Company lists · Data refreshed October 2026

Top 25 Flood control engineering firms based in the United Kingdom

RevenueBase identified 109 company matches for flood control engineering firms associated with the United Kingdom as of October 2026 and tracks 1,185 professional contacts across them, including 549 with verified work emails. London is the largest hub.

This list covers company matches for flood control engineering 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 October 12, 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 Oct 12, 2026 How this list was built
109Companies
1,185Contacts tracked
549Verified emails
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The 25 largest flood control engineering firms based in the United Kingdom

Ranked by team size
Top 25 of 109 company matches for flood control engineering firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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 matchClevedon, United KingdomHQ recorded Oct 12, 2026201-500195 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 · Oct 12, 2026 · View company records in RevenueBase
2Exact matchGuildford, United KingdomHQ recorded Oct 12, 2026201-500107 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3Exact matchShefford, United KingdomHQ recorded Oct 12, 2026201-50071 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 · Oct 12, 2026 · View company records in RevenueBase
4Exact matchRuthin, United KingdomHQ recorded Oct 12, 202611-5064 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 · Oct 12, 2026 · View company records in RevenueBase
5Exact matchAshbourne, United KingdomHQ recorded Oct 12, 202651-20056 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 · Oct 12, 2026 · View company records in RevenueBase
6Exact matchThetford, United KingdomHQ recorded Oct 12, 202611-5035 contacts →

Exact match

“River restoration and erosion control specialists Salix provide sustainable solutions to the challenges found in soil erosion control and river restoration projects.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7Exact matchPort Talbot, United KingdomHQ recorded Oct 12, 202611-5031 contacts →

Exact match

“MM Engineering is a team of industry experts driven by a passion to provide flood defence products of the highest quality.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8Exact matchShipston On Stour, United KingdomHQ recorded Oct 12, 202611-5029 contacts →

Exact match

“Measurement experts who use innovation to understand river functions and provide knowledge to inform projects that reduce flooding and improve natural habitats.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Oct 12, 202611-5028 contacts →

Exact match

“Aegaea provides expertise in water, civils and environment including discharge of conditions for outline and full planning.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10Exact matchBurgess Hill, United KingdomHQ recorded Oct 12, 202611-5027 contacts →

Exact match

“GTA Civils & Transport is a multi-disciplinary engineering company providing Civil Engineering Design, Transport Planning and Flood Risk services to clients throughout the UK and…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11Exact matchBangor, United KingdomHQ recorded Oct 12, 202611-5026 contacts →

Exact match

“Watertight International Ltd is an approved Government Framework contractor.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12Exact matchAltrincham, United KingdomHQ recorded Oct 12, 202611-5022 contacts →

Exact match

“Gravitas International are UK based manufacturers and distributors of unique and innovative products for the Water & Environmental Sector.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13Exact matchMiddlesbrough, United KingdomHQ recorded Oct 12, 202611-5019 contacts →

Exact match

“Lynas Engineers provides a modern and personal approach to engineering design.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14Exact matchEdinburgh, United KingdomHQ recorded Oct 12, 20261-1016 contacts →

Exact match

“Kaya Consulting Limited is Flood Risk Management company based in Edinburgh”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15Exact matchBreamore, United KingdomHQ recorded Oct 12, 202611-5014 contacts →

Exact match

“Simon Cain founded the company Cain Bio-Engineering in 2003 with the aim of restoring aquatic environments to a state of optimal biodiversity.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16Exact matchKirkby In Ashfield, United KingdomHQ recorded Oct 12, 202651-20012 contacts →

Exact match

“Welcome to Alliance Group Solutions Limited.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17Exact matchBristol, United KingdomHQ recorded Oct 12, 202611-5011 contacts →

Exact match

“Tumu Consulting Ltd is a growing civil engineering consultancy based in Bristol providing infrastructure design, flood risk and sustainable drainage design services for…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18Exact matchCrawley, United KingdomHQ recorded Oct 12, 20261-1011 contacts →

Exact match

“Unda is a specialist provider of Flood Risk Assessments (FRAs) and Drainage Assessments that support our diverse range of clients to gain planning approval, understand insurance…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Oct 12, 20261-1011 contacts →

Exact match

“We are Consulting Engineers with a wealth of experience in Sustainable Urban Drainage systems, Flood Risk and Consequence Assessments, as well Surface Water Management Schemes.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20Exact matchMusselburgh, United KingdomHQ recorded Oct 12, 202611-5010 contacts →

Exact match

“CPE Consultancy is an award-winning consultancy delivering tailored project management and multidisciplinary services to both public and private sector clients.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21Exact matchCanterbury, United KingdomHQ recorded Oct 12, 202611-5010 contacts →

Exact match

“Herrington Consulting was acquired by EPS Ltd.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22Exact matchTruro, United KingdomHQ recorded Oct 12, 20261-108 contacts →

Exact match

“We are a small engineering consultancy business based in Truro, Cornwall.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23Exact matchHermitage Lane Maidstone, United KingdomHQ recorded Oct 12, 202611-508 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24Exact matchNewton Abbot, United KingdomHQ recorded Oct 12, 20261-108 contacts →

Exact match

“Welcome to Marine and Civil Solutions, a civil engineering company based in the South West.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25Exact matchStaplefield, United KingdomHQ recorded Oct 12, 202611-507 contacts →

Exact match

“Richard Allitt Associates is a leading provider of hydraulic engineering and flood risk consultancy for the urban drainage industry.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

Showing 25 of 109 flood control engineering firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 549 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Flood control engineering firms based in the United Kingdom at a glance

As of Oct 12, 2026
46.3%Verified-email coverage
10.9Average contacts per company
1-10Median size (employees)
6.4%Largest-city concentration · London
Oct 12, 2026Page data refreshed

Companies by employee count

1-10
65
11-50
37
51-200
3
201-500
3
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 109 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 “flood control engineering 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 549 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 October 12, 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 “flood control engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many flood control engineering firms are there based in the United Kingdom?

RevenueBase identified 109 company matches for flood control engineering firms associated with the United Kingdom as of October 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?

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

Which city has the most flood control engineering firms?

London leads with 7 company records, followed by Bristol (4) and Cheltenham (3).

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 549 professional contacts with verified work emails tracked across these 109 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 October 12, 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.