Company lists · Data refreshed September 2026

Top 25 Water system maintenance contractors based in the United Kingdom

Name: Water system maintenance 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 19, 2026 317 companies tracked

RevenueBase identified 317 company matches for water system maintenance contractors associated with the United Kingdom as of September 2026 and tracks 5,862 professional contacts across them, including 1,714 with verified work emails. London is the largest hub.

This list covers company matches for water system maintenance 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 19, 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 19, 2026 How this list was built

317Companies

5,862Contacts tracked

1,714Verified emails

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The 25 largest water system maintenance contractors based in the United Kingdom

Ranked by team size

Top 25 of 317 company matches for water system maintenance contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	Lanes Group	Exact match	Leeds, United KingdomHQ recorded Sep 19, 2026	1,001-5,000	1,219 contacts →
	Exact match “Lanes Group is a leading provider of specialist drainage, utility, and asset maintenance services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Team, Inc. Uk, Africa, Caspian	Exact match	Kendal, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
3	Sapphire Utility Solutions LTD	Exact match	Bamber Bridge, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
4	Enterprise PLC	Exact match	Leyland, United KingdomHQ recorded Sep 19, 2026	10001+	306 contacts →
	Exact match “Enterprise was acquired by Amey in 2013, please visit http://ow.ly/KxJYY to view all the latest news and job alerts from Amey.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Onsite Central Limited	Exact match	Worcester, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
6	Hydrosave UK LTD	Exact match	Kettering, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
7	Utilitec Services	Exact match	Wirksworth, United KingdomHQ recorded Sep 19, 2026	201-500	162 contacts →
	Exact match “Utilitec Services have provided niche operational support to the UK Water and Gas Industry since 1997.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Severn Trent Services	Exact match	Coventry, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
9	Metcor Environmental	Exact match	Gravesend, United KingdomHQ recorded Sep 19, 2026	51-200	86 contacts →
	Exact match “Metcor Environmental is one of the UK’s leading commercial drainage, plumbing and pump engineering firms.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	GEL Engineering	Exact match	Enfield, United KingdomHQ recorded Sep 19, 2026	51-200	70 contacts →
	Exact match “Welcome to Gel Engineering.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	IWS Mechanical & Electrical	Exact match	Walsall, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
12	Glanville Environmental	Exact match	Ivybridge, United KingdomHQ recorded Sep 19, 2026	201-500	64 contacts →
	Exact match “Glanville Environmental help commercial infrastructure owners reduce pollution and flood risk by inspecting and maintaining ageing drainage systems and installing new…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Willow Pumps Limited	Exact match	Kent, United KingdomHQ recorded Sep 19, 2026	51-200	63 contacts →
	Exact match “Willow Pumps provide expert services for all your pump, drainage, waste and clean water needs.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	MKE Engineering Group	Exact match	Sittingbourne, United KingdomHQ recorded Sep 19, 2026	51-200	63 contacts →
	Exact match “MKE Engineering (Mid Kent Electrical) is the largest independent engineering service provider of its kind in the South East, operating from 3 different sites covering Kent…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Deritend	Exact match	Wolverhampton, United KingdomHQ recorded Sep 19, 2026	51-200	58 contacts →
	Exact match “We are one of the UK’s fastest growing in and most dynamic maintenance services organisations, encompassing several specialist engineering operations within the group.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	J A Brooks	Exact match	London, United KingdomHQ recorded Sep 19, 2026	201-500	55 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 · Sep 19, 2026 · View company records in RevenueBase
17	Guardian Water Treatment Marlowe Environmental Services	Exact match	Basildon, United KingdomHQ recorded Sep 19, 2026	51-200	50 contacts →
	Exact match “Guardian part of Marlowe Environmental Services, delivers a range of water treatment and air quality services, allowing the systems that rely on these elements to work effectively…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	T-T Pumps LTD	Exact match	Woore, United KingdomHQ recorded Sep 19, 2026	51-200	49 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Hydro International UK Wastewater Services	Exact match	Portland, United KingdomHQ recorded Sep 19, 2026	201-500	45 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 19, 2026 · View company records in RevenueBase
20	Plumbing & GAS Solutions LTD	Exact match	Milton Keynes, United KingdomHQ recorded Sep 19, 2026	11-50	41 contacts →
	Exact match “Plumbing & Gas Solutions Ltd are a Constructionline and CHAS accredited Commercial Plumbing & Heating contractor based in Milton Keynes.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Veriflo Limited	Exact match	East Malling, United KingdomHQ recorded Sep 19, 2026	11-50	39 contacts →
	Exact match “Veriflo Ltd - a professional strategic project management company, specialising in clean water asset services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Synthotech Limited	Exact match	Harrogate, United KingdomHQ recorded Sep 19, 2026	11-50	36 contacts →
	Exact match “Leading the way in innovative engineering solutions for the global utility market, including in-pipe CCTV systems, leak detection, and in-pipe robotics.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Panton Mcleod	Exact match	Selkirk, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
24	Servitech International Limited	Exact match	Wilstead, United KingdomHQ recorded Sep 19, 2026	51-200	34 contacts →
	Exact match “Servitech International is a privately owned, independant company that has been providing maintenance, support, supply and installation services for all water, waste water and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Aquam Water Services	Exact match	Derby, United KingdomHQ recorded Sep 19, 2026	51-200	32 contacts →
	Exact match “Aquam Corporation provides pipeline infrastructure services and technologies to owners and operators of water and gas networks.” Recorded in the RevenueBase company graph · Sep 19, 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 “water system maintenance 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 317 water system maintenance contractors based in the United Kingdom

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Water system maintenance contractors based in the United Kingdom at a glance

As of Sep 19, 2026

29.2%Verified-email coverage

18.5Average contacts per company

11-50Median size (employees)

6.0%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

138

11-50

119

51-200

201-500

501-1,000

1,001-5,000

10001+

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 317 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 “water system maintenance 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 1,714 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 19, 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 “water system maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water system maintenance contractors are there based in the United Kingdom?

RevenueBase identified 317 company matches for water system maintenance 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?

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

Which city has the most water system maintenance contractors?

London leads with 19 company records, followed by Leeds (6) and Rotherham (6).

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 1,714 professional contacts with verified work emails tracked across these 317 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 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 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.