Company lists · Data refreshed October 2026

Top 25 Industrial wastewater treatment system installers based in the United Kingdom

RevenueBase identified 310 company matches for industrial wastewater treatment system installers associated with the United Kingdom as of October 2026 and tracks 6,127 professional contacts across them, including 2,475 with verified work emails. London is the largest hub.

This list covers company matches for industrial wastewater treatment system installers 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 16, 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 16, 2026 How this list was built
310Companies
6,127Contacts tracked
2,475Verified emails
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The 25 largest industrial wastewater treatment system installers based in the United Kingdom

Ranked by team size
Top 25 of 310 company matches for industrial wastewater treatment system installers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 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 matchStockport, United KingdomHQ recorded Oct 16, 20261,001-5,000930 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 · Oct 16, 2026 · View company records in RevenueBase
2Exact matchWolverhampton, United KingdomHQ recorded Oct 16, 202610001+466 contacts →

Exact match

“Industrial solutions since 1919 At NCH, we don’t just sell products-we deliver solutions that keep businesses moving.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
3Exact matchInverness Highlands, United KingdomHQ recorded Oct 16, 2026501-1,000291 contacts →

Exact match

“RSE is a trusted clean water technology company, developing market leading products and solutions for purifying drinking water, recycling wastewater and cleaning water in…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4Exact matchSurrey, United KingdomHQ recorded Oct 16, 2026501-1,000186 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 · Oct 16, 2026 · View company records in RevenueBase
5Exact matchCoventry, United KingdomHQ recorded Oct 16, 20261,001-5,000147 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 · Oct 16, 2026 · View company records in RevenueBase
6Exact matchKettering, United KingdomHQ recorded Oct 16, 202651-200123 contacts →

Exact match

“AWMS, part of Alumasc Group, is the first joined-up brand in integrated water management.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7Exact matchBirmingham, United KingdomHQ recorded Oct 16, 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 · Oct 16, 2026 · View company records in RevenueBase
8Exact matchHorsham, United KingdomHQ recorded Oct 16, 202651-20094 contacts →

Exact match

“ERG is a specialist environmental engineering contractor.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
9Exact matchMoreton, United KingdomHQ recorded Oct 16, 202651-20084 contacts →

Exact match

“Feedwater Ltd is a UK Water Treatment Company, established in 1976 specifically to supply products and services for the treatment of water for steam boilers, cooling towers…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
10Exact matchAlfreton, United KingdomHQ recorded Oct 16, 2026201-50084 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
11Exact matchMonmouth, United KingdomHQ recorded Oct 16, 202651-20083 contacts →

Exact match

“At Siltbuster Ltd, we operate the UK’s largest rental fleet of water treatment systems, setting the industry benchmark for rapid, reliable, and cost-effective solutions.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
12Exact matchEnfield, United KingdomHQ recorded Oct 16, 202651-20080 contacts →

Exact match

“Welcome to Gel Engineering.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
13Exact matchDewsbury, United KingdomHQ recorded Oct 16, 202651-20075 contacts →

Exact match

“Established in 1970, the West Yorkshire-based Richard Alan Group is a portfolio of businesses providing high-quality Engineering Design, Manufacture, Installation and Servicing to…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
14Exact matchWest Bromwich, United KingdomHQ recorded Oct 16, 202651-20072 contacts →

Exact match

“Many of the best known, most respected and reliable brand names in the wastewater industry are part of Jacopa's heritage.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15Exact matchUnited Kingdom & Ireland, United KingdomHQ recorded Oct 16, 2026201-50071 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 · Oct 16, 2026 · View company records in RevenueBase
16Exact matchWarrington, United KingdomHQ recorded Oct 16, 202651-20058 contacts →

Exact match

“Welcome to Advanced Water Technologies: A dedicated water treatment & hygiene specialists focused on providing optimum solutions across a vast array of services, chemicals…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
17Exact matchWoore, United KingdomHQ recorded Oct 16, 202651-20056 contacts →

Exact match

“Established in 1959, T-T started out as a general engineering company before growing to consist of 6 divisions – T-T Pumps, T-T Controls and Automation, T-T Flow Valves, T-T…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
18Exact matchHigh Wycombe, United KingdomHQ recorded Oct 16, 202651-20054 contacts →

Exact match

“Hydrotec is the UK’s leading company in the design and manufacture of water treatment products for the building services industry.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
19Exact matchStepps, United KingdomHQ recorded Oct 16, 2026201-50052 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 · Oct 16, 2026 · View company records in RevenueBase
20Exact matchChippenham, United KingdomHQ recorded Oct 16, 202651-20050 contacts →

Exact match

“HUBER Technology was incorporated in the UK in 1993 as a wholly owned subsidiary of Huber SE- Huber UK & Ireland Limited, the manufacturers of the ROTAMAT range of waste water…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
21Exact matchHuntingdon, United KingdomHQ recorded Oct 16, 202651-20049 contacts →

Exact match

“Alpheus is one of the UK’s leading wastewater management and environmental solutions providers.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Oct 16, 202651-20046 contacts →

Exact match

“Bluewater Bio is an award winning global leader in sustainable water and wastewater treatment.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Oct 16, 202651-20044 contacts →

Exact match

“Hydro Industries.generating clean water Clean Water is a limited natural resource essential for life and economic growth.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
24Exact matchMiddlesbrough, United KingdomHQ recorded Oct 16, 202651-20044 contacts →

Exact match

“Telcoss Limited is a family run business established in 2019.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
25Exact matchTyrone, United KingdomHQ recorded Oct 16, 202651-20043 contacts →

Exact match

“Colloide Engineering Systems are a process engineering company, delivering tailored solutions for clients across many industries including Water and Wastewater, Food & Drink…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase

Showing 25 of 310 industrial wastewater treatment system installers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,475 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial wastewater treatment system installers based in the United Kingdom at a glance

As of Oct 16, 2026
40.4%Verified-email coverage
19.8Average contacts per company
11-50Median size (employees)
3.9%Largest-city concentration · London
Oct 16, 2026Page data refreshed

Companies by employee count

1-10
131
11-50
116
51-200
45
201-500
6
501-1,000
6
1,001-5,000
3
10001+
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 310 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 “industrial wastewater treatment system installers” 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 2,475 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 16, 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 “industrial wastewater treatment system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial wastewater treatment system installers are there based in the United Kingdom?

RevenueBase identified 310 company matches for industrial wastewater treatment system installers 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?

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

Which city has the most industrial wastewater treatment system installers?

London leads with 12 company records, followed by Belfast (5) and Coventry (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 2,475 professional contacts with verified work emails tracked across these 310 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 16, 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.