Company lists · Data refreshed November 2026

Top 25 Sanitary engineering companies based in the United Kingdom

RevenueBase identified 282 company matches for sanitary engineering companies associated with the United Kingdom as of November 2026 and tracks 8,868 professional contacts across them, including 3,542 with verified work emails. London is the largest hub.

This list covers company matches for sanitary 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
282Companies
8,868Contacts tracked
3,542Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest sanitary engineering companies based in the United Kingdom

Ranked by team size
Top 25 of 282 company matches for sanitary 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 matchCardiff, United KingdomHQ recorded Nov 6, 20261,001-5,0001,970 contacts →

Exact match

“Bath-times, half-times, party-times, meeting-times, and cooking-times.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact 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
4Exact matchCroydon, United KingdomHQ recorded Nov 6, 2026201-500256 contacts →

Exact match

“Founded in we are one of London’s and Southeast's leading providers of environmental and waste management services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchWimbledon, United KingdomHQ recorded Nov 6, 2026501-1,000219 contacts →

Exact match

“You have probably benefitted from a service we have helped fix, build or maintain if you live or have visited the southern region of the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact matchPreston, United KingdomHQ recorded Nov 6, 2026201-500198 contacts →

Exact match

“Eric Wright Water Ltd (part of the Eric Wright Group) is a multi-disciplinary engineering and construction company working in the water and wastewater industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact 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
9Exact matchBirmingham, United KingdomHQ recorded Nov 6, 202651-200114 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchEnfield, United KingdomHQ recorded Nov 6, 202651-20084 contacts →

Exact match

“Welcome to Gel Engineering.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-50075 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchKent, United KingdomHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“Willow Pumps provide expert services for all your pump, drainage, waste and clean water needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact 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
14Exact matchBury St Edmunds, United KingdomHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“From it’s inception in November 1994, Claret Civil Engineering has expanded to become a leading Tier 1 and Tier 2 contractor operating across a range of sectors including clean…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchIvybridge, United KingdomHQ recorded Nov 6, 2026201-50062 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact matchStepps, United KingdomHQ recorded Nov 6, 2026201-50055 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 · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWakefield, United KingdomHQ recorded Nov 6, 2026201-50046 contacts →

Exact match

“Peter Duffy Limited is a civil engineering, construction, utilities and plant hire company with a proven track record for quality and service since the company’s formation in 1972.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMaidstone, United KingdomHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“ATAC Solutions Ltd is a leading UK environmental services company specialising in wastewater services and wastewater equipment on a capital purchase or hire basis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPaignton, United KingdomHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“KWC DVS becomes DELABIE DVS In 2025, DELABIE Group acquired KWC Professional, strengthening its position as a pan-European leader in sanitary equipment for public and commercial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBury, United KingdomHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Water engineering Services Ltd is an electrical and mechanical engineering and installations company with employed electrical and mechanical engineers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBrackley, United KingdomHQ recorded Nov 6, 2026201-50032 contacts →

Exact match

“Welcome to Agetur UK Agetur UK Limited is one of the leading civil engineering companies in the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchStockton-on-tees, United KingdomHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“JH Mechanical Services is a leading provider of mechanical, electrical and water management services across the North of England.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBromsgrove, United KingdomHQ recorded Nov 6, 202651-20031 contacts →

Exact match

“Watertight Management has established itself as a leader in the provision of Clean and Waste water management services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchGloucester, United KingdomHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“At WCSEE we collaborate closely with our clients to design and deliver reliable, robust, and future-proofed wastewater systems tailored to site specific requirements.”

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

Showing 25 of 282 sanitary engineering companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 3,542 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Sanitary engineering companies based in the United Kingdom at a glance

As of Nov 6, 2026
39.9%Verified-email coverage
31.4Average contacts per company
11-50Median size (employees)
4.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
107
11-50
103
51-200
39
201-500
14
501-1,000
5
1,001-5,000
6

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 282 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 “sanitary 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 3,542 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 “sanitary engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 282 company matches for sanitary 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?

DŴR Cymru Welsh Water tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most sanitary engineering companies?

London leads with 13 company records, followed by Manchester (9) and Glasgow (5).

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 3,542 professional contacts with verified work emails tracked across these 282 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.

Ready to reach these companies? Verified emails and direct dials for all 282 sanitary engineering companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.