Company lists · Data refreshed October 2026

Top 25 Municipal water infrastructure contractors based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Oct 18, 2026 181 companies tracked

RevenueBase identified 181 company matches for municipal water infrastructure contractors associated with the United Kingdom as of October 2026 and tracks 11,634 professional contacts across them, including 5,124 with verified work emails. London is the largest hub.

This list covers company matches for municipal water infrastructure contractors 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 October 18, 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 Oct 18, 2026 How this list was built

181Companies

11,634Contacts tracked

5,124Verified emails

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The 25 largest municipal water infrastructure contractors based in the United Kingdom

Ranked by team size

Top 25 of 181 company matches for municipal water infrastructure contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 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 Oct 18, 2026	1,001-5,000	6,151 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 · Oct 18, 2026 · View company records in RevenueBase
2	Lanes Group	Exact match	Leeds, United KingdomHQ recorded Oct 18, 2026	1,001-5,000	1,288 contacts →
	Exact match “Lanes Group is a leading provider of specialist drainage, utility, and asset maintenance services.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3	MWH Treatment	Exact match	Stockport, United KingdomHQ recorded Oct 18, 2026	1,001-5,000	930 contacts →
	Exact match “MWH Treatment is a leading Design and Build non-infrastructure solution provider in the UK water sector, with a water sector heritage dating back to 1820.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
4	Selwood LTD	Exact match	Eastleigh, United KingdomHQ recorded Oct 18, 2026	501-1,000	506 contacts →
	Exact match “Selwood is your trusted partner in mission-critical water handling, storage, and treatment solutions across the UK.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5	Sapphire Utility Solutions LTD	Exact match	Bamber Bridge, United KingdomHQ recorded Oct 18, 2026	1,001-5,000	333 contacts →
	Exact match “Sapphire Utility Solutions has quickly become a trusted name in the utility, transport and highways sectors, known for our capabilities in delivering innovative solutions to meet…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
6	Onsite Central Limited	Exact match	Worcester, United KingdomHQ recorded Oct 18, 2026	201-500	183 contacts →
	Exact match “Originally established in 1977, OnSite is a South Staffordshire Group owned company that has grown through strategic acquisition and organic expansion to become one of the UK's…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7	Envolve Infrastructure	Exact match	Cardiff Road, United KingdomHQ recorded Oct 18, 2026	201-500	154 contacts →
	Exact match “We’re envolve, specialist civil engineers.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8	Severn Trent Services	Exact match	Coventry, United KingdomHQ recorded Oct 18, 2026	1,001-5,000	147 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 · Oct 18, 2026 · View company records in RevenueBase
9	S&r Construction LTD	Exact match	Brierley Hill, United KingdomHQ recorded Oct 18, 2026	201-500	134 contacts →
	Exact match “S&R Construction was founded in 1998 with a view to providing affordable, sustainable gas, water and electric mains and utility installation services for a broad range of clients.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10	Doocey Group	Exact match	Tipton, United KingdomHQ recorded Oct 18, 2026	201-500	117 contacts →
	Exact match “Doocey Group Utility Infrastructure Contractor operating nationally in the construction Industry.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11	Willow Pumps Limited	Exact match	Kent, United KingdomHQ recorded Oct 18, 2026	51-200	64 contacts →
	Exact match “Willow Pumps provide expert services for all your pump, drainage, waste and clean water needs.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
12	J A Brooks	Exact match	London, United KingdomHQ recorded Oct 18, 2026	201-500	62 contacts →
	Exact match “J A Brooks was established in 1925 and has a long history in the delivery of Public health and Water services in the London and South East and hold an excellent reputation as one…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
13	BSG	Exact match	Maghera, United KingdomHQ recorded Oct 18, 2026	51-200	54 contacts →
	Exact match “With over 40 year’s industry experience, we are a leading engineering contractor with specialist expertise in the water and wastewater sector.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
14	ESD Joint Venture	Exact match	Stepps, United KingdomHQ recorded Oct 18, 2026	201-500	52 contacts →
	Exact match “How we manage water and wastewater systems now will be critical for our communities and ecosystems for many generations to come.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15	Veriflo Limited	Exact match	East Malling, United KingdomHQ recorded Oct 18, 2026	11-50	48 contacts →
	Exact match “Veriflo Ltd - a professional strategic project management company, specialising in clean water asset services.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16	Hydro International UK Wastewater Services	Exact match	Portland, United KingdomHQ recorded Oct 18, 2026	201-500	38 contacts →
	Exact match “Hydro International, a CRH Company, provides advanced products, services and expertise to help municipal, industrial and construction customers to improve their water management…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
17	Panton Mcleod	Exact match	Selkirk, United KingdomHQ recorded Oct 18, 2026	11-50	33 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 · Oct 18, 2026 · View company records in RevenueBase
18	Prestige Pipelaying JV LTD	Exact match	March, United KingdomHQ recorded Oct 18, 2026	201-500	33 contacts →
	Exact match “Welcome to Prestige Pipelaying LTD, a distinguished industry leader in the provision of essential infrastructure services within the United Kingdom.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19	Retroflo	Exact match	Seaham, United KingdomHQ recorded Oct 18, 2026	11-50	30 contacts →
	Exact match “Based in the North East of England, Retroflo Ltd are an Electrical and Mechanical contractor whose main activities are focused in the water industry.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20	Wcsee Wastewater Marlowe Environmental Services	Exact match	Gloucester, United KingdomHQ recorded Oct 18, 2026	11-50	29 contacts →
	Exact match “At WCSEE we collaborate closely with our clients to design and deliver reliable, robust, and future-proofed wastewater systems tailored to site specific requirements.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21	Watertight Management	Exact match	Bromsgrove, United KingdomHQ recorded Oct 18, 2026	51-200	29 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 · Oct 18, 2026 · View company records in RevenueBase
22	Acwa Services Limited	Exact match	Skipton, United KingdomHQ recorded Oct 18, 2026	11-50	26 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 · Oct 18, 2026 · View company records in RevenueBase
23	M & S Water Services Utilities Limited	Exact match	Luton, United KingdomHQ recorded Oct 18, 2026	51-200	25 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 · Oct 18, 2026 · View company records in RevenueBase
24	Ukdn Waterflow LG LTD	Exact match	Birmingham, United KingdomHQ recorded Oct 18, 2026	201-500	23 contacts →
	Exact match “UKDN Waterflow (LG) Ltd – Respond \| Report \| Repair As of November 2015 UKDN Waterflow (LG) Ltd was acquired by Lanes Group plc the Largest wholly owned UK Drainage solution…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25	Aquevo	Exact match	London, United KingdomHQ recorded Oct 18, 2026	11-50	21 contacts →
	Exact match “Aquevo Limited, headquartered in North West London, is a leading provider of integrated water management services.” Recorded in the RevenueBase company graph · Oct 18, 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 infrastructure contractors”. 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 181 municipal water infrastructure contractors based in the United Kingdom

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Municipal water infrastructure contractors based in the United Kingdom at a glance

As of Oct 18, 2026

44.0%Verified-email coverage

64.3Average contacts per company

11-50Median size (employees)

6.6%Largest-city concentration · London

Oct 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 181 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 infrastructure contractors” 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 5,124 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 October 18, 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 infrastructure contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 181 company matches for municipal water infrastructure contractors associated with the United Kingdom as of October 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 infrastructure contractors?

London leads with 12 company records, followed by Manchester (4) and Barnsley (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 5,124 professional contacts with verified work emails tracked across these 181 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 October 18, 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.