Company lists · Data refreshed September 2026

Top 25 Sludge treatment companies based in the United Kingdom

Name: Sludge treatment companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 56 companies tracked

RevenueBase identified 56 sludge treatment companies headquartered in the United Kingdom as of September 2026 and tracks 707 professional contacts across them, including 280 with verified work emails. Newry is the largest hub.

This list covers sludge treatment companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

56Companies

707Contacts tracked

280Verified emails

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The 25 largest sludge treatment companies based in the United Kingdom

Ranked by team size

Top 25 of 56 sludge treatment companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sludge treatment companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Severn Trent Services	Indirect evidence	Coventry, United KingdomHQ checked Sep 22, 2026	1,001-5,000	137 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
2	Jacopa Limited	Indirect evidence	West Bromwich, United KingdomHQ checked Sep 22, 2026	51-200	73 contacts →
	Indirect evidence “Many of the best known, most respected and reliable brand names in the wastewater industry are part of Jacopa's heritage.” Source: RevenueBase Database · checked Sep 22, 2026
3	Huber Technology UK & Ireland	Indirect evidence	Chippenham, United KingdomHQ checked Sep 22, 2026	51-200	48 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
4	Atac Solutions LTD	Indirect evidence	Maidstone, United KingdomHQ checked Sep 22, 2026	11-50	44 contacts →
	Indirect evidence “ATAC Solutions Ltd is a leading UK environmental services company specialising in wastewater services and wastewater equipment on a capital purchase or hire basis.” Source: RevenueBase Database · checked Sep 22, 2026
5	KEE	Partial evidence	Aylesbury, United KingdomHQ checked Sep 22, 2026	51-200	21 contacts →
	Partial evidence “KEE KEE is a globally recognised brand operating within in the industrial, commercial and domestic wastewater treatment industries.” Source: RevenueBase Database · checked Sep 22, 2026
6	Serious Waste Management LTD	Indirect evidence	Burton Upon Trent, United KingdomHQ checked Sep 22, 2026	11-50	18 contacts →
	Indirect evidence “WE ARE SERIOUS.” Source: RevenueBase Database · checked Sep 22, 2026
7	Countyclean Environmental Services	Indirect evidence	Eastbourne, United KingdomHQ checked Sep 22, 2026	11-50	16 contacts →
	Indirect evidence “CountyClean Environmental Services delivers specialist waste management and environmental services to support critical infrastructure, industry and commercial operations across…” Source: RevenueBase Database · checked Sep 22, 2026
8	MSE Hiller	Partial evidence	Chesterfield, United KingdomHQ checked Sep 22, 2026	11-50	16 contacts →
	Partial evidence “We are a UK leader in the supply, installation, service and rental of centrifuges and sludge dewatering equipment.” Source: RevenueBase Database · checked Sep 22, 2026
9	Esmil Process Systems	Indirect evidence	High Wycombe Bucks, United KingdomHQ checked Sep 22, 2026	1-10	12 contacts →
	Indirect evidence “ESMIL Process Systems is an award winning Construction company located in United Kingdom.” Source: RevenueBase Database · checked Sep 22, 2026
10	Evergreen Water Solutions LTD	Partial evidence	Hinckley, United KingdomHQ checked Sep 22, 2026	11-50	10 contacts →
	Partial evidence “Evergreen Water Solutions works closely with a number of international engineering companies whose expertise is in scalable wastewater treatment systems and containerised…” Source: RevenueBase Database · checked Sep 22, 2026
11	Water Tecnik LTD	Partial evidence	Newry, United KingdomHQ checked Sep 22, 2026	11-50	10 contacts →
	Partial evidence “Water Tecnik specialises in delivering practical, compliant, and cost-effective industrial wastewater and effluent treatment solutions.” Source: RevenueBase Database · checked Sep 22, 2026
12	The Maltings Organic Treatment LTD	Partial evidence	South Milford, United KingdomHQ checked Sep 22, 2026	11-50	10 contacts →
	Partial evidence “As part of MYgroup, The Maltings is our organic waste division, dedicated to the full recovery, processing, re-use and treatment of organic liquids and solids.” Source: RevenueBase Database · checked Sep 22, 2026
13	MPC Services UK LTD	Partial evidence	Heanor, United KingdomHQ checked Sep 22, 2026	11-50	9 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
14	Puretech Environmental LTD	Partial evidence	Cranleigh, United KingdomHQ checked Sep 22, 2026	11-50	8 contacts →
	Partial evidence “Puretech Environmental Waste Water Treatment Company are specialists in all Industrial Effluent Treatment Systems.” Source: RevenueBase Database · checked Sep 22, 2026
15	Orège UK LTD	Strong evidence	Stoke-on-trent, United KingdomHQ checked Sep 22, 2026	11-50	6 contacts →
	Strong evidence “Orege UK Ltd manufactures breakthrough technologies creating solutions for the treatment of municipal and industrial sludge and complex effluents.” Source: RevenueBase Database · checked Sep 22, 2026
16	Atana Limited	Indirect evidence	Lutterworth, United KingdomHQ checked Sep 22, 2026	1-10	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
17	Jems Environmental LTD	Indirect evidence	Norwich, United KingdomHQ checked Sep 22, 2026	11-50	5 contacts →
	Indirect evidence “Jems Environmental Group transforms wastewater management with cutting-edge technology, bespoke solutions and sustainable practices.” Source: RevenueBase Database · checked Sep 22, 2026
18	Walsh Brothers Industrial Services LTD	Indirect evidence	Clackmannan, United KingdomHQ checked Sep 22, 2026	11-50	5 contacts →
	Indirect evidence “For over 50 years, Walsh Brothers has delivered reliable, compliant, and cost-effective waste management and industrial cleaning services across Scotland.” Source: RevenueBase Database · checked Sep 22, 2026
19	Oates Environmental	Partial evidence	Leeds, United KingdomHQ checked Sep 22, 2026	11-50	4 contacts →
	Partial evidence “Total Industrial Waste Management Services We are a northern based, leading waste management company specialising in hazardous and non-hazardous waste re-cycling treatment…” Source: RevenueBase Database · checked Sep 22, 2026
20	Direct Waste Management Limited	Indirect evidence	Peterhead, United KingdomHQ checked Sep 22, 2026	1-10	4 contacts →
	Indirect evidence “DIRECT WASTE MANAGEMENT LIMITED is a family owned company which established in 1998.” Source: RevenueBase Database · checked Sep 22, 2026
21	Alro Services Limited	Partial evidence	Exeter, United KingdomHQ checked Sep 22, 2026	1-10	3 contacts →
	Partial evidence “Sewage & Waste Water Treatment Engineers.” Source: RevenueBase Database · checked Sep 22, 2026
22	SAS Environmental Services LTD	Indirect evidence	Livingston, United KingdomHQ checked Sep 22, 2026	11-50	2 contacts →
	Indirect evidence “SAS Environmental Services combines decades of field experience with specialist chemistry and engineered solutions to solve oil-waste challenges.” Source: RevenueBase Database · checked Sep 22, 2026
23	Dexter Watson LTD	Indirect evidence	York, United KingdomHQ checked Sep 22, 2026	1-10	2 contacts →
	Indirect evidence “Established in 2012, Dexter Watson Limited was formed by the bringing together of a talented team of individuals, each with their own backgrounds and expertise in both waste…” Source: RevenueBase Database · checked Sep 22, 2026
24	Northern Disposal Services Limited	Indirect evidence	Mirfield, United KingdomHQ checked Sep 22, 2026	11-50	1 contacts →
	Indirect evidence “Waste management and disposal, liquid waste contractors and landfill services.” Source: RevenueBase Database · checked Sep 22, 2026
25	FM Environmental LTD	Indirect evidence	Newry, United KingdomHQ checked Sep 22, 2026	11-50	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: sludge treatment companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names sludge treatment companies.
Partial evidence: Its own public description names part of sludge treatment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sludge treatment companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 56 sludge treatment companies based in the United Kingdom

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Sludge treatment companies based in the United Kingdom at a glance

As of Sep 22, 2026

39.6%Verified-email coverage

12.6Average contacts per company

11-50Median size (employees)

5.4%Largest-city concentration · Newry

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 56 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among sludge treatment companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “sludge treatment companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names sludge treatment companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among sludge treatment companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 280 across the full list. 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 September 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names sludge treatment companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many sludge treatment companies are there based in the United Kingdom?

RevenueBase identified 56 sludge treatment companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Severn Trent Services, headquartered in Coventry, tops this list with the largest team on record.

Which city has the most sludge treatment companies?

Newry leads with 3 headquartered companies, followed by Chippenham (2) and Coventry (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 280 verified decision-maker contacts tracked across these 56 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 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 Smart Search, 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.