Company lists · Data refreshed November 2026

Top 25 Decentralized wastewater system installers based in the United Kingdom

RevenueBase identified 80 company matches for decentralized wastewater system installers associated with the United Kingdom as of November 2026 and tracks 948 professional contacts across them, including 338 with verified work emails. Coventry is the largest hub.

This list covers company matches for decentralized wastewater 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 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
80Companies
948Contacts tracked
338Verified emails
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The 25 largest decentralized wastewater system installers based in the United Kingdom

Ranked by team size
Top 25 of 80 company matches for decentralized wastewater system installers 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 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
2Exact matchMonmouth, United KingdomHQ recorded Nov 6, 202651-20087 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact 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
4Exact 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
5Exact 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
6Exact matchAylesbury, United KingdomHQ recorded Nov 6, 202651-20027 contacts →

Exact match

“KEE KEE is a globally recognised brand operating within in the industrial, commercial and domestic wastewater treatment industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBishop Auckland, United KingdomHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“RA Dalton are a thriving family business and undertake projects throughout the whole of the UK combining experience and expertise in the installation and maintenance of Klargester…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBurton Upon Trent, United KingdomHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“WE ARE SERIOUS.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBraintree, United KingdomHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Providing expert solutions for both residential and commercial environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchAlton, United KingdomHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Plantwork Systems Ltd (PWS) provides water and wastewater treatment solutions with a strong focus on sustainability, innovation and cost efficiency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNewry, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Viltra specialises in designing, manufacturing and installing wastewater treatment solutions for a wide range of sectors throughout the UK and Ireland, including domestic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchOakstown, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“O'Reilly Oakstown provides an environmentally responsible wastewater treatment solution for both homes and businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHigh Wycombe Bucks, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“ESMIL Process Systems is an award winning Construction company located in United Kingdom.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHinckley, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Evergreen Water Solutions works closely with a number of international engineering companies whose expertise is in scalable wastewater treatment systems and containerised…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNewry, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Water Tecnik specialises in delivering practical, compliant, and cost-effective industrial wastewater and effluent treatment solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHeanor, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“We have been specialized in waste water management for over 20 years and offer a full range of services including sales of sewage treatment systems, pump stations and a wide range…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPotters Bar, United KingdomHQ recorded Nov 6, 202651-2007 contacts →

Exact match

“Over 25 years on site experience in waste water management What we cover: Treatment Plant Installations Pumping Station Installations Sump Pump Installations CCTV Surveys High…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMelton Mowbray, United KingdomHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Kirton design and build state-of-the-art solutions that help industrial, commercial and domestic clients use water safely, more efficiently and in compliance with ever increasing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGuildford, United KingdomHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Tech Environment UK Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHexham, United KingdomHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Hutchinson have been in business for 40 years designing, Installing, Supplying and Maintaining all types of sewage treatment plants, septic tanks, rainwatering harvesting units…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchExeter, United KingdomHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Sewage & Waste Water Treatment Engineers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchPerranwell Station, United KingdomHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Premier Water Solutions 10 Ltd is a specialist wastewater and environmental services company, delivering design, installation and long-term compliance solutions across the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLouth, United KingdomHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Agriteck Laboratories is an independent, family-run industrial wastewater treatment and chemical supply specialist with over 50 years of combined experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSwansea, United KingdomHQ recorded Nov 6, 202611-502 contacts →

Exact match

“We are engineers, designing and installing pumping systems and treatment works.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCoatbridge, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“We provide Expert Advice and Guidance on all aspects of Septic Tanks and Sewage Treatment Plant Systems.”

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

Showing 25 of 80 decentralized wastewater system installers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 338 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Decentralized wastewater system installers based in the United Kingdom at a glance

As of Nov 6, 2026
35.7%Verified-email coverage
11.8Average contacts per company
11-50Median size (employees)
3.8%Largest-city concentration · Coventry
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
32
51-200
8
201-500
1
1,001-5,000
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 80 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 “decentralized wastewater 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 338 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 “decentralized wastewater system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 80 company matches for decentralized wastewater system installers 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?

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

Which city has the most decentralized wastewater system installers?

Coventry leads with 3 company records, followed by Newry (3) and Hemel Hempstead (2).

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 338 professional contacts with verified work emails tracked across these 80 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.