Company lists · Data refreshed September 2026

Top 25 Water management technology companies based in the United Kingdom

Name: Water management technology 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 22, 2026 199 companies tracked

RevenueBase identified 199 water management technology companies headquartered in the United Kingdom as of September 2026 and tracks 11,179 professional contacts across them, including 3,892 with verified work emails. London is the largest hub.

This list covers water management technology 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 22, 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 22, 2026 86% judged on-target in blind review

199Companies

11,179Contacts tracked

3,892Verified emails

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The 25 largest water management technology companies based in the United Kingdom

Ranked by team size

Top 25 of 199 water management technology companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to water management technology 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 22, 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 22, 2026
2	RSE	Strong evidence	Inverness Highlands, United KingdomHQ checked Sep 22, 2026	501-1,000	498 contacts →
	Strong 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 22, 2026
3	Bermad	Strong evidence	Berkshire, United KingdomHQ checked Sep 22, 2026	201-500	399 contacts →
	Strong evidence “Over the past six decades, BERMAD, a privately-owned global company has been recognized as a world leader in water and flow management solutions.” Source: RevenueBase Database · checked Sep 22, 2026
4	Xylem Water Solutions UK & Ireland	Partial evidence	Nottingham, United KingdomHQ checked Sep 22, 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 22, 2026
5	Biwater	Partial evidence	Surrey, United KingdomHQ checked Sep 22, 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 22, 2026
6	Hydro International	Strong evidence	Clevedon, United KingdomHQ checked Sep 22, 2026	201-500	166 contacts →
	Strong evidence “Hydro International, a CRH Company, provides advanced products, services and expertise to help municipal, industrial and construction customers to improve their water management…” Source: RevenueBase Database · checked Sep 22, 2026
7	Enpure	Partial evidence	Birmingham, United KingdomHQ checked Sep 22, 2026	51-200	113 contacts →
	Partial evidence “Enpure is a process engineering company specializing in water, wastewater and sludge treatment as well as waste-to-energy solutions with a global presence.” Source: RevenueBase Database · checked Sep 22, 2026
8	Alumasc Water Management Solutions	Strong evidence	Kettering, United KingdomHQ checked Sep 22, 2026	51-200	112 contacts →
	Strong evidence “AWMS, part of Alumasc Group, is the first joined-up brand in integrated water management.” Source: RevenueBase Database · checked Sep 22, 2026
9	ACO Technologies PLC	Strong evidence	Shefford, United KingdomHQ checked Sep 22, 2026	201-500	85 contacts →
	Strong evidence “ACO is recognised as a global leader in the development and manufacture of high performance surface water management systems.” Source: RevenueBase Database · checked Sep 22, 2026
10	Nijhuis Saur Industries UK And Ireland	Partial evidence	United Kingdom & Ireland, United KingdomHQ checked Sep 22, 2026	201-500	76 contacts →
	Partial evidence “At Nijhuis Saur Industries UK & Ireland our aim is to help our customers realise the value of their water and wastewater.” Source: RevenueBase Database · checked Sep 22, 2026
11	Envirogen Group	Partial evidence	Alfreton, United KingdomHQ checked Sep 22, 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 22, 2026
12	Siltbuster LTD	Partial evidence	Monmouth, United KingdomHQ checked Sep 22, 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 22, 2026
13	Waterscan	Strong evidence	Chichester, United KingdomHQ checked Sep 22, 2026	51-200	73 contacts →
	Strong evidence “Waterscan is an industry-leading sustainable water management company.” Source: RevenueBase Database · checked Sep 22, 2026
14	Fido Tech	Partial evidence	Oxford, United KingdomHQ checked Sep 22, 2026	51-200	72 contacts →
	Partial evidence “FIDO AI helps utilities, municipalities and corporations with big water goals accurately find leaks in supply networks, rapidly reduce water loss at scale and quantifiably improve…” Source: RevenueBase Database · checked Sep 22, 2026
15	T-T Pumps LTD	Indirect evidence	Woore, United KingdomHQ checked Sep 22, 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 22, 2026
16	Aqualogic WC LTD	Strong evidence	Wallasey, United KingdomHQ checked Sep 22, 2026	51-200	46 contacts →
	Strong 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 22, 2026
17	Bluewater BIO	Partial evidence	London, United KingdomHQ checked Sep 22, 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 22, 2026
18	Polypipe Civils & Green Urbanisation	Strong evidence	Loughborough, United KingdomHQ checked Sep 22, 2026	1,001-5,000	43 contacts →
	Strong evidence “Part of the Genuit Group, Polypipe Civils & Green Urbanisation is a market-leading manufacturer of innovative water management, network and green asset solutions, working to…” Source: RevenueBase Database · checked Sep 22, 2026
19	Graf UK LTD	Strong evidence	Banbury, United KingdomHQ checked Sep 22, 2026	51-200	43 contacts →
	Strong 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 22, 2026
20	Hydro Industries Limited	Partial evidence	London, United KingdomHQ checked Sep 22, 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 22, 2026
21	BWA Water Additives	Strong evidence	M32 0tb, United KingdomHQ checked Sep 22, 2026	51-200	38 contacts →
	Strong evidence “BWA is a technology-led specialty chemicals company who provides sustainable water management solutions to increase our customers’ competitive advantage.” Source: RevenueBase Database · checked Sep 22, 2026
22	Prominent UK & Ireland	Partial evidence	Ashby-de-la-zouch, United KingdomHQ checked Sep 22, 2026	11-50	36 contacts →
	Partial evidence “The ProMinent Group is a manufacturer of components and systems for metering as well as a reliable solution partner for water treatment.” Source: RevenueBase Database · checked Sep 22, 2026
23	Panton Mcleod	Partial evidence	Selkirk, United KingdomHQ checked Sep 22, 2026	11-50	35 contacts →
	Partial evidence “Our teams are dedicated to supporting our clients to protect, maintain and improve water quality within treatment and distribution systems.” Source: RevenueBase Database · checked Sep 22, 2026
24	Watertight Management	Strong evidence	Bromsgrove, United KingdomHQ checked Sep 22, 2026	51-200	31 contacts →
	Strong evidence “Watertight Management has established itself as a leader in the provision of Clean and Waste water management services.” Source: RevenueBase Database · checked Sep 22, 2026
25	Origin Tech LTD UK	Strong evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 22, 2026	11-50	29 contacts →
	Strong evidence “Origin Tech are a multi award winning UK based Water technology company.” Source: RevenueBase Database · checked Sep 22, 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 management technology 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 management technology companies.
Partial evidence: Its own public description names part of water management technology companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water management technology 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 199 water management technology companies based in the United Kingdom

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Water management technology companies based in the United Kingdom at a glance

As of Sep 22, 2026

34.8%Verified-email coverage

56.2Average contacts per company

11-50Median size (employees)

12.1%Largest-city concentration · London

Sep 22, 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 199 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 management technology 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 management technology 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 management technology 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 management technology 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, 3,892 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 22, 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 management technology 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 management technology companies are there based in the United Kingdom?

RevenueBase identified 199 water management technology 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 management technology companies?

London leads with 24 headquartered companies, followed by Southampton (5) and Coventry (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 3,892 verified decision-maker contacts tracked across these 199 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 22, 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.