Company lists · Data refreshed November 2026

Top 25 Reverse osmosis system engineers worldwide

RevenueBase identified 4,255 company matches for reverse osmosis system engineers worldwide as of November 2026 and tracks 47,203 professional contacts across them, including 8,825 with verified work emails. India is the largest market and Pune the largest hub.

This list covers company matches for reverse osmosis system engineers 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 6, 2026. Country and city lists for reverse osmosis system engineers 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 6, 2026 How this list was built
4,255Companies
47,203Contacts tracked
8,825Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest reverse osmosis system engineers worldwide

Ranked by team size
Top 25 of 4,255 company matches for reverse osmosis system engineers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 6, 20261,001-5,0002,635 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 6, 2026 · View company records in RevenueBase
2Exact matchCanonsburg, PA, United StatesHQ recorded Nov 6, 2026501-1,0001,006 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 6, 2026 · View company records in RevenueBase
3Exact matchKadima, IsraelHQ recorded Nov 6, 2026501-1,000660 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 6, 2026 · View company records in RevenueBase
4Exact matchSaint - Denis, FranceHQ recorded Nov 6, 2026501-1,000594 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 6, 2026 · View company records in RevenueBase
5Exact matchSalt Lake City, United StatesHQ recorded Nov 6, 2026501-1,000588 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 6, 2026 · View company records in RevenueBase
6Exact matchBologna, ItalyHQ recorded Nov 6, 2026201-500499 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 6, 2026 · View company records in RevenueBase
7Exact matchNewbury, OH, United KingdomHQ recorded Nov 6, 2026201-500403 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 6, 2026 · View company records in RevenueBase
8Exact matchGenoa, ItalyHQ recorded Nov 6, 202651-200386 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 6, 2026 · View company records in RevenueBase
9Exact matchNavi Mumbai, IndiaHQ recorded Nov 6, 2026201-500353 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 6, 2026 · View company records in RevenueBase
10Exact matchMandeville, JamaicaHQ recorded Nov 6, 2026201-500300 contacts →

Exact match

“For nearly 100 years, MECO has been a world leader in designing and constructing engineered solutions for water purification.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLombard, IL, United StatesHQ recorded Nov 6, 2026501-1,000279 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 6, 2026 · View company records in RevenueBase
12Exact matchMouscron, BelgiumHQ recorded Nov 6, 2026n/a272 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 6, 2026 · View company records in RevenueBase
13Exact matchAntalya, TürkiyeHQ recorded Nov 6, 2026201-500250 contacts →

Exact match

“Esli PWG Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchGüzelbahçe, TürkiyeHQ recorded Nov 6, 2026501-1,000221 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 6, 2026 · View company records in RevenueBase
15Exact matchCoraopolis, PA, United StatesHQ recorded Nov 6, 2026201-500195 contacts →

Exact match

“Newterra designs, engineers, manufactures, and services environmental, water and wastewater treatment solutions that assure great performance, superb reliability, and the highest…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBilbao-bilbo, SpainHQ recorded Nov 6, 202651-200194 contacts →

Exact match

“We specialize in the design, construction, and operation of water treatment facilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 2026201-500192 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 6, 2026 · View company records in RevenueBase
18Exact matchTomares, SpainHQ recorded Nov 6, 2026501-1,000186 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 6, 2026 · View company records in RevenueBase
19Exact matchRandfontein, South AfricaHQ recorded Nov 6, 2026201-500176 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 6, 2026 · View company records in RevenueBase
20Exact matchIrpin, UkraineHQ recorded Nov 6, 2026201-500172 contacts →

Exact match

“Welcome to Ecosoft – a water engineering company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSydney Olympic Park, AustraliaHQ recorded Nov 6, 2026201-500171 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchKnoxville, TN, United StatesHQ recorded Nov 6, 2026201-500166 contacts →

Exact match

“Aqua-Chem is the leader in providing Global Water Solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSingapore, United StatesHQ recorded Nov 6, 2026201-500165 contacts →

Exact match

“Together with our customers, BW Water, now part of De Nora Water Technologies, is committed to addressing the world's most critical water challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchRossdorf, GermanyHQ recorded Nov 6, 20261,001-5,000163 contacts →

Exact match

“EnviroChemie is a system provider for holistic industrial water management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHyderabad, IndiaHQ recorded Nov 6, 2026201-500134 contacts →

Exact match

“Euroteck Environmental Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 4,255 reverse osmosis system engineers worldwide

See the full list, filter by size, metro and specialty, and access 8,825 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Reverse osmosis system engineers worldwide at a glance

As of Nov 6, 2026
18.7%Verified-email coverage
11.1Average contacts per company
11-50Median size (employees)
1.6%Largest-city concentration · Pune
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,623
11-50
1,626
51-200
664
201-500
190
501-1,000
47
1,001-5,000
18
5,001-10,000
3
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 system engineers are linked below.
What qualifies
Company records worldwide whose business descriptions match “reverse osmosis system engineers” 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 8,825 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 6, 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 system engineers by location

20 lists · largest first

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

How many reverse osmosis system engineers are there worldwide?

RevenueBase identified 4,255 company matches for reverse osmosis system engineers 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 system engineers?

India leads with 914 companies, followed by the United States (605) and Italy (172). Every reverse osmosis system engineers list by country and city is linked on this page.

Which city has the most reverse osmosis system engineers?

Pune leads with 68 company records, followed by Chennai (64) and Ahmedabad (62).

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 8,825 professional contacts with verified work emails tracked across these 4,255 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 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 4,255 reverse osmosis system engineers worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.