Company lists · Data refreshed November 2026

Top 25 Reverse osmosis desalination system suppliers worldwide

RevenueBase identified 3,540 company matches for reverse osmosis desalination system suppliers worldwide as of November 2026 and tracks 41,138 professional contacts across them, including 7,681 with verified work emails. India is the largest market and Chennai the largest hub.

This list covers company matches for reverse osmosis desalination system suppliers 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 1, 2026. Country and city lists for reverse osmosis desalination system suppliers 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 1, 2026 How this list was built
3,540Companies
41,138Contacts tracked
7,681Verified emails
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The 25 largest reverse osmosis desalination system suppliers worldwide

Ranked by team size
Top 25 of 3,540 company matches for reverse osmosis desalination system suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 1, 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 matchWabag House, IndiaHQ recorded Nov 1, 20261,001-5,0002,412 contacts →

Exact match

“WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
2Exact matchCanonsburg, PA, United StatesHQ recorded Nov 1, 2026501-1,000968 contacts →

Exact match

“Aquatech enables the world's most recognized companies to solve complex challenges in water reuse, desalination, minimal and zero liquid discharge, and critical minerals…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
3Exact matchLondon, ON, CanadaHQ recorded Nov 1, 2026501-1,000737 contacts →

Exact match

“Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
4Exact matchKadima, IsraelHQ recorded Nov 1, 2026501-1,000626 contacts →

Exact match

“A world leader in water treatment solutions, IDE specializes in the development, engineering, construction and operation of enhanced desalination and industrial water treatment…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
5Exact matchSalt Lake City, UT, United StatesHQ recorded Nov 1, 2026501-1,000577 contacts →

Exact match

“WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
6Exact matchSaint - Denis, FranceHQ recorded Nov 1, 2026501-1,000576 contacts →

Exact match

“BWT France is one of the largest subsidiaries of Austrian group Best Water Technology ( BWT), the European leader in water treatment.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
7Exact matchSao Paulo, BrazilHQ recorded Nov 1, 20261,001-5,000505 contacts →

Exact match

“A GS Inima Brasil é uma das maiores e mais respeitadas companhias privadas de saneamento do país, oferecendo soluções inovadoras e integradas.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
8Exact matchBarcelona, SpainHQ recorded Nov 1, 20261,001-5,000500 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
9Exact matchBologna, ItalyHQ recorded Nov 1, 2026201-500477 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
10Exact matchSingaporeHQ recorded Nov 1, 20261,001-5,000423 contacts →

Exact match

“Hyflux is a global leader in environmental solutions, focusing on the areas of water and energy.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
11Exact matchNewbury, OH, United KingdomHQ recorded Nov 1, 2026201-500392 contacts →

Exact match

“Founded in 1970, Kinetico pioneered the development of non-electric, fully automatic water treatment systems.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
12Exact matchGenoa, ItalyHQ recorded Nov 1, 202651-200378 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
13Exact matchFort Lauderdale, FL, United StatesHQ recorded Nov 1, 202651-200356 contacts →

Exact match

“Parkson Corporation is a supplier of innovative, cost effective solutions for potable water, process water, and industrial and municipal wastewater treatment.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
14Exact matchNavi Mumbai, IndiaHQ recorded Nov 1, 2026201-500343 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
15Exact matchMandeville, LA, JamaicaHQ recorded Nov 1, 2026201-500290 contacts →

Exact match

“For over 96 years, MECO has been a world leader in designing and constructing engineered solutions for water purification.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
16Exact matchLombard, IL, United StatesHQ recorded Nov 1, 2026501-1,000277 contacts →

Exact match

“Culligan has over 80 years of experience in the design and distribution of water treatment systems for residential, commercial and industrial applications.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
17Exact matchMouscron, BelgiumHQ recorded Nov 1, 2026n/a266 contacts →

Exact match

“Micron, part of the Pollet Water Group (PWG), offers domestic and industrial water treatment solutions throughout Europe.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
18Exact matchDereham, United KingdomHQ recorded Nov 1, 2026501-1,000243 contacts →

Exact match

“Culligan UK delivers innovative, high-quality water solutions to homes and businesses across the United Kingdom.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
19Exact matchAntalya, TürkiyeHQ recorded Nov 1, 2026201-500241 contacts →

Exact match

“Esli PWG Ltd.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
20Exact matchGüzelbahçe, TürkiyeHQ recorded Nov 1, 2026501-1,000210 contacts →

Exact match

“MAT FILTRATION TECHNOLOGIES is a design and manufacturing leader of specialty water treatment equipment for industrial & municipal applications, Recirculating Aquaculture Systems…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
21Exact matchMinneapolis, MN, United StatesHQ recorded Nov 1, 2026201-500191 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
22Exact matchJohannesburg, South AfricaHQ recorded Nov 1, 2026201-500185 contacts →

Exact match

“Nafasi Water, formerly known as Aveng Water is a 100% black-owned leading water technology and water utility service company.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
23Exact matchTomares, SpainHQ recorded Nov 1, 2026501-1,000179 contacts →

Exact match

“Culligan es conocida por la alta calidad en el tratamiento de piscinas, por su implantación de descalcificadores y equipos de ósmosis inversa en el mercado doméstico, y por la…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
24Exact matchRandfontein, South AfricaHQ recorded Nov 1, 2026201-500174 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
25Exact matchIrpin, UkraineHQ recorded Nov 1, 2026201-500168 contacts →

Exact match

“Welcome to Ecosoft – a water engineering company.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase

Showing 25 of 3,540 reverse osmosis desalination system suppliers worldwide

See the full list, filter by size, metro and specialty, and access 7,681 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Reverse osmosis desalination system suppliers worldwide at a glance

As of Nov 1, 2026
18.7%Verified-email coverage
11.6Average contacts per company
11-50Median size (employees)
1.5%Largest-city concentration · Chennai
Nov 1, 2026Page data refreshed

Companies by employee count

1-10
1,409
11-50
1,327
51-200
546
201-500
159
501-1,000
42
1,001-5,000
20
5,001-10,000
4
10001+
5

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 reverse osmosis desalination system suppliers are linked below.
What qualifies
Company records worldwide whose business descriptions match “reverse osmosis desalination system suppliers” 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 7,681 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 1, 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.

Reverse osmosis desalination system suppliers by location

17 lists · largest first

Every Reverse osmosis desalination system suppliers 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 “reverse osmosis desalination system suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many reverse osmosis desalination system suppliers are there worldwide?

RevenueBase identified 3,540 company matches for reverse osmosis desalination system suppliers 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?

VA Tech Wabag LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most reverse osmosis desalination system suppliers?

India leads with 718 companies, followed by the United States (536) and Italy (132). Every reverse osmosis desalination system suppliers list by country and city is linked on this page.

Which city has the most reverse osmosis desalination system suppliers?

Chennai leads with 54 company records, followed by Ahmedabad (52) and Pune (50).

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 7,681 professional contacts with verified work emails tracked across these 3,540 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 1, 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.