Company lists · Data refreshed November 2026

Top 17 Potable water system operators based in the United Kingdom

RevenueBase identified 35 company matches for potable water system operators associated with the United Kingdom as of November 2026 and tracks 25,262 professional contacts across them, including 9,314 with verified work emails. Hatfield is the largest hub.

This list covers company matches for potable water system operators associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
35Companies
25,262Contacts tracked
9,314Verified emails
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The 17 largest potable water system operators based in the United Kingdom

Ranked by team size
Top 17 of 35 company matches for potable water system operators based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchReading, United KingdomHQ recorded Nov 6, 20261,001-5,0006,329 contacts →

Exact match

“Thames Water is the UK’s biggest water and wastewater services provider, providing 2.7 billion litres of drinking water and safely removing 4.6 billion litres of wastewater every…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchCoventry, United KingdomHQ recorded Nov 6, 20265,001-10,0006,089 contacts →

Exact match

“Water is wonderful.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchHuntingdon, United KingdomHQ recorded Nov 6, 20265,001-10,0003,747 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchCardiff, United KingdomHQ recorded Nov 6, 20261,001-5,0001,970 contacts →

Exact match

“Bath-times, half-times, party-times, meeting-times, and cooking-times.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchHatfield, United KingdomHQ recorded Nov 6, 20261,001-5,0001,028 contacts →

Exact match

“Our vision is to be the leading community-focused water company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCoventry, United KingdomHQ recorded Nov 6, 20261,001-5,000310 contacts →

Exact match

“Severn Trent Services offer a range of services to municipal and industrial clients, including the Ministry of Defence and the Coal Authority, for design, build and operation of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchWalsall, United KingdomHQ recorded Nov 6, 2026501-1,000257 contacts →

Exact match

“South Staffs Water is a private water company formed in 1853 to provide water to the inhabitants of the Black Country.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSelkirk, United KingdomHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Our teams are dedicated to supporting our clients to protect, maintain and improve water quality within treatment and distribution systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBromsgrove, United KingdomHQ recorded Nov 6, 202651-20031 contacts →

Exact match

“Watertight Management has established itself as a leader in the provision of Clean and Waste water management services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLuton, United KingdomHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“M&S Water Services (Utilities) Limited has been trading since 1997 when the company was set up to bridge the gap between water companies and the customer that domestic plumbers…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchCambridge, United KingdomHQ recorded Nov 6, 2026501-1,00023 contacts →

Exact match

“We supply high-quality drinking water to approximately customers, from Cambridge, extending to Ramsey in the north, Gamlingay in the west, Balsham in the east and Melbourn in the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchCadishead Manchester, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Established in 2006, Primary Water Group operates nationally from offices based in Manchester.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSouthsea, United KingdomHQ recorded Nov 6, 20261-107 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBlairgowrie, United KingdomHQ recorded Nov 6, 202651-2005 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchKilbirnie, United KingdomHQ recorded Nov 6, 202611-505 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchKelso, United KingdomHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Water Related Services Water Industry Registration Scheme Approved Utility Provider Construction of New Water Mains & Services Underground Water Pipe Leak Repairs Water Treatment…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchOxford, United KingdomHQ recorded Nov 6, 202611-502 contacts →

Exact match

“Eaton Environmental Services Ltd (EES Ltd) is a Water Treatment Company that has been operating for 24 years with the capability to provide viable, cost effective solutions for…”

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

Showing 17 of 35 potable water system operators based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 9,314 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Potable water system operators based in the United Kingdom at a glance

As of Nov 6, 2026
36.9%Verified-email coverage
721.8Average contacts per company
51-200Median size (employees)
8.6%Largest-city concentration · Hatfield
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
6
51-200
6
201-500
1
501-1,000
2
1,001-5,000
6
5,001-10,000
3

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 35 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 “potable water system operators” 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 9,314 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “potable water system operators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many potable water system operators are there based in the United Kingdom?

RevenueBase identified 35 company matches for potable water system operators associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

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

Which city has the most potable water system operators?

Hatfield leads with 3 company records, followed by Cambridge (2) and Coventry (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 9,314 professional contacts with verified work emails tracked across these 35 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.