Company lists · Data refreshed September 2026

Top 21 Reverse osmosis membrane manufacturers based in the United Kingdom

RevenueBase identified 43 company matches for reverse osmosis membrane manufacturers associated with the United Kingdom as of September 2026 and tracks 350 professional contacts across them, including 134 with verified work emails. London is the largest hub.

This list covers company matches for reverse osmosis membrane manufacturers associated with the United Kingdom, 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 September 30, 2026.

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 Sep 30, 2026 How this list was built
43Companies
350Contacts tracked
134Verified emails
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The 21 largest reverse osmosis membrane manufacturers based in the United Kingdom

Ranked by team size
Top 21 of 43 company matches for reverse osmosis membrane manufacturers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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 matchRochdale, United KingdomHQ recorded Sep 30, 202651-20080 contacts →

Exact match

“Salt Separation Services Limited is an independent water treatment company specialising in the design, manufacture, installation and commissioning of water treatment systems.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2Exact matchWolverhampton, United KingdomHQ recorded Sep 30, 202651-20040 contacts →

Exact match

“At Billi, we design and manufacture a range of energy efficient filtered water systems that offer our customers the very best in innovation, superior performance and reliability.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3Exact matchCastleford, United KingdomHQ recorded Sep 30, 202611-5021 contacts →

Exact match

“At Excel Water, we pride ourselves on our unwavering commitment to delivering exceptional water treatment and purification solutions tailored to the diverse needs of our clients.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4Exact matchWellingborough, United KingdomHQ recorded Sep 30, 202611-5011 contacts →

Exact match

“ADEPT Pure Water Limited are specialists in the design, manufacture, commission, installation and Service of Water Purification and Treatment Plant and equipment.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5Exact matchAylesbury, United KingdomHQ recorded Sep 30, 202611-5010 contacts →

Exact match

“Wycombe Water Ltd.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6Exact matchWells, United KingdomHQ recorded Sep 30, 202611-508 contacts →

Exact match

“We are expert design & build engineers in ultrafiltration, nanofiltration, UV-C and AOP water treatment, purification, and sanitisation systems integration, specialist maintenance…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7Exact matchYork, United KingdomHQ recorded Sep 30, 202611-507 contacts →

Exact match

“Modern Water is a pioneering and innovative technology company, specialising in membrane water treatment solutions and advanced monitoring products.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8Exact matchWitney, United KingdomHQ recorded Sep 30, 202611-506 contacts →

Exact match

“We began trading in 1996.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9Exact matchBristol, United KingdomHQ recorded Sep 30, 202651-2005 contacts →

Exact match

“Here at the Pure Water People we believe everyone should enjoy the health and well-being benefits of water as pure as nature intended and pride ourselves on bringing you the…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10Exact matchLichfield, United KingdomHQ recorded Sep 30, 20261-105 contacts →

Exact match

“Resin Products Limited is a leading supplier of high-quality ion exchange resins, RO membrane systems & products.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11Exact matchMelton Mowbray, United KingdomHQ recorded Sep 30, 202611-504 contacts →

Exact match

“Kirton design and build state-of-the-art solutions that help industrial, commercial and domestic clients use water safely, more efficiently and in compliance with ever increasing…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12Exact matchPaddington, United KingdomHQ recorded Sep 30, 202611-504 contacts →

Exact match

“The Hydrasyst Group specializes in advanced and modern membrane filtration technology for a range of high demanding commercial and industrial fluid purification applications.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13Exact matchHarlow, United KingdomHQ recorded Sep 30, 202651-2004 contacts →

Exact match

“We are proud of who we are, what we do and why we do it.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14Exact matchAmersham, United KingdomHQ recorded Sep 30, 202611-503 contacts →

Exact match

“We can offer process design and turnkey construction capability in all aspects of water treatment plant including pre-treatment, reverse osmosis, ion exchange, membrane…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15Exact matchEast Horsley, United KingdomHQ recorded Sep 30, 202611-502 contacts →

Exact match

“Aquathin is the leading provider of Reverse Osmosis water purification systems and the patented RODI system (combining RO with Dionization) for Ultra pure and clinically safe…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 30, 20261-102 contacts →

Exact match

“Osmotic Engineering provides a range of engineering and business development services for advanced membrane processes, including membrane based brine concentration, forward…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17Exact matchCambridge, United KingdomHQ recorded Sep 30, 202611-501 contacts →

Exact match

“Fistreem International produces a range of world-leading water purification products and accessories.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18Exact matchCardiff, United KingdomHQ recorded Sep 30, 202611-501 contacts →

Exact match

“Since inception in 1974 AWE's expertise has placed the company as a leader in the UK and worldwide in the field of water purification and water purification systems, including…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19Exact matchColchester, United KingdomHQ recorded Sep 30, 202611-501 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20Exact matchBirmingham, United KingdomHQ recorded Sep 30, 20261-101 contacts →

Exact match

“Regal Flow is an online retailer specialising in premium water treatment products from world-leading manufacturers.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21Exact matchEnfield, United KingdomHQ recorded Sep 30, 20261-101 contacts →

Exact match

“Hommix UK is a North London based water filtration company specialising in water softening, filtration and quality kitchen 3-way taps.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

Showing 21 of 43 reverse osmosis membrane manufacturers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 134 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Reverse osmosis membrane manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026
38.3%Verified-email coverage
8.1Average contacts per company
11-50Median size (employees)
11.6%Largest-city concentration · London
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
17
51-200
6
201-500
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 43 companies.

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.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “reverse osmosis membrane manufacturers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 134 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 September 30, 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.

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 membrane manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many reverse osmosis membrane manufacturers are there based in the United Kingdom?

RevenueBase identified 43 company matches for reverse osmosis membrane manufacturers associated with the United Kingdom as of September 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?

Salt Separation Services Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most reverse osmosis membrane manufacturers?

London leads with 5 company records, followed by Birmingham (2) and Bristol (2).

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 134 professional contacts with verified work emails tracked across these 43 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 September 30, 2026.

Ready to reach these companies? Verified emails and direct dials for all 43 reverse osmosis membrane manufacturers based in the United Kingdom. Start with a free account, no credit card.

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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.