Company lists · Data refreshed September 2026

Top 25 Farm water treatment companies based in the United Kingdom

Name: Farm water treatment 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 181 companies tracked

RevenueBase identified 181 farm water treatment companies headquartered in the United Kingdom as of September 2026 and tracks 2,408 professional contacts across them, including 1,067 with verified work emails. London is the largest hub.

This list covers farm water treatment 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

181Companies

2,408Contacts tracked

1,067Verified emails

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

The 25 largest farm water treatment companies based in the United Kingdom

Ranked by team size

Top 25 of 181 farm water treatment 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 farm water treatment 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 19, 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 19, 2026
2	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
3	Salt Separation Services Limited	Strong evidence	Rochdale, United KingdomHQ checked Sep 19, 2026	51-200	80 contacts →
	Strong 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 19, 2026
4	Envirogen Group	Strong evidence	Alfreton, United KingdomHQ checked Sep 19, 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 19, 2026
5	Siltbuster LTD	Strong evidence	Monmouth, United KingdomHQ checked Sep 19, 2026	51-200	75 contacts →
	Strong 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
6	Hydrotec Water Treatment Specialists	Strong evidence	High Wycombe, United KingdomHQ checked Sep 19, 2026	51-200	50 contacts →
	Strong 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 19, 2026
7	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
8	Hydro Industries Limited	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	40 contacts →
	Partial evidence “Hydro Industries.generating clean water Clean Water is a limited natural resource essential for life and economic growth.” Source: RevenueBase Database · checked Sep 19, 2026
9	Water Treatment Products LTD	Strong evidence	Blaenavon, United KingdomHQ checked Sep 19, 2026	51-200	40 contacts →
	Strong 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
10	Elentec	Strong evidence	Bethesda, United KingdomHQ checked Sep 19, 2026	11-50	36 contacts →
	Strong evidence “Elentec develops and supplies electrochemical water treatment systems - together with appropriate separation technology.” Source: RevenueBase Database · checked Sep 19, 2026
11	Marsh Industries LTD	Strong evidence	Northamptonshire, United KingdomHQ checked Sep 19, 2026	51-200	33 contacts →
	Strong evidence “Marsh Industries delivers world-class water/wastewater treatment products and solutions to the domestic, commercial, agricultural and leisure sectors from its UK manufacturing…” Source: RevenueBase Database · checked Sep 19, 2026
12	Lubron UK	Strong evidence	Colchester, United KingdomHQ checked Sep 19, 2026	51-200	26 contacts →
	Strong 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
13	Chem-Aqua Europe	Strong evidence	Wolverhampton, United KingdomHQ checked Sep 19, 2026	n/a	25 contacts →
	Strong 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
14	TWC Total Water Care	Strong evidence	Bicester, United KingdomHQ checked Sep 19, 2026	11-50	22 contacts →
	Strong 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
15	Acwa Services Limited	Strong evidence	Skipton, United KingdomHQ checked Sep 19, 2026	11-50	22 contacts →
	Strong evidence “ACWA Services Limited is a Municipal and Industrial Water and Wastewater Treatment company located in Skipton, United Kingdom.” Source: RevenueBase Database · checked Sep 19, 2026
16	Excel Water LTD	Strong evidence	Castleford, United KingdomHQ checked Sep 19, 2026	11-50	21 contacts →
	Strong 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
17	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
18	Synthesis	Strong evidence	Alderley Edge, United KingdomHQ checked Sep 19, 2026	51-200	15 contacts →
	Strong 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
19	Viltra	Partial evidence	Newry, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “Viltra specialises in designing, manufacturing and installing wastewater treatment solutions for a wide range of sectors throughout the UK and Ireland, including domestic…” Source: RevenueBase Database · checked Sep 19, 2026
20	Aquabio LTD	Indirect evidence	Worcester, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Aquabio is a pioneering company born with a passion for innovation combined with a strong ethos for environmental sustainability.” Source: RevenueBase Database · checked Sep 19, 2026
21	Bywater Services LTD	Strong evidence	Coalville, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Strong evidence “Established in ByWater Services is a UK specialist in commercial water treatment, water recycling and wastewater management solutions.” Source: RevenueBase Database · checked Sep 19, 2026
22	Plantwork Systems LTD	Strong evidence	Alton, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Strong evidence “Plantwork Systems Ltd (PWS) provides water and wastewater treatment solutions with a strong focus on sustainability, innovation and cost efficiency.” Source: RevenueBase Database · checked Sep 19, 2026
23	Esmil Process Systems	Indirect evidence	High Wycombe Bucks, United KingdomHQ checked Sep 19, 2026	1-10	12 contacts →
	Indirect evidence “ESMIL Process Systems is an award winning Construction company located in United Kingdom.” Source: RevenueBase Database · checked Sep 19, 2026
24	Adept Pure Water LTD	Strong evidence	Wellingborough, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Strong 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
25	Kennet Water LTD	Strong evidence	Berkshire, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Strong evidence “Kennet Water supplies equipment and components to water treatment professionals.” 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: farm water treatment 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 farm water treatment companies.
Partial evidence: Its own public description names part of farm water treatment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name farm water treatment 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 181 farm water treatment 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 1,067 reachable decision-makers.

Free signup · no credit card

View the full list →

Farm water treatment companies based in the United Kingdom at a glance

As of Sep 19, 2026

44.3%Verified-email coverage

13.3Average contacts per company

1-10Median size (employees)

4.4%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

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 181 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 farm water treatment 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 “farm water treatment 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 farm water treatment 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 farm water treatment 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, 1,067 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 farm water treatment 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 farm water treatment companies are there based in the United Kingdom?

RevenueBase identified 181 farm water treatment 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 farm water treatment companies?

London leads with 8 headquartered companies, followed by Belfast (4) and Bristol (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 1,067 verified decision-maker contacts tracked across these 181 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 181 farm water treatment companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Farm water treatment companies by geography

Browse the directory

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.