Company lists · Data refreshed September 2026

Top 25 Water treatment systems manufacturers worldwide

Name: Water treatment systems manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 7,428 companies tracked

RevenueBase identified 7,428 water treatment systems manufacturers worldwide as of September 2026 and tracks 92,690 professional contacts across them, including 22,677 with verified work emails and 0 with mobile numbers. The United States is the largest market and Pune the largest hub.

This list covers water treatment systems manufacturers 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 water treatment systems manufacturers 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

7,428Companies

92,690Contacts tracked

22,677Verified emails

0Mobile numbers

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The 25 largest water treatment systems manufacturers worldwide

Ranked by team size

Top 25 of 7,428 water treatment systems manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to water treatment systems manufacturers: 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	VA Tech Wabag LTD	Partial evidence	Wabag House, IndiaHQ checked Sep 19, 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 19, 2026
2	Volvo Eicher Commerical Vehical Limited	Strong evidence	Dhar, IndiaHQ checked Sep 19, 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 19, 2026
3	Aquatech	Partial evidence	Canonsburg, PA, United StatesHQ checked Sep 19, 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 19, 2026
4	Chem-Aqua, INC	Indirect evidence	Wilmington, DE, United StatesHQ checked Sep 19, 2026	10001+	864 contacts →
	Indirect evidence “Chem-Aqua is a unique combination of knowledge, experience and stability.” Source: RevenueBase Database · checked Sep 19, 2026
5	OVIVO	Strong evidence	Montreal, QC, CanadaHQ checked Sep 19, 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 19, 2026
6	Gradiant	Partial evidence	Woburn, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	813 contacts →
	Partial evidence “Gradiant is a Different Kind of Water Company.” Source: RevenueBase Database · checked Sep 19, 2026
7	Trojan Technologies	Strong evidence	London, ON, CanadaHQ checked Sep 19, 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 19, 2026
8	Grupo Bauminas	Indirect evidence	Cataguazes, BrazilHQ checked Sep 19, 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 19, 2026
9	Culligan France	Indirect evidence	Versailles, FranceHQ checked Sep 19, 2026	1,001-5,000	607 contacts →
	Indirect evidence “Spécialiste du traitement de l’eau depuis plus de 80 ans, Culligan apporte chaque jour une eau de qualité aux particuliers, aux entreprises et aux collectivités.” Source: RevenueBase Database · checked Sep 19, 2026
10	BWT France	Strong evidence	Saint - Denis, FranceHQ checked Sep 19, 2026	501-1,000	567 contacts →
	Strong evidence “BWT France is one of the largest subsidiaries of Austrian group Best Water Technology ( BWT), the European leader in water treatment.” Source: RevenueBase Database · checked Sep 19, 2026
11	Westech Engineering	Strong evidence	Salt Lake City, UT, United StatesHQ checked Sep 19, 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 19, 2026
12	RSE	Partial evidence	Inverness Highlands, United KingdomHQ checked Sep 19, 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 19, 2026
13	Culligan Italiana S.P.A	Indirect evidence	Bologna, ItalyHQ checked Sep 19, 2026	201-500	489 contacts →
	Indirect evidence “Culligan Italiana è in grado di offrire la soluzione ideale per ogni tipologia di trattamento acqua: piccoli impianti ad uso domestico, erogatori d'acqua per uffici e ristoranti…” Source: RevenueBase Database · checked Sep 19, 2026
14	Eden Springs	Partial evidence	Barcelona, SpainHQ checked Sep 19, 2026	1,001-5,000	488 contacts →
	Partial evidence “Eden, a proud part of the Culligan family, provides instant access to cleaner, safer, and better-tasting water through our unparalleled expertise in sustainability, science, and…” Source: RevenueBase Database · checked Sep 19, 2026
15	Ecowater Systems LLC	Strong evidence	Woodbury, MN, United StatesHQ checked Sep 19, 2026	201-500	468 contacts →
	Strong evidence “Established in 1925, EcoWater Systems LLC is one of the world's largest manufacturers of residential water treatment systems.” Source: RevenueBase Database · checked Sep 19, 2026
16	Waterleau	Partial evidence	Wespelaar, FranceHQ checked Sep 19, 2026	201-500	411 contacts →
	Partial evidence “Waterleau is your partner in sustainable water stewardship.” Source: RevenueBase Database · checked Sep 19, 2026
17	Kinetico Incorporated	Strong evidence	Newbury, OH, United KingdomHQ checked Sep 19, 2026	201-500	374 contacts →
	Strong evidence “Founded in 1970, Kinetico pioneered the development of non-electric, fully automatic water treatment systems.” Source: RevenueBase Database · checked Sep 19, 2026
18	Fisia Italimpianti	Partial evidence	Genova, ItalyHQ checked Sep 19, 2026	51-200	362 contacts →
	Partial evidence “Fisia Italimpianti S.p.A, part of Webuild Group (the new group born in 2020 from Salini Impregilo), is a worldwide leader in the sustainable design and execution of water…” Source: RevenueBase Database · checked Sep 19, 2026
19	Proxa Water	Strong evidence	Woodmead, South AfricaHQ checked Sep 19, 2026	201-500	358 contacts →
	Strong evidence “Proxa is a leading water treatment specialist whose integrated services cover the entire water cycle and span numerous global industries, including: mining, food & beverage…” Source: RevenueBase Database · checked Sep 19, 2026
20	Strauss Water Ltd. שטראוס מים	Partial evidence	Or Yehuda, IsraelHQ checked Sep 19, 2026	1,001-5,000	353 contacts →
	Partial evidence “In Strauss Water, we are improving people's quality of life by creating the best water experience!” Source: RevenueBase Database · checked Sep 19, 2026
21	CN Water	Strong evidence	Navi Mumbai, IndiaHQ checked Sep 19, 2026	201-500	335 contacts →
	Strong evidence “CN Water is the leading provider of next-generation water technology products and water system lifecycle solutions to meet the unique needs of the Indian pharmaceutical, life…” Source: RevenueBase Database · checked Sep 19, 2026
22	Vasu Chemicals LLP	Strong evidence	Mumbai, IndiaHQ checked Sep 19, 2026	501-1,000	330 contacts →
	Strong evidence “Vasu Chemicals LLP is India's leading industrial water treatment solutions provider.” Source: RevenueBase Database · checked Sep 19, 2026
23	Enviro Infra Engineers LTD	Partial evidence	Delhi, IndiaHQ checked Sep 19, 2026	501-1,000	323 contacts →
	Partial evidence “Since 2009, Enviro has combined engineering excellence with a commitment to sustainability in water and wastewater solutions across India." Enviro Infra Engineers Limited stands…” Source: RevenueBase Database · checked Sep 19, 2026
24	Xylem Water Solutions UK & Ireland	Partial evidence	Nottingham, United KingdomHQ checked Sep 19, 2026	501-1,000	319 contacts →
	Partial evidence “Xylem is a leading global water solutions company dedicated to advancing sustainable impact and empowering the people who make water work every day.” Source: RevenueBase Database · checked Sep 19, 2026
25	Parkson Corporation	Strong evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 19, 2026	51-200	317 contacts →
	Strong evidence “Parkson Corporation is a supplier of innovative, cost effective solutions for potable water, process water, and industrial and municipal wastewater treatment.” Source: RevenueBase Database · checked Sep 19, 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: water treatment systems manufacturers. 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 water treatment systems manufacturers.
Partial evidence: Its own public description names part of water treatment systems manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water treatment systems manufacturers. 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 7,428 water treatment systems manufacturers worldwide

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Water treatment systems manufacturers worldwide at a glance

As of Sep 19, 2026

24.5%Verified-email coverage

12.5Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · Pune

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

3,012

11-50

2,835

51-200

1,119

201-500

254

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 water treatment systems manufacturers, 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, Italy, Brazil, Spain, Germany, France, the United Kingdom, Türkiye, Canada and 25 more. Country and city lists for water treatment systems manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “water treatment systems manufacturers”. 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 water treatment systems manufacturers), 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 water treatment systems manufacturers, 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, 22,677 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.

Water treatment systems manufacturers by location

40 lists · largest first

Every Water treatment systems manufacturers 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 water treatment systems manufacturers, 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 water treatment systems manufacturers are there worldwide?

RevenueBase identified 7,428 water treatment systems manufacturers 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?

VA Tech Wabag LTD, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most water treatment systems manufacturers?

The United States leads with 1,624 companies, followed by India (1,382) and Italy (447). Every water treatment systems manufacturers list by country and city is linked on this page.

Which city has the most water treatment systems manufacturers?

Pune leads with 115 headquartered companies, followed by Ahmedabad (113) and Chennai (98).

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 22,677 verified decision-maker contacts tracked across these 7,428 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.