Company lists · Data refreshed September 2026

Top 25 Water reuse companies based in the United Kingdom

Name: Water reuse 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 118 companies tracked

RevenueBase identified 118 water reuse companies headquartered in the United Kingdom as of September 2026 and tracks 13,477 professional contacts across them, including 5,104 with verified work emails. London is the largest hub.

This list covers water reuse 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

118Companies

13,477Contacts tracked

5,104Verified emails

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The 25 largest water reuse companies based in the United Kingdom

Ranked by team size

Top 25 of 118 water reuse 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 reuse 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	Pentair	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	5,001-10,000	6,636 contacts →
	Partial evidence “At Pentair, we help the world sustainably move, improve, and enjoy water, life’s most essential resource.” Source: RevenueBase Database · checked Sep 19, 2026
2	Anglian Water Services	Partial evidence	Huntingdon, United KingdomHQ checked Sep 19, 2026	5,001-10,000	3,430 contacts →
	Partial evidence “Anglian Water supply water and water recycling services to more than six million domestic and business customers in the east of England and Hartlepool.” Source: RevenueBase Database · checked Sep 19, 2026
3	ENVA	Indirect evidence	Enva, United KingdomHQ checked Sep 19, 2026	1,001-5,000	653 contacts →
	Indirect evidence “Enva is a full-service and leading provider of recycling and resource recovery solutions, employing over 1700 people at locations across the United Kingdom and Ireland.” Source: RevenueBase Database · checked Sep 19, 2026
4	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
5	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
6	Biwater	Partial evidence	Surrey, United KingdomHQ checked Sep 19, 2026	501-1,000	178 contacts →
	Partial evidence “Biwater is a world leader in treated water, providing large-scale water and wastewater solutions for clients across the world.” Source: RevenueBase Database · checked Sep 19, 2026
7	Severn Trent Services	Indirect evidence	Coventry, United KingdomHQ checked Sep 19, 2026	1,001-5,000	137 contacts →
	Indirect 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 19, 2026
8	Alumasc Water Management Solutions	Partial evidence	Kettering, United KingdomHQ checked Sep 19, 2026	51-200	112 contacts →
	Partial evidence “AWMS, part of Alumasc Group, is the first joined-up brand in integrated water management.” Source: RevenueBase Database · checked Sep 19, 2026
9	Salt Separation Services Limited	Partial evidence	Rochdale, United KingdomHQ checked Sep 19, 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 19, 2026
10	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
11	Jacopa Limited	Indirect evidence	West Bromwich, United KingdomHQ checked Sep 19, 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 19, 2026
12	ESD Joint Venture	Partial evidence	Stepps, United KingdomHQ checked Sep 19, 2026	201-500	58 contacts →
	Partial evidence “How we manage water and wastewater systems now will be critical for our communities and ecosystems for many generations to come.” Source: RevenueBase Database · checked Sep 19, 2026
13	Water2business	Partial evidence	Bristol, United KingdomHQ checked Sep 19, 2026	51-200	51 contacts →
	Partial evidence “water2business is a leading retailer of water and waste water management solutions to businesses and organisations across England and Scotland.” Source: RevenueBase Database · checked Sep 19, 2026
14	Aqualogic WC LTD	Partial evidence	Wallasey, United KingdomHQ checked Sep 19, 2026	51-200	46 contacts →
	Partial evidence “Aqualogic is an integrated water conservation and demand management business, helping water companies reduce waste, improve performance and strengthen long-term resilience through…” Source: RevenueBase Database · checked Sep 19, 2026
15	Stormsaver LTD	Strong evidence	Kirklington, United KingdomHQ checked Sep 19, 2026	11-50	44 contacts →
	Strong evidence “The UK's market leading suppliers of Rainwater Harvesting, Greywater Recycling, and Water Reuse Systems.” Source: RevenueBase Database · checked Sep 19, 2026
16	Bluewater BIO	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	43 contacts →
	Partial evidence “Bluewater Bio is an award winning global leader in sustainable water and wastewater treatment.” Source: RevenueBase Database · checked Sep 19, 2026
17	Graf UK LTD	Partial evidence	Banbury, United KingdomHQ checked Sep 19, 2026	51-200	43 contacts →
	Partial evidence “Graf UK Ltd was formed following the acquisition of SCP Water Management Ltd by Graf GmbH, the European market leaders in rainwater harvesting.” Source: RevenueBase Database · checked Sep 19, 2026
18	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
19	Wcsee Wastewater Marlowe Environmental Services	Indirect evidence	Gloucester, United KingdomHQ checked Sep 19, 2026	11-50	32 contacts →
	Indirect evidence “At WCSEE we collaborate closely with our clients to design and deliver reliable, robust, and future-proofed wastewater systems tailored to site specific requirements.” Source: RevenueBase Database · checked Sep 19, 2026
20	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
21	Waterwhelm	Partial evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	11-50	16 contacts →
	Partial evidence “Waterwhelm’s breakthrough water re-use and desalination technology operates at significantly lower pressures compared to reverse osmosis, resulting in lower capital and…” Source: RevenueBase Database · checked Sep 19, 2026
22	Te-Tech Process Solutions	Partial evidence	Southampton, United KingdomHQ checked Sep 19, 2026	501-1,000	16 contacts →
	Partial evidence “Te-Tech Process Solutions Ltd has been established to provide a dedicated service to existing and new clients in the municipal water, industrial and commercial sectors.” Source: RevenueBase Database · checked Sep 19, 2026
23	Viltra	Indirect evidence	Newry, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect 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
24	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
25	Bywater Services LTD	Partial evidence	Coalville, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial 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

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 reuse 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 reuse companies.
Partial evidence: Its own public description names part of water reuse companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water reuse 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 118 water reuse companies based in the United Kingdom

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Water reuse companies based in the United Kingdom at a glance

As of Sep 19, 2026

37.9%Verified-email coverage

114.2Average contacts per company

11-50Median size (employees)

8.5%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 118 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 reuse 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 reuse 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 reuse 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 reuse 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, 5,104 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 reuse 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 reuse companies are there based in the United Kingdom?

RevenueBase identified 118 water reuse 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?

Pentair, headquartered in London, tops this list with the largest team on record.

Which city has the most water reuse companies?

London leads with 10 headquartered companies, followed by Newry (4) and Coventry (3).

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 5,104 verified decision-maker contacts tracked across these 118 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.