Company lists · Data refreshed September 2026

Top 25 Industrial waste water treatment companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 6,506 companies tracked

RevenueBase identified 6,506 industrial waste water treatment companies worldwide as of September 2026 and tracks 111,327 professional contacts across them, including 26,924 with verified work emails and 0 with mobile numbers. The United States is the largest market and Pune the largest hub.

This list covers industrial waste water 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 15, 2026. Country and city lists for industrial waste water 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 15, 2026 86% judged on-target in blind review

6,506Companies

111,327Contacts tracked

26,924Verified emails

0Mobile numbers

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The 25 largest industrial waste water treatment companies worldwide

Ranked by team size

Top 25 of 6,506 industrial waste water treatment companies worldwide, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to industrial waste water 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	ION Exchange India LTD	Strong evidence	Mumbai, IndiaHQ checked Sep 15, 2026	1,001-5,000	3,810 contacts →
	Strong evidence “At Ion Exchange India, we bring you total environment solutions - water treatment, liquid waste treatment & recycle, air pollution control, solid & hazardous waste management and…” Source: RevenueBase Database · checked Sep 15, 2026
2	Veolia Australia & NEW Zealand	Strong evidence	Pyrmont, AustraliaHQ checked Sep 15, 2026	5,001-10,000	2,476 contacts →
	Strong 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 15, 2026
3	VA Tech Wabag LTD	Partial evidence	Wabag House, IndiaHQ checked Sep 15, 2026	1,001-5,000	2,375 contacts →
	Partial evidence “WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.” Source: RevenueBase Database · checked Sep 15, 2026
4	MPW Industrial Services	Strong evidence	Hebron, OH, PalestineHQ checked Sep 15, 2026	1,001-5,000	1,485 contacts →
	Strong evidence “As the leading provider of integrated, technology-based industrial cleaning, water purification, facility management, and total waste services in North America, MPW assists in…” Source: RevenueBase Database · checked Sep 15, 2026
5	Chemtreat	Partial evidence	Glen Allen, VA, United StatesHQ checked Sep 15, 2026	1,001-5,000	1,404 contacts →
	Partial evidence “At ChemTreat, we understand that water is a vital resource for our planet.” Source: RevenueBase Database · checked Sep 15, 2026
6	Clean Earth	Indirect evidence	King Of Prussia, PA, United StatesHQ checked Sep 15, 2026	1,001-5,000	1,275 contacts →
	Indirect evidence “Veolia has completed the acquisition of Clean Earth, bringing together two organizations with a shared commitment to environmental stewardship, safety and operational excellence.” Source: RevenueBase Database · checked Sep 15, 2026
7	Volvo Eicher Commerical Vehical Limited	Strong evidence	Dhar, IndiaHQ checked Sep 15, 2026	n/a	1,196 contacts →
	Strong evidence “Volvo Eicher Commerical Vehical Limited Service Provider of waste water recycling systems, drinking water plant & industrial water treatment in Indore, Madhya Pradesh.” Source: RevenueBase Database · checked Sep 15, 2026
8	Aquatech	Partial evidence	Canonsburg, PA, United StatesHQ checked Sep 15, 2026	501-1,000	903 contacts →
	Partial evidence “Aquatech enables the world's most recognized companies to solve complex challenges in water reuse, desalination, minimal and zero liquid discharge, and critical minerals…” Source: RevenueBase Database · checked Sep 15, 2026
9	Crystal Clean	Indirect evidence	Hoffman Estates, IL, United StatesHQ checked Sep 15, 2026	1,001-5,000	899 contacts →
	Indirect evidence “Crystal Clean is a national leader in the environmental services market, providing the smart alternative.” Source: RevenueBase Database · checked Sep 15, 2026
10	Chem-Aqua, INC	Indirect evidence	Wilmington, DE, United StatesHQ checked Sep 15, 2026	10001+	864 contacts →
	Indirect evidence “Chem-Aqua is a unique combination of knowledge, experience and stability.” Source: RevenueBase Database · checked Sep 15, 2026
11	OVIVO	Strong evidence	Montreal, QC, CanadaHQ checked Sep 15, 2026	501-1,000	829 contacts →
	Strong evidence “Ovivo is a powerful global brand, uniting world-renowned trademarks and a highly specialized team of 700 water treatment experts operating across the globe.” Source: RevenueBase Database · checked Sep 15, 2026
12	Gradiant	Partial evidence	Woburn, MA, United StatesHQ checked Sep 15, 2026	1,001-5,000	813 contacts →
	Partial evidence “Gradiant is a Different Kind of Water Company.” Source: RevenueBase Database · checked Sep 15, 2026
13	Trojan Technologies	Strong evidence	London, ON, CanadaHQ checked Sep 15, 2026	501-1,000	716 contacts →
	Strong evidence “Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.” Source: RevenueBase Database · checked Sep 15, 2026
14	Promotora Ambiental S.A.B. DE C.V	Partial evidence	Santa María, MexicoHQ checked Sep 15, 2026	5,001-10,000	677 contacts →
	Partial 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 15, 2026
15	Grupo Bauminas	Indirect evidence	Cataguazes, BrazilHQ checked Sep 15, 2026	1,001-5,000	650 contacts →
	Indirect evidence “Sobre a BAUMINAS Fundada há mais de 60 anos, a BAUMINAS é uma empresa orgulhosamente nacional, com ampla experiência na fabricação de produtos para o tratamento de águas e tem…” Source: RevenueBase Database · checked Sep 15, 2026
16	Cetrel	Partial evidence	Camaçari, BrazilHQ checked Sep 15, 2026	1,001-5,000	611 contacts →
	Partial evidence “Cetrel was formely created as an environmental protection company 40 years ago, to treat efluents and solid residues of more than 70 industries of the Camaçari Industrial Complex…” Source: RevenueBase Database · checked Sep 15, 2026
17	Westech Engineering	Strong evidence	Salt Lake City, UT, United StatesHQ checked Sep 15, 2026	501-1,000	554 contacts →
	Strong evidence “WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.” Source: RevenueBase Database · checked Sep 15, 2026
18	Rochem Separation Systems India Pvt. LTD	Strong evidence	Mumbai, IndiaHQ checked Sep 15, 2026	1,001-5,000	536 contacts →
	Strong evidence “We as, Rochem Separation Systems offer 100% water reuse solutions to treat industrial wastewater since 1992.” Source: RevenueBase Database · checked Sep 15, 2026
19	RSE	Partial evidence	Inverness Highlands, United KingdomHQ checked Sep 15, 2026	501-1,000	498 contacts →
	Partial evidence “RSE is a trusted clean water technology company, developing market leading products and solutions for purifying drinking water, recycling wastewater and cleaning water in…” Source: RevenueBase Database · checked Sep 15, 2026
20	Evergreen North America Industrial Services	Partial evidence	La Porte, TX, United StatesHQ checked Sep 15, 2026	1,001-5,000	468 contacts →
	Partial evidence “Evergreen North America Industrial Services offers a comprehensive range of Industrial Services for oil refineries, petrochemical plants, power generation plants, manufacturing…” Source: RevenueBase Database · checked Sep 15, 2026
21	Clean Harbors India	Indirect evidence	Hyderabad, IndiaHQ checked Sep 15, 2026	1,001-5,000	450 contacts →
	Indirect evidence “Clean Harbors India has been strategically established as the Global Capability Center (GCC) to serve our parent company.” Source: RevenueBase Database · checked Sep 15, 2026
22	Liquid Environmental Solutions	Indirect evidence	Irving, TX, United StatesHQ checked Sep 15, 2026	501-1,000	427 contacts →
	Indirect evidence “Liquid Environmental Solutions - the largest, exclusively non-hazardous US wastewater collection and disposal company, is known for innovation and leadership in protecting…” Source: RevenueBase Database · checked Sep 15, 2026
23	Waterleau	Partial evidence	Wespelaar, FranceHQ checked Sep 15, 2026	201-500	411 contacts →
	Partial evidence “Waterleau is your partner in sustainable water stewardship.” Source: RevenueBase Database · checked Sep 15, 2026
24	UCC Environmental	Partial evidence	Waukegan, IL, United StatesHQ checked Sep 15, 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 15, 2026
25	Gratt Indústria E Tecnologia Ambiental Ltda	Partial evidence	Capinzal, BrazilHQ checked Sep 15, 2026	1,001-5,000	376 contacts →
	Partial evidence “Desenvolvemos soluções industriais completas para separação de materiais, recuperação de matérias-primas, processamento de subprodutos e tratamento ambiental, apoiando empresas na…” Source: RevenueBase Database · checked Sep 15, 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: industrial waste water 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 industrial waste water treatment companies.
Partial evidence: Its own public description names part of industrial waste water treatment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial waste water 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 6,506 industrial waste water treatment companies worldwide

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Industrial waste water treatment companies worldwide at a glance

As of Sep 15, 2026

24.2%Verified-email coverage

17.1Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Pune

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

2,455

11-50

2,579

51-200

1,024

201-500

253

501-1,000

1,001-5,000

5,001-10,000

10001+

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 industrial waste water 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: 35 countries, largest first: the United States, India, Brazil, Italy, Germany, the United Kingdom, Spain, Türkiye, Mexico, France and 25 more. Country and city lists for industrial waste water treatment companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “industrial waste water 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 industrial waste water 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 industrial waste water 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, 26,924 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 15, 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.

Industrial waste water treatment companies by location

40 lists · largest first

Every Industrial waste water treatment 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 industrial waste water 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 industrial waste water treatment companies are there worldwide?

RevenueBase identified 6,506 industrial waste water 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?

ION Exchange India LTD, headquartered in Mumbai, tops this list with the largest team on record.

Which country has the most industrial waste water treatment companies?

The United States leads with 1,258 companies, followed by India (1,168) and Brazil (484). Every industrial waste water treatment companies list by country and city is linked on this page.

Which city has the most industrial waste water treatment companies?

Pune leads with 111 headquartered companies, followed by Ahmedabad (88) and Chennai (81).

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 26,924 verified decision-maker contacts tracked across these 6,506 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 15, 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.