Company lists · Data refreshed September 2026

Top 25 Reverse osmosis water purification system manufacturers worldwide

Name: Reverse osmosis water purification system manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 5,797 companies tracked

RevenueBase identified 5,797 reverse osmosis water purification system manufacturers worldwide as of September 2026 and tracks 63,913 professional contacts across them, including 9,982 with verified work emails. The United States is the largest market and Chennai the largest hub.

This list covers reverse osmosis water purification system 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 30, 2026. Country and city lists for reverse osmosis water purification system 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 30, 2026 86% judged on-target in blind review

5,797Companies

63,913Contacts tracked

9,982Verified emails

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The 25 largest reverse osmosis water purification system manufacturers worldwide

Ranked by team size

Top 25 of 5,797 reverse osmosis water purification system manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to reverse osmosis water purification system 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	Eureka Forbes LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 30, 2026	1,001-5,000	8,241 contacts →
	Partial evidence “It dates back to 1982, when health ambassadors from Eureka Forbes, with a new concept of living in a clean environment and drinking water in its purest form knocked on your door.” Source: RevenueBase Database · checked Sep 30, 2026
2	Kent RO Systems LTD	Indirect evidence	Noida, IndiaHQ checked Sep 30, 2026	1,001-5,000	3,189 contacts →
	Indirect evidence “We are a healthcare products company with the mission to make world a healthier place.” Source: RevenueBase Database · checked Sep 30, 2026
3	Volvo Eicher Commerical Vehical Limited	Strong evidence	Dhar, IndiaHQ checked Sep 30, 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 30, 2026
4	Trojan Technologies	Partial evidence	London, ON, CanadaHQ checked Sep 30, 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 30, 2026
5	Culligan France	Indirect evidence	Versailles, FranceHQ checked Sep 30, 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 30, 2026
6	BWT France	Partial evidence	Saint - Denis, FranceHQ checked Sep 30, 2026	501-1,000	567 contacts →
	Partial 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 30, 2026
7	Westech Engineering	Strong evidence	Salt Lake City, UT, United StatesHQ checked Sep 30, 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 30, 2026
8	Culligan Italiana S.P.A	Indirect evidence	Bologna, ItalyHQ checked Sep 30, 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 30, 2026
9	Eden Springs	Partial evidence	Barcelona, SpainHQ checked Sep 30, 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 30, 2026
10	Kinetico Incorporated	Strong evidence	Newbury, OH, United KingdomHQ checked Sep 30, 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 30, 2026
11	Waternet SU Hizmetleri	Indirect evidence	Eyup, TürkiyeHQ checked Sep 30, 2026	51-200	371 contacts →
	Indirect evidence “Waternet Su Hizmetleri A.Ş, 2012 yılında sağlıklı yaşamın temel gerekliliklerinden biri olan sağlıklı suyu en güvenilir ve kolay şekilde tüketici ile buluşturmak amacıyla…” Source: RevenueBase Database · checked Sep 30, 2026
12	Strauss Water Ltd. שטראוס מים	Partial evidence	Or Yehuda, IsraelHQ checked Sep 30, 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 30, 2026
13	CN Water	Strong evidence	Navi Mumbai, IndiaHQ checked Sep 30, 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 30, 2026
14	Meco Mechanical Equipment Company, INC	Strong evidence	Mandeville, LA, JamaicaHQ checked Sep 30, 2026	201-500	290 contacts →
	Strong 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 30, 2026
15	Packard Culligan Water	Partial evidence	Minnetonka, MN, United StatesHQ checked Sep 30, 2026	501-1,000	272 contacts →
	Partial evidence “Packard Culligan Water is a family-owned company with values based on relationships, unity, listening, and leading locally.” Source: RevenueBase Database · checked Sep 30, 2026
16	Culligan By Waterco	Strong evidence	Lombard, IL, United StatesHQ checked Sep 30, 2026	501-1,000	265 contacts →
	Strong evidence “Culligan has over 80 years of experience in the design and distribution of water treatment systems for residential, commercial and industrial applications.” Source: RevenueBase Database · checked Sep 30, 2026
17	Amiad Water Systems LTD	Strong evidence	Kibbutz Amiad, IsraelHQ checked Sep 30, 2026	501-1,000	259 contacts →
	Strong evidence “For 6 decades, Amiad Water Systems has devoted its passion to developing technologically advanced water filtration systems for the irrigation and industrial segments.” Source: RevenueBase Database · checked Sep 30, 2026
18	Micron	Partial evidence	Mouscron, BelgiumHQ checked Sep 30, 2026	n/a	246 contacts →
	Partial evidence “Micron, part of the Pollet Water Group (PWG), offers domestic and industrial water treatment solutions throughout Europe.” Source: RevenueBase Database · checked Sep 30, 2026
19	Culligan UK	Partial evidence	Dereham, United KingdomHQ checked Sep 30, 2026	501-1,000	231 contacts →
	Partial evidence “Culligan UK delivers innovative, high-quality water solutions to homes and businesses across the United Kingdom.” Source: RevenueBase Database · checked Sep 30, 2026
20	Coway Corp	Partial evidence	Seoul, South KoreaHQ checked Sep 30, 2026	5,001-10,000	221 contacts →
	Partial evidence “We always make a healthy life with new ideas Now more than half the households of Korea and the people around the world always drink clean water, enjoy a healthy and pleasant life…” Source: RevenueBase Database · checked Sep 30, 2026
21	Esli Pollet Water Group	Indirect evidence	Antalya, TürkiyeHQ checked Sep 30, 2026	201-500	221 contacts →
	Indirect evidence “Esli PWG Ltd.” Source: RevenueBase Database · checked Sep 30, 2026
22	Naqi نقي	Partial evidence	Riyadh, Saudi ArabiaHQ checked Sep 30, 2026	501-1,000	192 contacts →
	Partial evidence “Purify your water with NAQI's water purifiers” Source: RevenueBase Database · checked Sep 30, 2026
23	MAT Filtration Technologies	Strong evidence	Güzelbahçe, TürkiyeHQ checked Sep 30, 2026	501-1,000	191 contacts →
	Strong evidence “MAT FILTRATION TECHNOLOGIES is a design and manufacturing leader of specialty water treatment equipment for industrial & municipal applications, Recirculating Aquaculture Systems…” Source: RevenueBase Database · checked Sep 30, 2026
24	BW Water	Partial evidence	Singapore, United StatesHQ checked Sep 30, 2026	201-500	179 contacts →
	Partial 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 30, 2026
25	Watercare Innovations	Strong evidence	Randfontein, South AfricaHQ checked Sep 30, 2026	201-500	165 contacts →
	Strong evidence “Watercare Innovations is a water purification supplier, delivering tailor-made solutions in the fields of water treatment chemicals, and engineered plants such as potable and…” Source: RevenueBase Database · checked Sep 30, 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: reverse osmosis water purification system 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 reverse osmosis water purification system manufacturers.
Partial evidence: Its own public description names part of reverse osmosis water purification system manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name reverse osmosis water purification system 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 5,797 reverse osmosis water purification system manufacturers worldwide

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Reverse osmosis water purification system manufacturers worldwide at a glance

As of Sep 30, 2026

15.6%Verified-email coverage

11.0Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Chennai

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

2,493

11-50

2,055

51-200

847

201-500

224

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 reverse osmosis water purification system 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: Every country. Country and city lists for reverse osmosis water purification system manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “reverse osmosis water purification system 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 reverse osmosis water purification system 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 reverse osmosis water purification system 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, 9,982 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 30, 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.

Reverse osmosis water purification system manufacturers by location

20 lists · largest first

Every Reverse osmosis water purification system manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Reverse osmosis water purification system manufacturers based in Mumbai, India46

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 reverse osmosis water purification system 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 reverse osmosis water purification system manufacturers are there worldwide?

RevenueBase identified 5,797 reverse osmosis water purification system 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?

Eureka Forbes LTD, headquartered in Lower Parel Mumbai Maharashtra, tops this list with the largest team on record.

Which country has the most reverse osmosis water purification system manufacturers?

The United States leads with 1,118 companies, followed by India (1,049) and Italy (230). Every reverse osmosis water purification system manufacturers list by country and city is linked on this page.

Which city has the most reverse osmosis water purification system manufacturers?

Chennai leads with 74 headquartered companies, followed by Delhi (74) and Ahmedabad (72).

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 9,982 verified decision-maker contacts tracked across these 5,797 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 30, 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.