Company lists · Data refreshed October 2026
Top 25 Outsourced water treatment services based in the United Kingdom
RevenueBase identified 455 company matches for outsourced water treatment services associated with the United Kingdom as of October 2026 and tracks 19,073 professional contacts across them, including 7,105 with verified work emails. London is the largest hub.
This list covers company matches for outsourced water 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.
The 25 largest outsourced water treatment services based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,786 contacts → | ||||
Exact match “At Pentair, we help the world sustainably move, improve, and enjoy water, life’s most essential resource.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 2 | 3,662 contacts → | ||||
Exact match “Anglian Water supply water and water recycling services to more than six million domestic and business customers in the east of England and Hartlepool.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 3 | 930 contacts → | ||||
Exact match “MWH Treatment is a leading Design and Build non-infrastructure solution provider in the UK water sector, with a water sector heritage dating back to 1820.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 4 | 506 contacts → | ||||
Exact match “Selwood is your trusted partner in mission-critical water handling, storage, and treatment solutions across the UK.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 5 | 311 contacts → | ||||
Exact match “We're the UK's largest business water retailer, providing organisations of all sizes with billing, account management, meter reading and water efficiency services.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 6 | 295 contacts → | ||||
Exact match “We’re one of the largest water retailers in the UK, known for our passionate approach to customer service and exceptional knowledge of the water industry.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 7 | 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 | |||||
| 8 | 243 contacts → | ||||
Exact match “Culligan UK delivers innovative, high-quality water solutions to homes and businesses across the United Kingdom.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 9 | 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 | |||||
| 10 | 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 | |||||
| 11 | 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 | |||||
| 12 | 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 | 84 contacts → | ||||
Exact match “Feedwater Ltd is a UK Water Treatment Company, established in 1976 specifically to supply products and services for the treatment of water for steam boilers, cooling towers…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 14 | 84 contacts → | ||||
Exact match “Envirogen Group is a global leader in industrial water treatment and process filtration solutions.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 15 | 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 | |||||
| 16 | 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 | |||||
| 17 | 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 | |||||
| 18 | 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 | |||||
| 19 | 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 | 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 | 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 | 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 | 54 contacts → | ||||
Exact match “Hydrotec is the UK’s leading company in the design and manufacture of water treatment products for the building services industry.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 24 | 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 | |||||
| 25 | 49 contacts → | ||||
Exact match “As the UK’s foremost provider of alternative water services, we’re dedicated to ensuring that every business and household has access to a quality water supply – no matter what.” 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 “outsourced water 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 455 outsourced water treatment services based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 7,105 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Outsourced water treatment services based in the United Kingdom at a glance
As of Oct 28, 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 455 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 “outsourced water 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 7,105 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 “outsourced water treatment services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many outsourced water treatment services are there based in the United Kingdom?
RevenueBase identified 455 company matches for outsourced water 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?
Pentair tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most outsourced water treatment services?
London leads with 23 company records, followed by Birmingham (7) and Belfast (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 7,105 professional contacts with verified work emails tracked across these 455 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.
Ready to reach these companies? Verified emails and direct dials for all 455 outsourced water treatment services based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Outsourced water treatment services by geography
- Outsourced water treatment services based in Sao Paulo, Brazil
- Outsourced water treatment services based in Calgary, Canada
- Outsourced water treatment services based in Santiago, Chile
- Outsourced water treatment services based in Ahmedabad, India
- Outsourced water treatment services based in Bangalore, India
- Outsourced water treatment services based in Chennai, India
- Outsourced water treatment services based in Gurgaon, India
- Outsourced water treatment services based in Mumbai, India
- Outsourced water treatment services based in New Delhi, India
- Outsourced water treatment services based in Pune, India
- Outsourced water treatment services based in Monterrey, Mexico
- Outsourced water treatment services based in Lima, Peru
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
- Outsourced water treatment services based in Sao Paulo, Brazil
- Outsourced water treatment services based in Calgary, Canada
- Outsourced water treatment services based in Santiago, Chile
- Outsourced water treatment services based in Ahmedabad, India
- Outsourced water treatment services based in Bangalore, India
- Outsourced water treatment services based in Chennai, India
Company intelligence · public preview
Top 25 outsourced water treatment services 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 455 matching company records for outsourced water treatment services based in the United Kingdom, with 19,073 tracked contacts and 7,105 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: October 28, 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 outsourced water treatment services 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 | Pentairpentair.com HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 6,786 contacts → |
“At Pentair, we help the world sustainably move, improve, and enjoy water, life’s most essential resource.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Anglian Water Servicesanglianwater.co.ukHQ: Huntingdon, United KingdomReported employees: 5,001-10,000 | Huntingdon, United Kingdom | 5,001-10,000 | Exact match | 3,662 contacts → |
“Anglian Water supply water and water recycling services to more than six million domestic and business customers in the east of England and Hartlepool.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | MWH Treatmentmwhtreatment.com HQ: Stockport, United KingdomReported employees: 1,001-5,000 | Stockport, United Kingdom | 1,001-5,000 | Exact match | 930 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Selwood LTDselwood.co.ukHQ: Eastleigh, United KingdomReported employees: 501-1,000 | Eastleigh, United Kingdom | 501-1,000 | Exact match | 506 contacts → |
“Selwood is your trusted partner in mission-critical water handling, storage, and treatment solutions across the UK.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Water Pluswater-plus.co.uk HQ: Stoke-on-trent, United KingdomReported employees: 201-500 | Stoke-on-trent, United Kingdom | 201-500 | Exact match | 311 contacts → |
“We're the UK's largest business water retailer, providing organisations of all sizes with billing, account management, meter reading and water efficiency services.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Business Streambusiness-stream.co.uk HQ: Edinburgh, United KingdomReported employees: 201-500 | Edinburgh, United Kingdom | 201-500 | Exact match | 295 contacts → |
“We’re one of the largest water retailers in the UK, known for our passionate approach to customer service and exceptional knowledge of the water industry.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | RSEross-eng.com HQ: Inverness Highlands, United KingdomReported employees: 501-1,000 | Inverness Highlands, United Kingdom | 501-1,000 | Exact match | 291 contacts → |
“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 description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Culligan UKculligan.co.ukHQ: Dereham, United KingdomReported employees: 501-1,000 | Dereham, United Kingdom | 501-1,000 | Exact match | 243 contacts → |
“Culligan UK delivers innovative, high-quality water solutions to homes and businesses across the United Kingdom.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Biwaterbiwater.comHQ: Surrey, United KingdomReported employees: 501-1,000 | Surrey, United Kingdom | 501-1,000 | Exact match | 186 contacts → |
“Biwater is a world leader in treated water, providing large-scale water and wastewater solutions for clients across the world.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Severn Trent Servicesstservices.co.ukHQ: Coventry, United KingdomReported employees: 1,001-5,000 | Coventry, United Kingdom | 1,001-5,000 | Exact match | 147 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Salt Separation Services Limitedsaltsep.co.ukHQ: Rochdale, United KingdomReported employees: 51-200 | Rochdale, United Kingdom | 51-200 | Exact match | 84 contacts → |
“Salt Separation Services Limited is an independent water treatment company specialising in the design, manufacture, installation and commissioning of water treatment systems.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Feedwater Limitedfeedwater.co.ukHQ: Moreton, United KingdomReported employees: 51-200 | Moreton, United Kingdom | 51-200 | Exact match | 84 contacts → |
“Feedwater Ltd is a UK Water Treatment Company, established in 1976 specifically to supply products and services for the treatment of water for steam boilers, cooling towers…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Envirogen Groupenvirogengroup.comHQ: Alfreton, United KingdomReported employees: 201-500 | Alfreton, United Kingdom | 201-500 | Exact match | 84 contacts → |
“Envirogen Group is a global leader in industrial water treatment and process filtration solutions.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Siltbuster LTDworkdry.comHQ: Monmouth, United KingdomReported employees: 51-200 | Monmouth, United Kingdom | 51-200 | Exact match | 83 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Richard Alanrichardalan.co.ukHQ: Dewsbury, United KingdomReported employees: 51-200 | Dewsbury, United Kingdom | 51-200 | Exact match | 75 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Jacopa Limitedjacopa.comHQ: West Bromwich, United KingdomReported employees: 51-200 | West Bromwich, United Kingdom | 51-200 | Exact match | 72 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Nijhuis Saur Industries UK And Irelandnijhuisindustries.comHQ: United Kingdom & Ireland, United KingdomReported employees: 201-500 | United Kingdom & Ireland, United Kingdom | 201-500 | Exact match | 71 contacts → |
“At Nijhuis Saur Industries UK & Ireland our aim is to help our customers realise the value of their water and wastewater.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Water2businesswater2business.co.uk HQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 62 contacts → |
“water2business is a leading retailer of water and waste water management solutions to businesses and organisations across England and Scotland.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Glanville Environmentalglanvilleenvironmental.comHQ: Ivybridge, United KingdomReported employees: 201-500 | Ivybridge, United Kingdom | 201-500 | Exact match | 59 contacts → |
“Glanville Environmental help commercial infrastructure owners reduce pollution and flood risk by inspecting and maintaining ageing drainage systems and installing new…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Advanced Water Technologiesadvanced-water.co.ukHQ: Warrington, United KingdomReported employees: 51-200 | Warrington, United Kingdom | 51-200 | Exact match | 58 contacts → |
“Welcome to Advanced Water Technologies: A dedicated water treatment & hygiene specialists focused on providing optimum solutions across a vast array of services, chemicals…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  T-T Pumps LTDttpumps.comHQ: Woore, United KingdomReported employees: 51-200 | Woore, United Kingdom | 51-200 | Exact match | 56 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Hydrotec Water Treatment Specialistshydrotec.co.ukHQ: High Wycombe, United KingdomReported employees: 51-200 | High Wycombe, United Kingdom | 51-200 | Exact match | 54 contacts → |
“Hydrotec is the UK’s leading company in the design and manufacture of water treatment products for the building services industry.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  ESD Joint Ventureesd.scotHQ: Stepps, United KingdomReported employees: 201-500 | Stepps, United Kingdom | 201-500 | Exact match | 52 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Water Directwater-direct.co.uk HQ: Colchester, United KingdomReported employees: 51-200 | Colchester, United Kingdom | 51-200 | Exact match | 49 contacts → |
“As the UK’s foremost provider of alternative water services, we’re dedicated to ensuring that every business and household has access to a quality water supply – no matter what.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 455 company matches
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Outsourced water treatment services: dataset insights
October 28, 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
451 records in the displayed employee bands.
4 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 455 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: October 28, 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 outsourced water treatment services?
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 outsourced water treatment services did RevenueBase find based in the United Kingdom?
The saved snapshot records 455 matching company records, 19,073 tracked contacts and 7,105 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: October 28, 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
Outsourced water treatment services by geography
- Outsourced water treatment services based in Sao Paulo, Brazil
- Outsourced water treatment services based in Calgary, Canada
- Outsourced water treatment services based in Santiago, Chile
- Outsourced water treatment services based in Ahmedabad, India
- Outsourced water treatment services based in Bangalore, India
- Outsourced water treatment services based in Chennai, India
- Outsourced water treatment services based in Gurgaon, India
- Outsourced water treatment services based in Mumbai, India
- Outsourced water treatment services based in New Delhi, India
- Outsourced water treatment services based in Pune, India
- Outsourced water treatment services based in Monterrey, Mexico
- Outsourced water treatment services based in Lima, Peru
Cite this list
RevenueBase Data Team. Top 25 outsourced water treatment services based in the United Kingdom. Snapshot: October 28, 2026. https://revenuebase.ai/companies/outsourced-water-treatment-services/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
- Outsourced water treatment services based in Sao Paulo, Brazil
- Outsourced water treatment services based in Calgary, Canada
- Outsourced water treatment services based in Santiago, Chile
- Outsourced water treatment services based in Ahmedabad, India
- Outsourced water treatment services based in Bangalore, India
- Outsourced water treatment services based in Chennai, India
Company intelligence · public preview
Top 25 outsourced water treatment services based in the United Kingdom
RevenueBase records 455 matching company records for outsourced water treatment services based in the United Kingdom, with 19,073 tracked contacts and 7,105 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: October 28, 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 outsourced water treatment services 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 | Pentairpentair.com HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 6,786 contacts → |
“At Pentair, we help the world sustainably move, improve, and enjoy water, life’s most essential resource.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Anglian Water Servicesanglianwater.co.uk HQ: Huntingdon, United KingdomReported employees: 5,001-10,000 | Huntingdon, United Kingdom | 5,001-10,000 | Exact match | 3,662 contacts → |
“Anglian Water supply water and water recycling services to more than six million domestic and business customers in the east of England and Hartlepool.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | MWH Treatmentmwhtreatment.com HQ: Stockport, United KingdomReported employees: 1,001-5,000 | Stockport, United Kingdom | 1,001-5,000 | Exact match | 930 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Selwood LTDselwood.co.uk HQ: Eastleigh, United KingdomReported employees: 501-1,000 | Eastleigh, United Kingdom | 501-1,000 | Exact match | 506 contacts → |
“Selwood is your trusted partner in mission-critical water handling, storage, and treatment solutions across the UK.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Water Pluswater-plus.co.uk HQ: Stoke-on-trent, United KingdomReported employees: 201-500 | Stoke-on-trent, United Kingdom | 201-500 | Exact match | 311 contacts → |
“We're the UK's largest business water retailer, providing organisations of all sizes with billing, account management, meter reading and water efficiency services.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Business Streambusiness-stream.co.uk HQ: Edinburgh, United KingdomReported employees: 201-500 | Edinburgh, United Kingdom | 201-500 | Exact match | 295 contacts → |
“We’re one of the largest water retailers in the UK, known for our passionate approach to customer service and exceptional knowledge of the water industry.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | RSEross-eng.com HQ: Inverness Highlands, United KingdomReported employees: 501-1,000 | Inverness Highlands, United Kingdom | 501-1,000 | Exact match | 291 contacts → |
“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 description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Culligan UKculligan.co.uk HQ: Dereham, United KingdomReported employees: 501-1,000 | Dereham, United Kingdom | 501-1,000 | Exact match | 243 contacts → |
“Culligan UK delivers innovative, high-quality water solutions to homes and businesses across the United Kingdom.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Biwaterbiwater.com HQ: Surrey, United KingdomReported employees: 501-1,000 | Surrey, United Kingdom | 501-1,000 | Exact match | 186 contacts → |
“Biwater is a world leader in treated water, providing large-scale water and wastewater solutions for clients across the world.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Severn Trent Servicesstservices.co.uk HQ: Coventry, United KingdomReported employees: 1,001-5,000 | Coventry, United Kingdom | 1,001-5,000 | Exact match | 147 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Salt Separation Services Limitedsaltsep.co.uk HQ: Rochdale, United KingdomReported employees: 51-200 | Rochdale, United Kingdom | 51-200 | Exact match | 84 contacts → |
“Salt Separation Services Limited is an independent water treatment company specialising in the design, manufacture, installation and commissioning of water treatment systems.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Feedwater Limitedfeedwater.co.uk HQ: Moreton, United KingdomReported employees: 51-200 | Moreton, United Kingdom | 51-200 | Exact match | 84 contacts → |
“Feedwater Ltd is a UK Water Treatment Company, established in 1976 specifically to supply products and services for the treatment of water for steam boilers, cooling towers…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Envirogen Groupenvirogengroup.com HQ: Alfreton, United KingdomReported employees: 201-500 | Alfreton, United Kingdom | 201-500 | Exact match | 84 contacts → |
“Envirogen Group is a global leader in industrial water treatment and process filtration solutions.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Siltbuster LTDworkdry.com HQ: Monmouth, United KingdomReported employees: 51-200 | Monmouth, United Kingdom | 51-200 | Exact match | 83 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Richard Alanrichardalan.co.uk HQ: Dewsbury, United KingdomReported employees: 51-200 | Dewsbury, United Kingdom | 51-200 | Exact match | 75 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Jacopa Limitedjacopa.com HQ: West Bromwich, United KingdomReported employees: 51-200 | West Bromwich, United Kingdom | 51-200 | Exact match | 72 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Nijhuis Saur Industries UK And Irelandnijhuisindustries.com HQ: United Kingdom & Ireland, United KingdomReported employees: 201-500 | United Kingdom & Ireland, United Kingdom | 201-500 | Exact match | 71 contacts → |
“At Nijhuis Saur Industries UK & Ireland our aim is to help our customers realise the value of their water and wastewater.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Water2businesswater2business.co.uk HQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 62 contacts → |
“water2business is a leading retailer of water and waste water management solutions to businesses and organisations across England and Scotland.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Glanville Environmentalglanvilleenvironmental.com HQ: Ivybridge, United KingdomReported employees: 201-500 | Ivybridge, United Kingdom | 201-500 | Exact match | 59 contacts → |
“Glanville Environmental help commercial infrastructure owners reduce pollution and flood risk by inspecting and maintaining ageing drainage systems and installing new…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Advanced Water Technologiesadvanced-water.co.uk HQ: Warrington, United KingdomReported employees: 51-200 | Warrington, United Kingdom | 51-200 | Exact match | 58 contacts → |
“Welcome to Advanced Water Technologies: A dedicated water treatment & hygiene specialists focused on providing optimum solutions across a vast array of services, chemicals…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | T-T Pumps LTDttpumps.com HQ: Woore, United KingdomReported employees: 51-200 | Woore, United Kingdom | 51-200 | Exact match | 56 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Hydrotec Water Treatment Specialistshydrotec.co.uk HQ: High Wycombe, United KingdomReported employees: 51-200 | High Wycombe, United Kingdom | 51-200 | Exact match | 54 contacts → |
“Hydrotec is the UK’s leading company in the design and manufacture of water treatment products for the building services industry.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | ESD Joint Ventureesd.scot HQ: Stepps, United KingdomReported employees: 201-500 | Stepps, United Kingdom | 201-500 | Exact match | 52 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Water Directwater-direct.co.uk HQ: Colchester, United KingdomReported employees: 51-200 | Colchester, United Kingdom | 51-200 | Exact match | 49 contacts → |
“As the UK’s foremost provider of alternative water services, we’re dedicated to ensuring that every business and household has access to a quality water supply – no matter what.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 455 company matches
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Outsourced water treatment services: dataset insights
October 28, 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
451 records in the displayed employee bands.
4 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 455 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: October 28, 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 outsourced water treatment services?
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 outsourced water treatment services did RevenueBase find based in the United Kingdom?
The saved snapshot records 455 matching company records, 19,073 tracked contacts and 7,105 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: October 28, 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.
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Cite this list
RevenueBase Data Team. Top 25 outsourced water treatment services based in the United Kingdom. Snapshot: October 28, 2026. https://revenuebase.ai/companies/outsourced-water-treatment-services/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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