Company lists · Data refreshed October 2026

Top 25 Organic recovery wastewater treatment services based in the United Kingdom

Name: Organic recovery wastewater treatment services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 28, 2026 433 companies tracked

RevenueBase identified 433 company matches for organic recovery wastewater treatment services associated with the United Kingdom as of October 2026 and tracks 7,392 professional contacts across them, including 2,707 with verified work emails. London is the largest hub.

This list covers company matches for organic recovery wastewater treatment services 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 28, 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 28, 2026 How this list was built

433Companies

7,392Contacts tracked

2,707Verified emails

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The 25 largest organic recovery wastewater treatment services based in the United Kingdom

Ranked by team size

Top 25 of 433 company matches for organic recovery wastewater treatment services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 28, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	ENVA	Exact match	Enva, United KingdomHQ recorded Oct 28, 2026	1,001-5,000	693 contacts →
	Exact match “Enva is a full-service and leading provider of recycling and resource recovery solutions, employing over 1700 people at locations across the United Kingdom and Ireland.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
2	RSE	Exact match	Inverness Highlands, United KingdomHQ recorded Oct 28, 2026	501-1,000	291 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 28, 2026 · View company records in RevenueBase
3	Hydro Cleansing	Exact match	Croydon, United KingdomHQ recorded Oct 28, 2026	201-500	250 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 · Oct 28, 2026 · View company records in RevenueBase
4	Londonenergy	Exact match	London, United KingdomHQ recorded Oct 28, 2026	501-1,000	187 contacts →
	Exact match “LondonEnergy is the second-largest waste contract in the UK, handling and processing nearly tonnes of London’s waste every year.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
5	Biwater	Exact match	Surrey, United KingdomHQ recorded Oct 28, 2026	501-1,000	186 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 28, 2026 · View company records in RevenueBase
6	Onsite Central Limited	Exact match	Worcester, United KingdomHQ recorded Oct 28, 2026	201-500	183 contacts →
	Exact match “Originally established in 1977, OnSite is a South Staffordshire Group owned company that has grown through strategic acquisition and organic expansion to become one of the UK's…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
7	Severn Trent Services	Exact match	Coventry, United KingdomHQ recorded Oct 28, 2026	1,001-5,000	147 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 28, 2026 · View company records in RevenueBase
8	Thalia Waste Management	Exact match	London, United KingdomHQ recorded Oct 28, 2026	501-1,000	136 contacts →
	Exact match “Here at Thalia Waste Management, we see waste differently.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
9	Biogen UK LTD	Exact match	Bedford, United KingdomHQ recorded Oct 28, 2026	51-200	120 contacts →
	Exact match “We provide an unrivalled food and organic waste recycling solution to local authorities and commercial customers across the UK, processing waste from homes, supermarkets, pubs…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
10	Enpure	Exact match	Birmingham, United KingdomHQ recorded Oct 28, 2026	51-200	113 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 28, 2026 · View company records in RevenueBase
11	BARR	Exact match	Cumnock, United KingdomHQ recorded Oct 28, 2026	51-200	89 contacts →
	Exact match “Barr is one of Scotland's leading waste management companies, operating a variety of high quality waste treatment, recycling and residual disposal facilities throughout the West…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
12	Salt Separation Services Limited	Exact match	Rochdale, United KingdomHQ recorded Oct 28, 2026	51-200	84 contacts →
	Exact match “Salt Separation Services Limited is an independent water treatment company specialising in the design, manufacture, installation and commissioning of water treatment systems.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
13	Siltbuster LTD	Exact match	Monmouth, United KingdomHQ recorded Oct 28, 2026	51-200	83 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 28, 2026 · View company records in RevenueBase
14	GEL Engineering	Exact match	Enfield, United KingdomHQ recorded Oct 28, 2026	51-200	80 contacts →
	Exact match “Welcome to Gel Engineering.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
15	Richard Alan	Exact match	Dewsbury, United KingdomHQ recorded Oct 28, 2026	51-200	75 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 28, 2026 · View company records in RevenueBase
16	Jacopa Limited	Exact match	West Bromwich, United KingdomHQ recorded Oct 28, 2026	51-200	72 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 28, 2026 · View company records in RevenueBase
17	Nijhuis Saur Industries UK And Ireland	Exact match	United Kingdom & Ireland, United KingdomHQ recorded Oct 28, 2026	201-500	71 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 28, 2026 · View company records in RevenueBase
18	Refood UK	Exact match	Doncaster, United KingdomHQ recorded Oct 28, 2026	51-200	64 contacts →
	Exact match “ReFood is the European market leader in the field of disposal of organic waste from kitchens, canteens and retailers.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
19	Water2business	Exact match	Bristol, United KingdomHQ recorded Oct 28, 2026	51-200	62 contacts →
	Exact match “water2business is a leading retailer of water and waste water management solutions to businesses and organisations across England and Scotland.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
20	Glanville Environmental	Exact match	Ivybridge, United KingdomHQ recorded Oct 28, 2026	201-500	59 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 · Oct 28, 2026 · View company records in RevenueBase
21	Advanced Water Technologies	Exact match	Warrington, United KingdomHQ recorded Oct 28, 2026	51-200	58 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 28, 2026 · View company records in RevenueBase
22	T-T Pumps LTD	Exact match	Woore, United KingdomHQ recorded Oct 28, 2026	51-200	56 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 28, 2026 · View company records in RevenueBase
23	ESD Joint Venture	Exact match	Stepps, United KingdomHQ recorded Oct 28, 2026	201-500	52 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 28, 2026 · View company records in RevenueBase
24	Huber Technology UK & Ireland	Exact match	Chippenham, United KingdomHQ recorded Oct 28, 2026	51-200	50 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 28, 2026 · View company records in RevenueBase
25	Castle Environmental	Exact match	Ilkeston, United KingdomHQ recorded Oct 28, 2026	51-200	50 contacts →
	Exact match “Castle Environmental is a leading supplier of specialist waste treatment, disposal and recycling services.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “organic recovery wastewater treatment services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 433 organic recovery wastewater treatment services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,707 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Organic recovery wastewater treatment services based in the United Kingdom at a glance

As of Oct 28, 2026

36.6%Verified-email coverage

17.1Average contacts per company

11-50Median size (employees)

5.5%Largest-city concentration · London

Oct 28, 2026Page data refreshed

Companies by employee count

1-10

192

11-50

156

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 433 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 “organic recovery wastewater treatment services” 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 2,707 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 28, 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 “organic recovery wastewater treatment services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many organic recovery wastewater treatment services are there based in the United Kingdom?

RevenueBase identified 433 company matches for organic recovery wastewater treatment services 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?

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

Which city has the most organic recovery wastewater treatment services?

London leads with 24 company records, followed by Bristol (8) and Coventry (6).

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 2,707 professional contacts with verified work emails tracked across these 433 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 28, 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.