Company lists · Data refreshed September 2026

Top 25 Industrial water filtration companies based in the United Kingdom

Name: Industrial water filtration companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 312 companies tracked

RevenueBase identified 312 industrial water filtration companies headquartered in the United Kingdom as of September 2026 and tracks 4,116 professional contacts across them, including 1,907 with verified work emails. London is the largest hub.

This list covers industrial water filtration companies headquartered in the United Kingdom, 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 17, 2026.

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 17, 2026 86% judged on-target in blind review

312Companies

4,116Contacts tracked

1,907Verified emails

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The 25 largest industrial water filtration companies based in the United Kingdom

Ranked by team size

Top 25 of 312 industrial water filtration companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial water filtration companies: 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	RSE	Partial evidence	Inverness Highlands, United KingdomHQ checked Sep 17, 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 17, 2026
2	Xylem Water Solutions UK & Ireland	Partial evidence	Nottingham, United KingdomHQ checked Sep 17, 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 17, 2026
3	Culligan UK	Partial evidence	Dereham, United KingdomHQ checked Sep 17, 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 17, 2026
4	Amazon Filters LTD	Partial evidence	Camberley, United KingdomHQ checked Sep 17, 2026	201-500	144 contacts →
	Partial evidence “Amazon Filters Ltd is one of Europe’s leading filtration equipment manufacturers.” Source: RevenueBase Database · checked Sep 17, 2026
5	Severn Trent Services	Partial evidence	Coventry, United KingdomHQ checked Sep 17, 2026	1,001-5,000	137 contacts →
	Partial evidence “Severn Trent Services offer a range of services to municipal and industrial clients, including the Ministry of Defence and the Coal Authority, for design, build and operation of…” Source: RevenueBase Database · checked Sep 17, 2026
6	Salt Separation Services Limited	Partial evidence	Rochdale, United KingdomHQ checked Sep 17, 2026	51-200	80 contacts →
	Partial evidence “Salt Separation Services Limited is an independent water treatment company specialising in the design, manufacture, installation and commissioning of water treatment systems.” Source: RevenueBase Database · checked Sep 17, 2026
7	Feedwater Limited	Partial evidence	Moreton, United KingdomHQ checked Sep 17, 2026	51-200	79 contacts →
	Partial evidence “Feedwater Ltd is a UK Water Treatment Company, established in 1976 specifically to supply products and services for the treatment of water for steam boilers, cooling towers…” Source: RevenueBase Database · checked Sep 17, 2026
8	Envirogen Group	Strong evidence	Alfreton, United KingdomHQ checked Sep 17, 2026	201-500	75 contacts →
	Strong evidence “Envirogen Group is a global leader in industrial water treatment and process filtration solutions.” Source: RevenueBase Database · checked Sep 17, 2026
9	Siltbuster LTD	Partial evidence	Monmouth, United KingdomHQ checked Sep 17, 2026	51-200	75 contacts →
	Partial evidence “At Siltbuster Ltd, we operate the UK’s largest rental fleet of water treatment systems, setting the industry benchmark for rapid, reliable, and cost-effective solutions.” Source: RevenueBase Database · checked Sep 17, 2026
10	Richard Alan	Indirect evidence	Dewsbury, United KingdomHQ checked Sep 17, 2026	51-200	74 contacts →
	Indirect evidence “Established in 1970, the West Yorkshire-based Richard Alan Group is a portfolio of businesses providing high-quality Engineering Design, Manufacture, Installation and Servicing to…” Source: RevenueBase Database · checked Sep 17, 2026
11	Jacopa Limited	Indirect evidence	West Bromwich, United KingdomHQ checked Sep 17, 2026	51-200	73 contacts →
	Indirect evidence “Many of the best known, most respected and reliable brand names in the wastewater industry are part of Jacopa's heritage.” Source: RevenueBase Database · checked Sep 17, 2026
12	Fileder Filter Systems	Indirect evidence	Maidstone, United KingdomHQ checked Sep 17, 2026	51-200	53 contacts →
	Indirect evidence “In short, we’re 'easy to deal with'.” Source: RevenueBase Database · checked Sep 17, 2026
13	Hydrotec Water Treatment Specialists	Partial evidence	High Wycombe, United KingdomHQ checked Sep 17, 2026	51-200	50 contacts →
	Partial evidence “Hydrotec is the UK’s leading company in the design and manufacture of water treatment products for the building services industry.” Source: RevenueBase Database · checked Sep 17, 2026
14	T-T Pumps LTD	Indirect evidence	Woore, United KingdomHQ checked Sep 17, 2026	51-200	49 contacts →
	Indirect evidence “Established in 1959, T-T started out as a general engineering company before growing to consist of 6 divisions – T-T Pumps, T-T Controls and Automation, T-T Flow Valves, T-T…” Source: RevenueBase Database · checked Sep 17, 2026
15	Huber Technology UK & Ireland	Partial evidence	Chippenham, United KingdomHQ checked Sep 17, 2026	51-200	48 contacts →
	Partial evidence “HUBER Technology was incorporated in the UK in 1993 as a wholly owned subsidiary of Huber SE- Huber UK & Ireland Limited, the manufacturers of the ROTAMAT range of waste water…” Source: RevenueBase Database · checked Sep 17, 2026
16	Atac Solutions LTD	Indirect evidence	Maidstone, United KingdomHQ checked Sep 17, 2026	11-50	44 contacts →
	Indirect evidence “ATAC Solutions Ltd is a leading UK environmental services company specialising in wastewater services and wastewater equipment on a capital purchase or hire basis.” Source: RevenueBase Database · checked Sep 17, 2026
17	Billi UK	Partial evidence	Wolverhampton, United KingdomHQ checked Sep 17, 2026	51-200	40 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
18	Hydro Industries Limited	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	40 contacts →
	Strong evidence “Hydro Industries.generating clean water Clean Water is a limited natural resource essential for life and economic growth.” Source: RevenueBase Database · checked Sep 17, 2026
19	Axium Process LTD	Partial evidence	Hendy, United KingdomHQ checked Sep 17, 2026	51-200	36 contacts →
	Partial evidence “Axium Process is a ‘one stop’ engineering house providing customised solutions to meet your individual requirements be it for a membrane filtration system to treat your effluent…” Source: RevenueBase Database · checked Sep 17, 2026
20	Sterling Hydrotech Marlowe Environmental Services	Strong evidence	Chesterfield, United KingdomHQ checked Sep 17, 2026	51-200	36 contacts →
	Strong evidence “Swimming Pool Filtration and Water Treatment Specialist Sterling Hydrotech are part of WCS Environmental Engineering, registered in England and Wales (02275897) at 20 Grosvenor…” Source: RevenueBase Database · checked Sep 17, 2026
21	Bollfilter UK	Partial evidence	Tolleshunt D'arcy, United KingdomHQ checked Sep 17, 2026	501-1,000	29 contacts →
	Partial evidence “BOLLFILTER is a brand of the renowned BOLL & KIRCH Filterbau GmbH in Germany, a world market leader in providing liquid and gas filtration equipment since 1950, with subsidiaries…” Source: RevenueBase Database · checked Sep 17, 2026
22	Epsco LTD	Strong evidence	Perth, United KingdomHQ checked Sep 17, 2026	11-50	29 contacts →
	Strong evidence “EPSCO delivers the highest standards in water system cleanliness and performance, specialising in Offshore and Marine potable water, Industrial Cooling and Water Utilities.” Source: RevenueBase Database · checked Sep 17, 2026
23	Filpumps LTD	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Filpumps was established in 1992 to fulfil a number of external factors.” Source: RevenueBase Database · checked Sep 17, 2026
24	Lubron UK	Partial evidence	Colchester, United KingdomHQ checked Sep 17, 2026	51-200	26 contacts →
	Partial evidence “Lubron Water Technology UK is part of the European Market leading water treatment provider, Lubron Group, which has subsidiaries in the Netherlands, Germany and Belgium.” Source: RevenueBase Database · checked Sep 17, 2026
25	Chem-Aqua Europe	Partial evidence	Wolverhampton, United KingdomHQ checked Sep 17, 2026	n/a	25 contacts →
	Partial evidence “Water treatment is an important part of preventative maintenance programmes for boiler, cooling and process water systems.” Source: RevenueBase Database · checked Sep 17, 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: industrial water filtration companies. 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 industrial water filtration companies.
Partial evidence: Its own public description names part of industrial water filtration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial water filtration companies. 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 312 industrial water filtration companies based in the United Kingdom

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Industrial water filtration companies based in the United Kingdom at a glance

As of Sep 17, 2026

46.3%Verified-email coverage

13.2Average contacts per company

11-50Median size (employees)

6.4%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

146

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 312 companies.

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 industrial water filtration companies, 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.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “industrial water filtration companies”. 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 industrial water filtration companies), 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 industrial water filtration companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
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, 1,907 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 17, 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.

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 industrial water filtration companies, 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 industrial water filtration companies are there based in the United Kingdom?

RevenueBase identified 312 industrial water filtration companies headquartered in the United Kingdom 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?

RSE, headquartered in Inverness Highlands, tops this list with the largest team on record.

Which city has the most industrial water filtration companies?

London leads with 20 headquartered companies, followed by Aberdeen (4) and Kings Lynn (4).

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 1,907 verified decision-maker contacts tracked across these 312 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 17, 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.