Company lists · Data refreshed November 2026

Top 23 Water infrastructure engineering consultants based in the United Kingdom

RevenueBase identified 1,539 company matches for water infrastructure engineering consultants associated with the United Kingdom as of November 2026 and tracks 61,138 professional contacts across them, including 20,531 with verified work emails. London is the largest hub.

This list covers company matches for water infrastructure engineering consultants 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 November 6, 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 Nov 6, 2026 How this list was built
1,539Companies
61,138Contacts tracked
20,531Verified emails
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The 23 largest water infrastructure engineering consultants based in the United Kingdom

Ranked by team size
Top 23 of 1,539 company matches for water infrastructure engineering consultants based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 20261,001-5,0004,013 contacts →

Exact match

“Costain helps to improve people’s lives by creating connected, sustainable infrastructure that enables people and the planet thrive.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAbingdon, United KingdomHQ recorded Nov 6, 20265,001-10,0003,964 contacts →

Exact match

“Founded in 1970, RPS is part of Tetra Tech, a leading global provider of consulting and engineering services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0003,366 contacts →

Exact match

“Murphy is a leading international, multi-disciplined engineering and construction company founded in 1951 that improves life by delivering world-class infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0001,172 contacts →

Exact match

“Faithful+Gould is now AtkinsRéalis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSevenoaks, United KingdomHQ recorded Nov 6, 20261,001-5,0001,053 contacts →

Exact match

“FM Conway is a leading infrastructure services company delivering vital services in transportation, the built environment and open spaces for communities and businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchStockport, United KingdomHQ recorded Nov 6, 20261,001-5,000971 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBarnsley, United KingdomHQ recorded Nov 6, 20261,001-5,000871 contacts →

Exact match

“Who are we?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchWatford, United KingdomHQ recorded Nov 6, 2026501-1,000727 contacts →

Exact match

“Engineering sustainable infrastructure for today and tomorrow.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWarrington, United KingdomHQ recorded Nov 6, 20261,001-5,000701 contacts →

Exact match

“We are BGEN- part of M Group.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchChesterton, United KingdomHQ recorded Nov 6, 2026501-1,000667 contacts →

Exact match

“Dalcour Maclaren: delivering land, stakeholder and environmental solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchEsher, United KingdomHQ recorded Nov 6, 2026501-1,000654 contacts →

Exact match

“Tony Gee is an award winning firm that provides specialist engineering consultancy services to the construction industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,000607 contacts →

Exact match

“Waterman Group is a multidisciplinary consultancy providing sustainable solutions to meet the planning, engineering design and project delivery needs of the property…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBelfast, United KingdomHQ recorded Nov 6, 2026501-1,000602 contacts →

Exact match

“Farrans is a leading civil engineering and building contractor which specialises in innovative and sustainable solutions for the water, energy, aviation, transportation, marine…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPreston, United KingdomHQ recorded Nov 6, 2026501-1,000548 contacts →

Exact match

“As part of the €6.6 billion VolkerWessels group, VolkerStevin provides complex engineering solutions to the water, energy, marine infrastructure, flood and coastal protection…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchGlasgow, United KingdomHQ recorded Nov 6, 2026201-500467 contacts →

Exact match

“Welcome to Fairhurst: Fairhurst is a Limited Liability Partnership (LLP) of Consulting Engineers practicing in the UK, employing circa 400 staff in 16 principal offices.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAbergavenny, United KingdomHQ recorded Nov 6, 2026201-500426 contacts →

Exact match

“Welcome to / Croeso i Griffiths We are a sustainable civil engineering contractor that helps connect communities through road, rail, water, and utilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNottingham, United KingdomHQ recorded Nov 6, 2026201-500396 contacts →

Exact match

“CREATING PLACES FOR EVERYONE, PRESERVING OUR PLANET FOR ALL BWB Consulting is a leading UK integrated consultancy that delivers well-considered engineering, environmental, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,000385 contacts →

Exact match

“Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGlasgow, United KingdomHQ recorded Nov 6, 2026201-500382 contacts →

Exact match

“A self-delivery design and build partner supplying sustainable solutions to the water sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBamber Bridge, United KingdomHQ recorded Nov 6, 20261,001-5,000342 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 · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCoventry, United KingdomHQ recorded Nov 6, 20261,001-5,000310 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 · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWorcester, United KingdomHQ recorded Nov 6, 202651-200254 contacts →

Exact match

“VolkerLaser is the UK's leading multi-functional contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000249 contacts →

Exact match

“Supported by a network of specialist consulting engineers, environmentalists and our own collective experience, our philosophy is simple: to provide a qualitative economic and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 23 of 1,539 water infrastructure engineering consultants based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 20,531 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water infrastructure engineering consultants based in the United Kingdom at a glance

As of Nov 6, 2026
33.6%Verified-email coverage
39.7Average contacts per company
11-50Median size (employees)
12.0%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
703
11-50
485
51-200
201
201-500
54
501-1,000
15
1,001-5,000
24
5,001-10,000
3
10001+
4

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 1,539 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 infrastructure engineering consultants” 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 20,531 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 November 6, 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 infrastructure engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water infrastructure engineering consultants are there based in the United Kingdom?

RevenueBase identified 1,539 company matches for water infrastructure engineering consultants associated with the United Kingdom as of November 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?

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

Which city has the most water infrastructure engineering consultants?

London leads with 184 company records, followed by Manchester (37) and Bristol (28).

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 20,531 professional contacts with verified work emails tracked across these 1,539 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 November 6, 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.