Company lists · Data refreshed September 2026

Top 25 Water softening companies based in the United Kingdom

Name: Water softening 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 19, 2026 81 companies tracked

RevenueBase identified 81 water softening companies headquartered in the United Kingdom as of September 2026 and tracks 713 professional contacts across them, including 249 with verified work emails. London is the largest hub.

This list covers water softening 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 19, 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 19, 2026 86% judged on-target in blind review

81Companies

713Contacts tracked

249Verified emails

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The 25 largest water softening companies based in the United Kingdom

Ranked by team size

Top 25 of 81 water softening companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to water softening 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	Culligan UK	Partial evidence	Dereham, United KingdomHQ checked Sep 19, 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 19, 2026
2	Culligan Harvey	Partial evidence	Woking, United KingdomHQ checked Sep 19, 2026	201-500	117 contacts →
	Partial evidence “We are the leading water softener manufacturer in the UK.” Source: RevenueBase Database · checked Sep 19, 2026
3	Billi UK	Partial evidence	Wolverhampton, United KingdomHQ checked Sep 19, 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 19, 2026
4	Lubron UK	Partial evidence	Colchester, United KingdomHQ checked Sep 19, 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 19, 2026
5	Excel Water LTD	Partial evidence	Castleford, United KingdomHQ checked Sep 19, 2026	11-50	21 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
6	Monarch Water	Partial evidence	Diss, United KingdomHQ checked Sep 19, 2026	11-50	20 contacts →
	Partial evidence “Monarch is a leading UK manufacturer and distributor of high quality, high performance water softeners, water conditioners, scale inhibitors, water filters and purifiers, taps and…” Source: RevenueBase Database · checked Sep 19, 2026
7	Adept Pure Water LTD	Partial evidence	Wellingborough, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “ADEPT Pure Water Limited are specialists in the design, manufacture, commission, installation and Service of Water Purification and Treatment Plant and equipment.” Source: RevenueBase Database · checked Sep 19, 2026
8	Fluid Dynamics International LTD FDI	Partial evidence	Dorchester, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “Welcome to the world's leading manufacturer of water conditioners for limescale treatment.” Source: RevenueBase Database · checked Sep 19, 2026
9	Euraqua UK	Partial evidence	Hitchin, United KingdomHQ checked Sep 19, 2026	11-50	7 contacts →
	Partial evidence “Euraqua is the foremost supplier of water treatment equipment in the UK.” Source: RevenueBase Database · checked Sep 19, 2026
10	Total Soft Water LTD	Indirect evidence	Harpenden, United KingdomHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
11	Aquatiere Water Filtration Systems	Partial evidence	Dorset, United KingdomHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “Helping businesses across the UK navigate today’s water challenges.” Source: RevenueBase Database · checked Sep 19, 2026
12	Aquasoft UK	Partial evidence	Canterbury, United KingdomHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “Specialists in \| Water Softeners \| Water Filtration \| Hard Water Solutions \| Commercial and Industrial.” Source: RevenueBase Database · checked Sep 19, 2026
13	Xion Water Technologies	Partial evidence	Peterborough, United KingdomHQ checked Sep 19, 2026	1-10	4 contacts →
	Partial evidence “Xion Water Technologies provide a comprehensive range of water treatment solutions and services.” Source: RevenueBase Database · checked Sep 19, 2026
14	Watercare	Indirect evidence	Harlow, United KingdomHQ checked Sep 19, 2026	51-200	4 contacts →
	Indirect evidence “We are proud of who we are, what we do and why we do it.” Source: RevenueBase Database · checked Sep 19, 2026
15	Greens Water Systems	Partial evidence	Lincoln, United KingdomHQ checked Sep 19, 2026	11-50	4 contacts →
	Partial evidence “Greens Water Systems are UK leading suppliers and installers of domestic and commercial water softeners and drinking water systems.” Source: RevenueBase Database · checked Sep 19, 2026
16	Advanced Water Treatment UK LTD	Partial evidence	Downham Market, United KingdomHQ checked Sep 19, 2026	1-10	4 contacts →
	Partial evidence “ADVANCED WATER TREATMENT is a company based in East Anglia providing water treatment equipment and services to industry.” Source: RevenueBase Database · checked Sep 19, 2026
17	Ionic Technical Services	Partial evidence	Horsham, United KingdomHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “Ionic Technical Services are an independent water treatment plant services company with over 20 years of experience in the industry.” Source: RevenueBase Database · checked Sep 19, 2026
18	Sterling Softeners	Partial evidence	Chesham, United KingdomHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “Your local, independent, water treatment specialists.” Source: RevenueBase Database · checked Sep 19, 2026
19	Advanced Hydro Limited	Partial evidence	Challock, United KingdomHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “At Advanced Hydro LTD we specialise in chemical-free scale reduction for domestic, commercial and industrial water systems.” Source: RevenueBase Database · checked Sep 19, 2026
20	Little Plumber Water Products	Partial evidence	Wantage, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Splendid Products Ltd are a small but well-established family-run business based in rural Oxfordshire, producing and selling an effective range of electronic no-salt water…” Source: RevenueBase Database · checked Sep 19, 2026
21	Southern Softflow	Partial evidence	Wimborne, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Independent supplier of water softeners and drinking water systems across Dorset, Hampshire and Wiltshire.” Source: RevenueBase Database · checked Sep 19, 2026
22	East Midlands Water Company Limited	Partial evidence	Leicester, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “EMWC East Midlands Water Company - Supplying replacement water filters, domestic water softeners, water coolers, purifiers, chillers, limescale prevention, and ionisers UK.” Source: RevenueBase Database · checked Sep 19, 2026
23	Elexion	Indirect evidence	Poole, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Collaborating with our German partners, who are leading experts, with a combined experience of over 50 + years in the prevention of system corrosion, eleXion provides high quality…” Source: RevenueBase Database · checked Sep 19, 2026
24	Hydroworks Water Softeners	Indirect evidence	Sheldwich, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “We are an independent, local, family run business, founded in 1926.” Source: RevenueBase Database · checked Sep 19, 2026
25	AWE Anderson Water Equipment LTD	Partial evidence	Cardiff, United KingdomHQ checked Sep 19, 2026	11-50	1 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 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: water softening 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 water softening companies.
Partial evidence: Its own public description names part of water softening companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water softening 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 81 water softening companies based in the United Kingdom

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Water softening companies based in the United Kingdom at a glance

As of Sep 19, 2026

34.9%Verified-email coverage

8.8Average contacts per company

1-10Median size (employees)

4.9%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 81 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 water softening 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 “water softening 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 water softening 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 water softening 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, 249 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 19, 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 water softening 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 water softening companies are there based in the United Kingdom?

RevenueBase identified 81 water softening 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?

Culligan UK, headquartered in Dereham, tops this list with the largest team on record.

Which city has the most water softening companies?

London leads with 4 headquartered companies, followed by Bristol (2) and Colchester (2).

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 249 verified decision-maker contacts tracked across these 81 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 19, 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.