Company lists · Data refreshed November 2026

Top 22 Hydrological engineering companies based in the United Kingdom

RevenueBase identified 400 company matches for hydrological engineering companies associated with the United Kingdom as of November 2026 and tracks 8,972 professional contacts across them, including 3,766 with verified work emails. London is the largest hub.

This list covers company matches for hydrological engineering companies 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
400Companies
8,972Contacts tracked
3,766Verified emails
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The 22 largest hydrological engineering companies based in the United Kingdom

Ranked by team size
Top 22 of 400 company matches for hydrological engineering companies 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 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
2Exact 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
3Exact matchClevedon, United KingdomHQ recorded Nov 6, 2026201-500200 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAmersham, United KingdomHQ recorded Nov 6, 202651-200178 contacts →

Exact match

“With over 40 years experience JNP Group deliver highly professional, integrated efficient design and consultancy solutions from inception to completion, irrespective of project…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchCardiff Road, United KingdomHQ recorded Nov 6, 2026201-500166 contacts →

Exact match

“We’re envolve, specialist civil engineers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSmall Dole, United KingdomHQ recorded Nov 6, 202651-200128 contacts →

Exact match

“Mackley provides a comprehensive range of services from conception through construction to project delivery.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGuildford, United KingdomHQ recorded Nov 6, 2026201-500112 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200104 contacts →

Exact match

“Founded in 2005, Ardent Consulting Engineers provide transport and infrastructure planning and engineering advice to the property and land development industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBirkenhead, United KingdomHQ recorded Nov 6, 202651-20099 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchHenley On Thames, United KingdomHQ recorded Nov 6, 202651-20096 contacts →

Exact match

“Simpson TWS is a successful civil and structural engineering consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20089 contacts →

Exact match

“Metis is an Employee-Owned civil and environmental engineering consultancy, with offices in London and Manchester.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchOmagh, United KingdomHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“The Adman group of companies is a leading provider of civil engineering and construction services with a proven track record of service delivery for both public and private sector…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchShefford, United KingdomHQ recorded Nov 6, 2026201-50073 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchRuthin, United KingdomHQ recorded Nov 6, 202611-5065 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 · Nov 6, 2026 · View company records in RevenueBase
15Exact matchKings Langley, United KingdomHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAshbourne, United KingdomHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“We have been delivering innovative, cost-effective, sustainable civil engineering services to our customers since 1977.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMaghera, United KingdomHQ recorded Nov 6, 202651-20056 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 · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBarnsley, United KingdomHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“Founded in 1860, Qualter Hall owns a continuous history of engineering excellence in the UK and internationally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchEast Malling, United KingdomHQ recorded Nov 6, 202611-5049 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchWestminster, United KingdomHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“Beckett Rankine is the UK's leading maritime engineering consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Nov 6, 202611-5045 contacts →

Exact match

“RWO is a multidisciplinary engineering consultancy delivering civil, structural, geotechnical and geoenvironmental solutions across the UK and internationally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchRadstock, United KingdomHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“BIMTek Limited is an established engineering practice in the South West, offering professional survey and design services primarily in the water, wastewater and construction…”

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

Showing 22 of 400 hydrological engineering companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 3,766 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrological engineering companies based in the United Kingdom at a glance

As of Nov 6, 2026
42.0%Verified-email coverage
22.4Average contacts per company
1-10Median size (employees)
9.5%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
210
11-50
125
51-200
35
201-500
11
501-1,000
2
1,001-5,000
6
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 400 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 “hydrological engineering companies” 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 3,766 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.

Hydrological engineering companies by metro

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 “hydrological engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrological engineering companies are there based in the United Kingdom?

RevenueBase identified 400 company matches for hydrological engineering companies 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?

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

Which city has the most hydrological engineering companies?

London leads with 38 company records, followed by Manchester (11) and Bristol (10).

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 3,766 professional contacts with verified work emails tracked across these 400 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.