Company lists · Data refreshed September 2026

Top 25 Municipal water utilities based in the United Kingdom

Name: Municipal water utilities based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 91 companies tracked

RevenueBase identified 91 company matches for municipal water utilities associated with the United Kingdom as of September 2026 and tracks 25,293 professional contacts across them, including 9,188 with verified work emails. Barnsley is the largest hub.

This list covers company matches for municipal water utilities associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

91Companies

25,293Contacts tracked

9,188Verified emails

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The 25 largest municipal water utilities based in the United Kingdom

Ranked by team size

Top 25 of 91 company matches for municipal water utilities based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Thames Water	Exact match	Reading, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	5,648 contacts →
	Exact match “Thames Water is the UK’s biggest water and wastewater services provider, providing 2.7 billion litres of drinking water and safely removing 4.6 billion litres of wastewater every…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Severn Trent	Exact match	Coventry, United KingdomHQ recorded Sep 17, 2026	5,001-10,000	5,563 contacts →
	Exact match “Water is wonderful.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Anglian Water Services	Exact match	Huntingdon, United KingdomHQ recorded Sep 17, 2026	5,001-10,000	3,430 contacts →
	Exact match “Anglian Water supply water and water recycling services to more than six million domestic and business customers in the east of England and Hartlepool.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	DŴR Cymru Welsh Water	Exact match	Cardiff, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	1,868 contacts →
	Exact match “Bath-times, half-times, party-times, meeting-times, and cooking-times.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Morrison Water Services	Exact match	Stevenage, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	1,153 contacts →
	Exact match “With a significant national workforce operating daily in local communities, we support our clients to keep their assets resilient ensuring customer taps flow, and all wastewater…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Affinity Water	Exact match	Hatfield, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	928 contacts →
	Exact match “Our vision is to be the leading community-focused water company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Bristol Water	Exact match	Bristol, United KingdomHQ recorded Sep 17, 2026	201-500	299 contacts →
	Exact match “Bristol Water is part of Pennon Group plc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	South Staffs Water	Exact match	Walsall, United KingdomHQ recorded Sep 17, 2026	501-1,000	238 contacts →
	Exact match “South Staffs Water is a private water company formed in 1853 to provide water to the inhabitants of the Black Country.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Biwater	Exact match	Surrey, United KingdomHQ recorded Sep 17, 2026	501-1,000	178 contacts →
	Exact match “Biwater is a world leader in treated water, providing large-scale water and wastewater solutions for clients across the world.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Severn Trent Services	Exact match	Coventry, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	137 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Nijhuis Saur Industries UK And Ireland	Exact match	United Kingdom & Ireland, United KingdomHQ recorded Sep 17, 2026	201-500	76 contacts →
	Exact match “At Nijhuis Saur Industries UK & Ireland our aim is to help our customers realise the value of their water and wastewater.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Water2business	Exact match	Bristol, United KingdomHQ recorded Sep 17, 2026	51-200	51 contacts →
	Exact match “water2business is a leading retailer of water and waste water management solutions to businesses and organisations across England and Scotland.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Panton Mcleod	Exact match	Selkirk, United KingdomHQ recorded Sep 17, 2026	11-50	35 contacts →
	Exact match “Our teams are dedicated to supporting our clients to protect, maintain and improve water quality within treatment and distribution systems.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Watertight Management	Exact match	Bromsgrove, United KingdomHQ recorded Sep 17, 2026	51-200	31 contacts →
	Exact match “Watertight Management has established itself as a leader in the provision of Clean and Waste water management services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	M & S Water Services Utilities Limited	Exact match	Luton, United KingdomHQ recorded Sep 17, 2026	51-200	29 contacts →
	Exact match “M&S Water Services (Utilities) Limited has been trading since 1997 when the company was set up to bridge the gap between water companies and the customer that domestic plumbers…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	TWC Total Water Care	Exact match	Bicester, United KingdomHQ recorded Sep 17, 2026	11-50	22 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Acwa Services Limited	Exact match	Skipton, United KingdomHQ recorded Sep 17, 2026	11-50	22 contacts →
	Exact match “ACWA Services Limited is a Municipal and Industrial Water and Wastewater Treatment company located in Skipton, United Kingdom.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Pure Utilities	Exact match	Preston, United KingdomHQ recorded Sep 17, 2026	11-50	22 contacts →
	Exact match “Pure Utilities is a Licensed Provider offering business users in Scotland a fresh choice for their water, waste water & drainage services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Excel Water LTD	Exact match	Castleford, United KingdomHQ recorded Sep 17, 2026	11-50	21 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Advanced Water Infrastructure Networks	Exact match	Braintree, United KingdomHQ recorded Sep 17, 2026	11-50	19 contacts →
	Exact match “Advanced Water Infrastructure Networks (AWIN) provides clean water services and wastewater services to customers in new-build residential developments, as well as smooth asset…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Aquacare	Exact match	Bournemouth, United KingdomHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “Aquacare is a water management specialist and part of South West Water, whose parent company is Pennon Group plc who have assets of around £5.9 billion and a workforce of around…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Plantwork Systems LTD	Exact match	Alton, United KingdomHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “Plantwork Systems Ltd (PWS) provides water and wastewater treatment solutions with a strong focus on sustainability, innovation and cost efficiency.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Waterwise Utilities LTD	Exact match	Clydebank, United KingdomHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “WaterWise Utilities Ltd is an LRQA-accredited utility infrastructure contractor delivering high-quality water, electrical and traffic management solutions across Scotland.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Aqua Allies LTD	Exact match	Peterborough, United KingdomHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “Water Services for retail, industrial & healthcare facilities” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	A Spec Environmental LTD	Exact match	Camberley, United KingdomHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “Our expertise spans the full spectrum of water treatment, including adherence to BSRIA codes and the application of CPC Filtration methodology.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “municipal water utilities”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 91 municipal water utilities based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 9,188 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Municipal water utilities based in the United Kingdom at a glance

As of Sep 17, 2026

36.3%Verified-email coverage

277.9Average contacts per company

11-50Median size (employees)

3.3%Largest-city concentration · Barnsley

Sep 17, 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 91 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “municipal water utilities” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 9,188 professional contacts with verified work emails across the full matched dataset. 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 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “municipal water utilities”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many municipal water utilities are there based in the United Kingdom?

RevenueBase identified 91 company matches for municipal water utilities associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Thames Water tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most municipal water utilities?

Barnsley leads with 3 company records, followed by Hatfield (3) and London (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 9,188 professional contacts with verified work emails tracked across these 91 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 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 SmartSearch, 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.