Company lists · Data refreshed September 2026

Top 25 Water management consulting firms based in the United Kingdom

RevenueBase identified 389 company matches for water management consulting firms associated with the United Kingdom as of September 2026 and tracks 12,714 professional contacts across them, including 4,546 with verified work emails. London is the largest hub.

This list covers company matches for water management consulting firms 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 21, 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 21, 2026 How this list was built
389Companies
12,714Contacts tracked
4,546Verified emails
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The 25 largest water management consulting firms based in the United Kingdom

Ranked by team size
Top 25 of 389 company matches for water management consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 21, 20265,001-10,0006,636 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 21, 2026 · View company records in RevenueBase
2Exact matchRedhill, United KingdomHQ recorded Sep 21, 2026501-1,000842 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 21, 2026 · View company records in RevenueBase
3Exact matchSurrey, United KingdomHQ recorded Sep 21, 2026501-1,000178 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 21, 2026 · View company records in RevenueBase
4Exact matchClevedon, United KingdomHQ recorded Sep 21, 2026201-500166 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 21, 2026 · View company records in RevenueBase
5Exact matchCoventry, United KingdomHQ recorded Sep 21, 20261,001-5,000137 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 21, 2026 · View company records in RevenueBase
6Exact matchBirmingham, United KingdomHQ recorded Sep 21, 202651-200113 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 21, 2026 · View company records in RevenueBase
7Exact matchKettering, United KingdomHQ recorded Sep 21, 202651-200112 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 21, 2026 · View company records in RevenueBase
8Exact matchGuildford, United KingdomHQ recorded Sep 21, 2026201-500109 contacts →

Exact match

“Land + Water is more than just a dredging company.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-50103 contacts →

Exact match

“Established in the UK in 1986, MRAG Ltd is a consultancy company dedicated to promoting sustainable use of aquatic resources through sound integrated management policies and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200101 contacts →

Exact match

“Isle’s vision is to be the leading catalyst in water industry transformation through exceptional business insight, technology, and innovative solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchBirkenhead, United KingdomHQ recorded Sep 21, 202651-20090 contacts →

Exact match

“Crowder Consulting provides innovative engineering consultancy services and software solutions to the water industry, specialising in water supply, water distribution and sewer…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchUnited Kingdom & Ireland, United KingdomHQ recorded Sep 21, 2026201-50076 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 21, 2026 · View company records in RevenueBase
13Exact matchAlfreton, United KingdomHQ recorded Sep 21, 2026201-50075 contacts →

Exact match

“Envirogen Group is a global leader in industrial water treatment and process filtration solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchChichester, United KingdomHQ recorded Sep 21, 202651-20073 contacts →

Exact match

“Waterscan is an industry-leading sustainable water management company.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchShefford, United KingdomHQ recorded Sep 21, 2026201-50070 contacts →

Exact match

“Throughout the world ACO branded drainage and surface water management systems are recognised for their innovative design, high quality manufacture, environmental excellence and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchKings Langley, United KingdomHQ recorded Sep 21, 202651-20065 contacts →

Exact match

“Part of the WJ Group, WJ UK offer a complete groundwater control and management service, which encompasses design, installation and maintenance programmes to businesses throughout…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchRuthin, United KingdomHQ recorded Sep 21, 202611-5059 contacts →

Exact match

“Waterco Datrys is a leading consultancy in water and environmental engineering, formed through the merger of Waterco and Datrys in 2024.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchStepps, United KingdomHQ recorded Sep 21, 2026201-50058 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 · Sep 21, 2026 · View company records in RevenueBase
19Exact matchBristol, United KingdomHQ recorded Sep 21, 202651-20051 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 21, 2026 · View company records in RevenueBase
20Exact matchFarnborough, United KingdomHQ recorded Sep 21, 202651-20050 contacts →

Exact match

“ph Water technologies are one of the leading ‘Total Environment Solutions Companies' operating within the UK.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchBanbury, United KingdomHQ recorded Sep 21, 202651-20043 contacts →

Exact match

“Graf UK Ltd was formed following the acquisition of SCP Water Management Ltd by Graf GmbH, the European market leaders in rainwater harvesting.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchEast Malling, United KingdomHQ recorded Sep 21, 202611-5039 contacts →

Exact match

“Veriflo Ltd - a professional strategic project management company, specialising in clean water asset services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchInverness, United KingdomHQ recorded Sep 21, 202611-5036 contacts →

Exact match

“CBEC eco-engineering is a leading UK environmental consultant specialising in the provision of eco-engineering solutions for the aquatic environment.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchNewbury, United KingdomHQ recorded Sep 21, 202611-5036 contacts →

Exact match

“As a world-leading independent consultancy in oil and gas field water management, our team provides on-site fluid sampling, laboratory analysis, specialty monitoring equipment for…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchSelkirk, United KingdomHQ recorded Sep 21, 202611-5035 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 21, 2026 · View company records in RevenueBase

Showing 25 of 389 water management consulting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 4,546 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water management consulting firms based in the United Kingdom at a glance

As of Sep 21, 2026
35.8%Verified-email coverage
32.7Average contacts per company
1-10Median size (employees)
7.7%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
219
11-50
108
51-200
37
201-500
15
501-1,000
5
1,001-5,000
2
5,001-10,000
1

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 389 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 management consulting firms” 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 4,546 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 21, 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 management consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water management consulting firms are there based in the United Kingdom?

RevenueBase identified 389 company matches for water management consulting firms 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 water management consulting firms?

London leads with 30 company records, followed by Manchester (8) and Wallingford (7).

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 4,546 professional contacts with verified work emails tracked across these 389 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 21, 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.