak Sustainable Water	Partial evidence	Deinze, BelgiumHQ checked Sep 20, 2026	201-500	125 contacts →
	Partial evidence “Ekopak provides innovative solutions for industrial water treatment and wastewater treatment.” Source: RevenueBase Database · checked Sep 20, 2026
21	EPA Engenharia DE Proteção Ambiental Ltda	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 20, 2026	51-200	120 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
22	WJ Groundwater Middle East	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 20, 2026	201-500	116 contacts →
	Indirect evidence “Part of WJ Group, WJ Middle East leads the field in design, installation, and maintenance of dewatering systems for construction sites.” Source: RevenueBase Database · checked Sep 20, 2026
23	USP Technologies	Partial evidence	Glen Allen, VA, United StatesHQ checked Sep 20, 2026	51-200	110 contacts →
	Partial evidence “USP Technologies provides performance-driven, full-service environmental treatment programs to help purify water, wastewater, soil and air.” Source: RevenueBase Database · checked Sep 20, 2026
24	Ground Water Treatment & Technology, LLC	Indirect evidence	Wharton, NJ, United StatesHQ checked Sep 20, 2026	51-200	106 contacts →
	Indirect evidence “GWTT is one of the only U.S.” Source: RevenueBase Database · checked Sep 20, 2026
25	Milestone Environmental Contracting INC	Indirect evidence	Langley, BC, CanadaHQ checked Sep 20, 2026	51-200	95 contacts →
	Indirect evidence “No other environmental contractor in Canada can claim the same level of engineering and project-management expertise as Milestone.” Source: RevenueBase Database · checked Sep 20, 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: groundwater treatment 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 groundwater treatment companies.
Partial evidence: Its own public description names part of groundwater treatment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name groundwater treatment 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 2,966 groundwater treatment companies worldwide

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Groundwater treatment companies worldwide at a glance

As of Sep 20, 2026

24.3%Verified-email coverage

9.4Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · Sao Paulo

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

1,269

11-50

1,177

51-200

367

201-500

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 groundwater treatment 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 groundwater treatment companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “groundwater treatment 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 groundwater treatment 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 groundwater treatment 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, 6,794 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 20, 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.

Groundwater treatment companies by location

18 lists · largest first

Every Groundwater treatment companies 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 groundwater treatment 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 groundwater treatment companies are there worldwide?

RevenueBase identified 2,966 groundwater treatment 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?

Trojan Technologies, headquartered in London, tops this list with the largest team on record.

Which country has the most groundwater treatment companies?

The United States leads with 624 companies, followed by India (232) and Brazil (140). Every groundwater treatment companies list by country and city is linked on this page.

Which city has the most groundwater treatment companies?

Sao Paulo leads with 29 headquartered companies, followed by Chennai (21) and Pune (21).

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 6,794 verified decision-maker contacts tracked across these 2,966 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 20, 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.