Company lists · Data refreshed September 2026
Top 25 Activated sludge system installers based in the United Kingdom
RevenueBase identified 141 company matches for activated sludge system installers associated with the United Kingdom as of September 2026 and tracks 2,909 professional contacts across them, including 1,469 with verified work emails. Coventry is the largest hub.
This list covers company matches for activated sludge 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 September 19, 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.
The 25 largest activated sludge system installers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 879 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 178 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 137 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 88 contacts → | ||||
Exact match “ERG is a specialist environmental engineering contractor.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 75 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 74 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 73 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 70 contacts → | ||||
Exact match “Welcome to Gel Engineering.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 58 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 58 contacts → | ||||
Exact match “We are one of the UK’s fastest growing in and most dynamic maintenance services organisations, encompassing several specialist engineering operations within the group.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 49 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 48 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 45 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 44 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 33 contacts → | ||||
Exact match “Marsh Industries delivers world-class water/wastewater treatment products and solutions to the domestic, commercial, agricultural and leisure sectors from its UK manufacturing…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 32 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 25 contacts → | ||||
Exact match “AFECO (a United Infrastructure Group company) is an engineering services, solutions and products provider specialising in process, mechanical, electrical and ICA engineering for…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 22 contacts → | ||||
Exact match “ACWA Services Limited is a Municipal and Industrial Water and Wastewater Treatment company located in Skipton, United Kingdom.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 21 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 18 contacts → | ||||
Exact match “WE ARE SERIOUS.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 17 contacts → | ||||
Exact match “Suprafilt offer a complete aeration solution including the design, advice, manufacture and installation of energy efficient fine bubble aeration systems for biological treatment…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 16 contacts → | ||||
Exact match “IETG is a multi-disciplinary support services company operating within the water and waste water industries.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 16 contacts → | ||||
Exact match “Te-Tech Process Solutions Ltd has been established to provide a dedicated service to existing and new clients in the municipal water, industrial and commercial sectors.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 14 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 · Sep 19, 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 “activated sludge system installers”. 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 141 activated sludge system installers based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 1,469 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Activated sludge system installers based in the United Kingdom at a glance
As of Sep 19, 2026Companies by employee count
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 141 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 “activated sludge 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 1,469 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 September 19, 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 “activated sludge system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many activated sludge system installers are there based in the United Kingdom?
RevenueBase identified 141 company matches for activated sludge system installers associated with the United Kingdom as of September 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 activated sludge system installers?
Coventry leads with 5 company records, followed by Newry (5) and Dorking (3).
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 1,469 professional contacts with verified work emails tracked across these 141 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 September 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 141 activated sludge system installers based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Activated sludge system installers by geography
- Activated sludge system installers based in Ahmedabad, India
- Activated sludge system installers based in Australia
- Activated sludge system installers based in Brazil
- Activated sludge system installers based in Canada
- Activated sludge system installers based in France
- Activated sludge system installers based in Germany
- Activated sludge system installers based in India
- Activated sludge system installers based in Italy
- Activated sludge system installers based in Mexico
- Activated sludge system installers based in the Netherlands
- Activated sludge system installers based in South Africa
- Activated sludge system installers based in Spain
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Activated sludge system installers based in Ahmedabad, India
- Activated sludge system installers based in Australia
- Activated sludge system installers based in Brazil
- Activated sludge system installers based in Canada
- Activated sludge system installers based in France
- Activated sludge system installers based in Germany
Company intelligence · public preview
Top 25 activated sludge system installers based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 141 matching company records for activated sludge system installers based in the United Kingdom, with 2,909 tracked contacts and 1,469 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 activated sludge system installers based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | MWH Treatmentmwhtreatment.com HQ: Stockport, United KingdomReported employees: 1,001-5,000 | Stockport, United Kingdom | 1,001-5,000 | Exact match | 879 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Biwaterbiwater.comHQ: Surrey, United KingdomReported employees: 501-1,000 | Surrey, United Kingdom | 501-1,000 | Exact match | 178 contacts → |
“Biwater is a world leader in treated water, providing large-scale water and wastewater solutions for clients across the world.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Severn Trent Servicesstservices.co.ukHQ: Coventry, United KingdomReported employees: 1,001-5,000 | Coventry, United Kingdom | 1,001-5,000 | Exact match | 137 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Enpureenpure.co.ukHQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 113 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  ERG AIR Pollution Control LTDergapc.co.ukHQ: Horsham, United KingdomReported employees: 51-200 | Horsham, United Kingdom | 51-200 | Exact match | 88 contacts → |
“ERG is a specialist environmental engineering contractor.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Siltbuster LTDworkdry.comHQ: Monmouth, United KingdomReported employees: 51-200 | Monmouth, United Kingdom | 51-200 | Exact match | 75 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Richard Alanrichardalan.co.ukHQ: Dewsbury, United KingdomReported employees: 51-200 | Dewsbury, United Kingdom | 51-200 | Exact match | 74 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Jacopa Limitedjacopa.comHQ: West Bromwich, United KingdomReported employees: 51-200 | West Bromwich, United Kingdom | 51-200 | Exact match | 73 contacts → |
“Many of the best known, most respected and reliable brand names in the wastewater industry are part of Jacopa's heritage.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | GEL Engineeringgelengineering.co.uk HQ: Enfield, United KingdomReported employees: 51-200 | Enfield, United Kingdom | 51-200 | Exact match | 70 contacts → |
“Welcome to Gel Engineering.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  ESD Joint Ventureesd.scotHQ: Stepps, United KingdomReported employees: 201-500 | Stepps, United Kingdom | 201-500 | Exact match | 58 contacts → |
“How we manage water and wastewater systems now will be critical for our communities and ecosystems for many generations to come.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Deritendderitend.co.uk HQ: Wolverhampton, United KingdomReported employees: 51-200 | Wolverhampton, United Kingdom | 51-200 | Exact match | 58 contacts → |
“We are one of the UK’s fastest growing in and most dynamic maintenance services organisations, encompassing several specialist engineering operations within the group.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  T-T Pumps LTDttpumps.comHQ: Woore, United KingdomReported employees: 51-200 | Woore, United Kingdom | 51-200 | Exact match | 49 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Huber Technology UK & Irelandhuber.co.uk HQ: Chippenham, United KingdomReported employees: 51-200 | Chippenham, United Kingdom | 51-200 | Exact match | 48 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Hydro International UK Wastewater Serviceshydro-int.comHQ: Portland, United KingdomReported employees: 201-500 | Portland, United Kingdom | 201-500 | Exact match | 45 contacts → |
“Hydro International, a CRH Company, provides advanced products, services and expertise to help municipal, industrial and construction customers to improve their water management…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Atac Solutions LTDatacsolutions.comHQ: Maidstone, United KingdomReported employees: 11-50 | Maidstone, United Kingdom | 11-50 | Exact match | 44 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Marsh Industries LTDmarshindustries.co.uk HQ: Northamptonshire, United KingdomReported employees: 51-200 | Northamptonshire, United Kingdom | 51-200 | Exact match | 33 contacts → |
“Marsh Industries delivers world-class water/wastewater treatment products and solutions to the domestic, commercial, agricultural and leisure sectors from its UK manufacturing…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Wcsee Wastewater Marlowe Environmental Serviceswcs-group.co.ukHQ: Gloucester, United KingdomReported employees: 11-50 | Gloucester, United Kingdom | 11-50 | Exact match | 32 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  AFECOafeco.co.ukHQ: Havant, United KingdomReported employees: 11-50 | Havant, United Kingdom | 11-50 | Exact match | 25 contacts → |
“AFECO (a United Infrastructure Group company) is an engineering services, solutions and products provider specialising in process, mechanical, electrical and ICA engineering for…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Acwa Services Limitedacwa.co.ukHQ: Skipton, United KingdomReported employees: 11-50 | Skipton, United Kingdom | 11-50 | Exact match | 22 contacts → |
“ACWA Services Limited is a Municipal and Industrial Water and Wastewater Treatment company located in Skipton, United Kingdom.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | KEEkeeservices.co.uk HQ: Aylesbury, United KingdomReported employees: 51-200 | Aylesbury, United Kingdom | 51-200 | Exact match | 21 contacts → |
“KEE KEE is a globally recognised brand operating within in the industrial, commercial and domestic wastewater treatment industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Serious Waste Management LTDweareserious.co.uk HQ: Burton Upon Trent, United KingdomReported employees: 11-50 | Burton Upon Trent, United Kingdom | 11-50 | Exact match | 18 contacts → |
“WE ARE SERIOUS.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Suprafilt LTDsuprafilt.com HQ: Rochdale, United KingdomReported employees: 11-50 | Rochdale, United Kingdom | 11-50 | Exact match | 17 contacts → |
“Suprafilt offer a complete aeration solution including the design, advice, manufacture and installation of energy efficient fine bubble aeration systems for biological treatment…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 16 contacts → |
“IETG is a multi-disciplinary support services company operating within the water and waste water industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Te-Tech Process Solutionste-tech.co.uk HQ: Southampton, United KingdomReported employees: 501-1,000 | Southampton, United Kingdom | 501-1,000 | Exact match | 16 contacts → |
“Te-Tech Process Solutions Ltd has been established to provide a dedicated service to existing and new clients in the municipal water, industrial and commercial sectors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Viltraviltra.co.uk HQ: Newry, United KingdomReported employees: 11-50 | Newry, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Viltra specialises in designing, manufacturing and installing wastewater treatment solutions for a wide range of sectors throughout the UK and Ireland, including domestic…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 141 company matches
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Activated sludge system installers: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
138 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 141 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for activated sludge system installers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many activated sludge system installers did RevenueBase find based in the United Kingdom?
The saved snapshot records 141 matching company records, 2,909 tracked contacts and 1,469 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Activated sludge system installers by geography
- Activated sludge system installers based in Ahmedabad, India
- Activated sludge system installers based in Australia
- Activated sludge system installers based in Brazil
- Activated sludge system installers based in Canada
- Activated sludge system installers based in France
- Activated sludge system installers based in Germany
- Activated sludge system installers based in India
- Activated sludge system installers based in Italy
- Activated sludge system installers based in Mexico
- Activated sludge system installers based in the Netherlands
- Activated sludge system installers based in South Africa
- Activated sludge system installers based in Spain
Cite this list
RevenueBase Data Team. Top 25 activated sludge system installers based in the United Kingdom. Snapshot: September 19, 2026. https://revenuebase.ai/companies/activated-sludge-system-installers/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Activated sludge system installers based in Ahmedabad, India
- Activated sludge system installers based in Australia
- Activated sludge system installers based in Brazil
- Activated sludge system installers based in Canada
- Activated sludge system installers based in France
- Activated sludge system installers based in Germany
Company intelligence · public preview
Top 25 activated sludge system installers based in the United Kingdom
RevenueBase records 141 matching company records for activated sludge system installers based in the United Kingdom, with 2,909 tracked contacts and 1,469 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 activated sludge system installers based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | MWH Treatmentmwhtreatment.com HQ: Stockport, United KingdomReported employees: 1,001-5,000 | Stockport, United Kingdom | 1,001-5,000 | Exact match | 879 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Biwaterbiwater.com HQ: Surrey, United KingdomReported employees: 501-1,000 | Surrey, United Kingdom | 501-1,000 | Exact match | 178 contacts → |
“Biwater is a world leader in treated water, providing large-scale water and wastewater solutions for clients across the world.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Severn Trent Servicesstservices.co.uk HQ: Coventry, United KingdomReported employees: 1,001-5,000 | Coventry, United Kingdom | 1,001-5,000 | Exact match | 137 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Enpureenpure.co.uk HQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 113 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | ERG AIR Pollution Control LTDergapc.co.uk HQ: Horsham, United KingdomReported employees: 51-200 | Horsham, United Kingdom | 51-200 | Exact match | 88 contacts → |
“ERG is a specialist environmental engineering contractor.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Siltbuster LTDworkdry.com HQ: Monmouth, United KingdomReported employees: 51-200 | Monmouth, United Kingdom | 51-200 | Exact match | 75 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Richard Alanrichardalan.co.uk HQ: Dewsbury, United KingdomReported employees: 51-200 | Dewsbury, United Kingdom | 51-200 | Exact match | 74 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Jacopa Limitedjacopa.com HQ: West Bromwich, United KingdomReported employees: 51-200 | West Bromwich, United Kingdom | 51-200 | Exact match | 73 contacts → |
“Many of the best known, most respected and reliable brand names in the wastewater industry are part of Jacopa's heritage.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | GEL Engineeringgelengineering.co.uk HQ: Enfield, United KingdomReported employees: 51-200 | Enfield, United Kingdom | 51-200 | Exact match | 70 contacts → |
“Welcome to Gel Engineering.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | ESD Joint Ventureesd.scot HQ: Stepps, United KingdomReported employees: 201-500 | Stepps, United Kingdom | 201-500 | Exact match | 58 contacts → |
“How we manage water and wastewater systems now will be critical for our communities and ecosystems for many generations to come.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Deritendderitend.co.uk HQ: Wolverhampton, United KingdomReported employees: 51-200 | Wolverhampton, United Kingdom | 51-200 | Exact match | 58 contacts → |
“We are one of the UK’s fastest growing in and most dynamic maintenance services organisations, encompassing several specialist engineering operations within the group.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | T-T Pumps LTDttpumps.com HQ: Woore, United KingdomReported employees: 51-200 | Woore, United Kingdom | 51-200 | Exact match | 49 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Huber Technology UK & Irelandhuber.co.uk HQ: Chippenham, United KingdomReported employees: 51-200 | Chippenham, United Kingdom | 51-200 | Exact match | 48 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Hydro International UK Wastewater Serviceshydro-int.com HQ: Portland, United KingdomReported employees: 201-500 | Portland, United Kingdom | 201-500 | Exact match | 45 contacts → |
“Hydro International, a CRH Company, provides advanced products, services and expertise to help municipal, industrial and construction customers to improve their water management…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Atac Solutions LTDatacsolutions.com HQ: Maidstone, United KingdomReported employees: 11-50 | Maidstone, United Kingdom | 11-50 | Exact match | 44 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Marsh Industries LTDmarshindustries.co.uk HQ: Northamptonshire, United KingdomReported employees: 51-200 | Northamptonshire, United Kingdom | 51-200 | Exact match | 33 contacts → |
“Marsh Industries delivers world-class water/wastewater treatment products and solutions to the domestic, commercial, agricultural and leisure sectors from its UK manufacturing…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Wcsee Wastewater Marlowe Environmental Serviceswcs-group.co.uk HQ: Gloucester, United KingdomReported employees: 11-50 | Gloucester, United Kingdom | 11-50 | Exact match | 32 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | AFECOafeco.co.uk HQ: Havant, United KingdomReported employees: 11-50 | Havant, United Kingdom | 11-50 | Exact match | 25 contacts → |
“AFECO (a United Infrastructure Group company) is an engineering services, solutions and products provider specialising in process, mechanical, electrical and ICA engineering for…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Acwa Services Limitedacwa.co.uk HQ: Skipton, United KingdomReported employees: 11-50 | Skipton, United Kingdom | 11-50 | Exact match | 22 contacts → |
“ACWA Services Limited is a Municipal and Industrial Water and Wastewater Treatment company located in Skipton, United Kingdom.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | KEEkeeservices.co.uk HQ: Aylesbury, United KingdomReported employees: 51-200 | Aylesbury, United Kingdom | 51-200 | Exact match | 21 contacts → |
“KEE KEE is a globally recognised brand operating within in the industrial, commercial and domestic wastewater treatment industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Serious Waste Management LTDweareserious.co.uk HQ: Burton Upon Trent, United KingdomReported employees: 11-50 | Burton Upon Trent, United Kingdom | 11-50 | Exact match | 18 contacts → |
“WE ARE SERIOUS.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Suprafilt LTDsuprafilt.com HQ: Rochdale, United KingdomReported employees: 11-50 | Rochdale, United Kingdom | 11-50 | Exact match | 17 contacts → |
“Suprafilt offer a complete aeration solution including the design, advice, manufacture and installation of energy efficient fine bubble aeration systems for biological treatment…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 16 contacts → |
“IETG is a multi-disciplinary support services company operating within the water and waste water industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Te-Tech Process Solutionste-tech.co.uk HQ: Southampton, United KingdomReported employees: 501-1,000 | Southampton, United Kingdom | 501-1,000 | Exact match | 16 contacts → |
“Te-Tech Process Solutions Ltd has been established to provide a dedicated service to existing and new clients in the municipal water, industrial and commercial sectors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Viltraviltra.co.uk HQ: Newry, United KingdomReported employees: 11-50 | Newry, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Viltra specialises in designing, manufacturing and installing wastewater treatment solutions for a wide range of sectors throughout the UK and Ireland, including domestic…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 141 company matches
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Activated sludge system installers: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
138 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 141 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for activated sludge system installers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many activated sludge system installers did RevenueBase find based in the United Kingdom?
The saved snapshot records 141 matching company records, 2,909 tracked contacts and 1,469 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Activated sludge system installers by geography
- Activated sludge system installers based in Ahmedabad, India
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- Activated sludge system installers based in France
- Activated sludge system installers based in Germany
- Activated sludge system installers based in India
- Activated sludge system installers based in Italy
- Activated sludge system installers based in Mexico
- Activated sludge system installers based in the Netherlands
- Activated sludge system installers based in South Africa
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Cite this list
RevenueBase Data Team. Top 25 activated sludge system installers based in the United Kingdom. Snapshot: September 19, 2026. https://revenuebase.ai/companies/activated-sludge-system-installers/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Activated sludge system installers based in Ahmedabad, India
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- Activated sludge system installers based in Canada
- Activated sludge system installers based in France
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