Company lists · Data refreshed September 2026

Top 25 Water conditioning services companies based in the United Kingdom

Name: Water conditioning services 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 191 companies tracked

RevenueBase identified 191 water conditioning services companies headquartered in the United Kingdom as of September 2026 and tracks 1,754 professional contacts across them, including 533 with verified work emails. London is the largest hub.

This list covers water conditioning services 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

191Companies

1,754Contacts tracked

533Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest water conditioning services companies based in the United Kingdom

Ranked by team size

Top 25 of 191 water conditioning services 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 conditioning services 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	Envirogen Group	Partial evidence	Alfreton, United KingdomHQ checked Sep 19, 2026	201-500	75 contacts →
	Partial evidence “Envirogen Group is a global leader in industrial water treatment and process filtration solutions.” Source: RevenueBase Database · checked Sep 19, 2026
3	Siltbuster LTD	Partial evidence	Monmouth, United KingdomHQ checked Sep 19, 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 19, 2026
4	Guardian Water Treatment Marlowe Environmental Services	Partial evidence	Basildon, United KingdomHQ checked Sep 19, 2026	51-200	50 contacts →
	Partial evidence “Guardian part of Marlowe Environmental Services, delivers a range of water treatment and air quality services, allowing the systems that rely on these elements to work effectively…” Source: RevenueBase Database · checked Sep 19, 2026
5	PH Water Part Of Complii	Partial evidence	Farnborough, United KingdomHQ checked Sep 19, 2026	51-200	50 contacts →
	Partial evidence “ph Water technologies are one of the leading ‘Total Environment Solutions Companies' operating within the UK.” Source: RevenueBase Database · checked Sep 19, 2026
6	Water Treatment Products LTD	Partial evidence	Blaenavon, United KingdomHQ checked Sep 19, 2026	51-200	40 contacts →
	Partial evidence “Water Treatment Products Ltd, established in formulate and manufacture speciality chemicals for a wide range of water treatment companies and applications.” Source: RevenueBase Database · checked Sep 19, 2026
7	Reigate Environmental Services Limited	Partial evidence	Redhill, United KingdomHQ checked Sep 19, 2026	11-50	31 contacts →
	Partial evidence “Reigate Environmental Services Limited is a Water Treatment and Maintenance company based at 42 Ormside Way, Holmethorpe Industrial Estate, Redhill, Surrey, United Kingdom.” Source: RevenueBase Database · checked Sep 19, 2026
8	GES Water	Indirect evidence	Aylesbury, United KingdomHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “Since 1990 we have provided our clients with leading edge solutions to legionella management.” Source: RevenueBase Database · checked Sep 19, 2026
9	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
10	Chem-Aqua Europe	Partial evidence	Wolverhampton, United KingdomHQ checked Sep 19, 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 19, 2026
11	TWC Total Water Care	Partial evidence	Bicester, United KingdomHQ checked Sep 19, 2026	11-50	22 contacts →
	Partial evidence “Our core team have numerous years experience in the field of commercial water treatment and a proven track record of delivering effective, compliant water treatments packages.” Source: RevenueBase Database · checked Sep 19, 2026
12	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
13	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
14	Dynamika	Partial evidence	Southampton, United KingdomHQ checked Sep 19, 2026	1-10	20 contacts →
	Partial evidence “Dynamika is an established water treatment and environmental consultancy which provide services to the industrial, commercial, leisure and healthcare sectors throughout the UK.” Source: RevenueBase Database · checked Sep 19, 2026
15	Trident Water Solutions Limited	Partial evidence	Royal Wootton Bassett, United KingdomHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “Trident Water Solutions are a privately owned, independent company that prides itself on sector-leading levels, with a high quality service at a great value to the water…” Source: RevenueBase Database · checked Sep 19, 2026
16	Synthesis	Partial evidence	Alderley Edge, United KingdomHQ checked Sep 19, 2026	51-200	15 contacts →
	Partial evidence “We specialise in water treatment and disinfection, operating in almost every industry where water treatment is required.” Source: RevenueBase Database · checked Sep 19, 2026
17	Comfort Services Group	Partial evidence	Colchester, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “Comfort Services Group Ltd is a Water treatment, Water Hygiene, Validation and Commissioning of air and water systems company based in Essex serving London and the South East.” Source: RevenueBase Database · checked Sep 19, 2026
18	Hydropath Technology LTD	Indirect evidence	Nottingham, United KingdomHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “The development of HydroFLOW began in 1992, when Dr.” Source: RevenueBase Database · checked Sep 19, 2026
19	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
20	Hydrochem Group	Partial evidence	Hartlepool, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “HydroChem Group is the longest-serving independent water treatment specialist in the North of England.” Source: RevenueBase Database · checked Sep 19, 2026
21	Aquatech Environmental Services Limited	Partial evidence	Wolverhampton, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “Industry Leader In Legionella Control & Water Treatment Water Treatment Services Aquatech water treatment services cover all stages of water treatment from pretreatment through to…” Source: RevenueBase Database · checked Sep 19, 2026
22	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
23	Chemical Treatment Services LTD	Partial evidence	Belfast, United KingdomHQ checked Sep 19, 2026	11-50	10 contacts →
	Partial evidence “Chemical Treatment Services Ltd are a Belfast based water treatment company offering competitively priced chemicals and equipment with a prompt and efficient service.” Source: RevenueBase Database · checked Sep 19, 2026
24	B & V Chemicals	Partial evidence	Daventry, United KingdomHQ checked Sep 19, 2026	11-50	9 contacts →
	Partial evidence “B&V Chemicals offer water treatment companies worldwide the opportunity to expand their product range and receive industry leading technical back-up.” Source: RevenueBase Database · checked Sep 19, 2026
25	Synergy AIR & Water Limited	Partial evidence	Manchester, United KingdomHQ checked Sep 19, 2026	1-10	9 contacts →
	Partial evidence “Synergy Air & Water Limited are commissioning and water treatment contractors providing professional, quality, environmentally friendly and cost-efficient services throughout the…” 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 conditioning services 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 conditioning services companies.
Partial evidence: Its own public description names part of water conditioning services companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water conditioning services 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 191 water conditioning services companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 533 reachable decision-makers.

Free signup · no credit card

View the full list →

Water conditioning services companies based in the United Kingdom at a glance

As of Sep 19, 2026

30.4%Verified-email coverage

9.2Average contacts per company

1-10Median size (employees)

3.7%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

103

11-50

51-200

201-500

501-1,000

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 191 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 conditioning services 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 conditioning services 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 conditioning services 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 conditioning services 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, 533 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 conditioning services 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 conditioning services companies are there based in the United Kingdom?

RevenueBase identified 191 water conditioning services 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 conditioning services companies?

London leads with 7 headquartered companies, followed by Bristol (4) and Nottingham (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 533 verified decision-maker contacts tracked across these 191 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.

Ready to reach these companies? Verified emails and direct dials for all 191 water conditioning services companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Water conditioning services companies by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Water conditioning services companies lists · New 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 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.