Company lists · Data refreshed September 2026

Top 25 Industrial water infrastructure contractors based in the United Kingdom

Name: Industrial 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 Sep 17, 2026 494 companies tracked

RevenueBase identified 494 company matches for industrial water infrastructure contractors associated with the United Kingdom as of September 2026 and tracks 23,413 professional contacts across them, including 8,912 with verified work emails. London is the largest hub.

This list covers company matches for industrial 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 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

494Companies

23,413Contacts tracked

8,912Verified emails

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

Ranked by team size

Top 25 of 494 company matches for industrial water infrastructure contractors 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	Pentair	Exact match	London, United KingdomHQ recorded Sep 17, 2026	5,001-10,000	6,636 contacts →
	Exact match “At Pentair, we help the world sustainably move, improve, and enjoy water, life’s most essential resource.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	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
3	MWH Treatment	Exact match	Stockport, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	879 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 · Sep 17, 2026 · View company records in RevenueBase
4	Binnies	Exact match	Redhill, United KingdomHQ recorded Sep 17, 2026	501-1,000	842 contacts →
	Exact match “Together with our strategic partners, we can address everything from supporting vulnerable customers, water quality, asset performance and leak detection, to integrated planning…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Selwood LTD	Exact match	Eastleigh, United KingdomHQ recorded Sep 17, 2026	501-1,000	477 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 · Sep 17, 2026 · View company records in RevenueBase
6	Team, Inc. Uk, Africa, Caspian	Exact match	Kendal, United KingdomHQ recorded Sep 17, 2026	201-500	455 contacts →
	Exact match “TEAM is a leading industrial services company offering an array of specialized services related to the construction, maintenance, and monitoring of pressurized piping and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	WGM Engineering LTD	Exact match	Glasgow, United KingdomHQ recorded Sep 17, 2026	201-500	329 contacts →
	Exact match “A self-delivery design and build partner supplying sustainable solutions to the water sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Sapphire Utility Solutions LTD	Exact match	Bamber Bridge, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	324 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 · Sep 17, 2026 · View company records in RevenueBase
9	Eric Wright Water LTD	Exact match	Preston, United KingdomHQ recorded Sep 17, 2026	201-500	193 contacts →
	Exact match “Eric Wright Water Ltd (part of the Eric Wright Group) is a multi-disciplinary engineering and construction company working in the water and wastewater industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Onsite Central Limited	Exact match	Worcester, United KingdomHQ recorded Sep 17, 2026	201-500	178 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 · Sep 17, 2026 · View company records in RevenueBase
11	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
12	Laker Vent Engineering Limited	Exact match	Ellesmere Port, United KingdomHQ recorded Sep 17, 2026	201-500	175 contacts →
	Exact match “Piping and Mechanical contractors for the, Nuclear, Power, Energy from Waste, Pharmaceutical, Food, Brewing, Chemical, Agrochemical, Oil & Gas, Healthcare & Aerospace process…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Hydro International	Exact match	Clevedon, United KingdomHQ recorded Sep 17, 2026	201-500	166 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 · Sep 17, 2026 · View company records in RevenueBase
14	Hydrosave UK LTD	Exact match	Kettering, United KingdomHQ recorded Sep 17, 2026	201-500	164 contacts →
	Exact match “We are a leading specialist pipeline inspection, leak detection, valve maintenance and water audit company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	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
16	Envolve Infrastructure	Exact match	Cardiff Road, United KingdomHQ recorded Sep 17, 2026	201-500	136 contacts →
	Exact match “We’re envolve, specialist civil engineers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Enpure	Exact match	Birmingham, United KingdomHQ recorded Sep 17, 2026	51-200	113 contacts →
	Exact match “Enpure is a process engineering company specializing in water, wastewater and sludge treatment as well as waste-to-energy solutions with a global presence.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Alumasc Water Management Solutions	Exact match	Kettering, United KingdomHQ recorded Sep 17, 2026	51-200	112 contacts →
	Exact match “AWMS, part of Alumasc Group, is the first joined-up brand in integrated water management.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Doocey Group	Exact match	Tipton, United KingdomHQ recorded Sep 17, 2026	201-500	105 contacts →
	Exact match “Doocey Group Utility Infrastructure Contractor operating nationally in the construction Industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	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
21	Envirogen Group	Exact match	Alfreton, United KingdomHQ recorded Sep 17, 2026	201-500	75 contacts →
	Exact match “Envirogen Group is a global leader in industrial water treatment and process filtration solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Siltbuster LTD	Exact match	Monmouth, United KingdomHQ recorded Sep 17, 2026	51-200	75 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Richard Alan	Exact match	Dewsbury, United KingdomHQ recorded Sep 17, 2026	51-200	74 contacts →
	Exact match “Established in 1970, the West Yorkshire-based Richard Alan Group is a portfolio of businesses providing high-quality Engineering Design, Manufacture, Installation and Servicing to…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	GEL Engineering	Exact match	Enfield, United KingdomHQ recorded Sep 17, 2026	51-200	70 contacts →
	Exact match “Welcome to Gel Engineering.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	IWS Mechanical & Electrical	Exact match	Walsall, United KingdomHQ recorded Sep 17, 2026	51-200	68 contacts →
	Exact match “Integrated Water Services M&E is an established Principle Contractor and Designer within the MEICA Process sector, specialising in pump diagnostics and refurbishment, turn-key…” 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 “industrial 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 494 industrial water infrastructure contractors based in the United Kingdom

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

As of Sep 17, 2026

38.1%Verified-email coverage

47.4Average contacts per company

11-50Median size (employees)

4.7%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

190

11-50

180

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 494 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 “industrial 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 8,912 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 “industrial water infrastructure contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 494 company matches for industrial water infrastructure contractors 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?

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

Which city has the most industrial water infrastructure contractors?

London leads with 23 company records, followed by Manchester (11) and Birmingham (8).

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 8,912 professional contacts with verified work emails tracked across these 494 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.