Company lists · Data refreshed November 2026

Top 25 Gas system maintenance contractors based in the United Kingdom

RevenueBase identified 283 company matches for gas system maintenance contractors associated with the United Kingdom as of November 2026 and tracks 2,431 professional contacts across them, including 742 with verified work emails. London is the largest hub.

This list covers company matches for gas system maintenance contractors 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
283Companies
2,431Contacts tracked
742Verified emails
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The 25 largest gas system maintenance contractors based in the United Kingdom

Ranked by team size
Top 25 of 283 company matches for gas system maintenance contractors 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 matchKendal, United KingdomHQ recorded Nov 6, 2026201-500476 contacts →

Exact match

“TEAM is a leading industrial services company offering an array of specialized services related to the construction, maintenance, and monitoring of pressurized piping and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLeatherhead, United KingdomHQ recorded Nov 6, 2026501-1,000187 contacts →

Exact match

“T Brown Group was formed on the 1st April 1971.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWirksworth, United KingdomHQ recorded Nov 6, 2026201-500171 contacts →

Exact match

“Utilitec Services have provided niche operational support to the UK Water and Gas Industry since 1997.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchNormanton, United KingdomHQ recorded Nov 6, 202651-20094 contacts →

Exact match

“JBC Industrial Services is the leading name in Industrial Boiler and Burner service, maintenance, and repair.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchChesham, United KingdomHQ recorded Nov 6, 202651-20084 contacts →

Exact match

“Founded in 1967, SHJ is a leading supplier of medical & lab gas systems, solutions and services and a market leader in remote monitoring and energy saving technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchWimborne, United KingdomHQ recorded Nov 6, 2026201-50080 contacts →

Exact match

“JDT Utilities Ltd is a medium sized utility company that specialises in gas mains & domestic services replacement, repair, refurbishment and maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGlasgow, United KingdomHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“Established in 1996 we are a leading provider of Gas Service & Maintenance and installation of Heating Systems to the Social Housing Sector across Scotland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBasingstoke, United KingdomHQ recorded Nov 6, 202611-5057 contacts →

Exact match

“With over 30 years experience providing professional services in industry, CORGI Technical Services offers support and expertise indispensable to our clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“GEM Environmental Building Services LTD was founded 20 years ago originally based in East London.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBury St. Edmunds, United KingdomHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“The company specialises in being able to provide a bespoke service to the homeowners, landlords, managing agents and the commercial sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchCramlington, United KingdomHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Advanced Engineering Solutions Limited (AESL) is a specialist pipeline and pipeline equipment engineering business providing inspection, performance assessment and maintenance for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSkipton, United KingdomHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“H Clarke & Sons Ltd was first established in 1920 and has grown to become one of the most renowned independent heating and plumbing companies in the region.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchDuckmanton, United KingdomHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“Welcome to BeaconMedaes UK BeaconMedaes is the world's leading medical gas pipeline system (MGPS) turnkey provider with services including preventative maintenance contracts…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchTrafford Park, United KingdomHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Comprehensive Solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMelksham, United KingdomHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“HK Engineering Ltd is a leading engineering company specialising in electrical and gas testing and innovative solutions, with a solid commitment to excellence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAlva, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Speck & Burke – Laboratory & Workshop Gas Systems At Speck & Burke, we provide expert solutions for laboratory gas systems, combining technical precision with a commitment to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWinnersh, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Your HVAC, Gas and Mechanical all under one roof.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSt Albans, United KingdomHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“Bregan MainsFlow Ltd has firmly established itself within the utilities sector, offering comprehensive solutions for repair, replacement, maintenance, leakage detection and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchWorcestershire, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Ignis Group are a commercial Gas and HVAC specialist based in Worcestershire covering the West Midlands and surrounding counties.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBamber Bridge, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Lancashire Gas Services is dedicated to bringing you and your business the highest standards of workmanship in all aspects of the industry, from customer care through to the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCanterbury, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Aether Medical Gases Limited is a Medical and laboratory gas installation and maintenance company based in Canterbury”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchRosyth, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Scotland's leading Gas safe engineers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWinchester, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchCanterbury, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Design, Installation & Maintenance of Medical and High purity gas systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLeicester, United KingdomHQ recorded Nov 6, 202651-20010 contacts →

Exact match

“William Freer LTD provides you with expert and extensive solutions to your Installation, servicing, repair and maintenance needs.”

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

Showing 25 of 283 gas system maintenance contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 742 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Gas system maintenance contractors based in the United Kingdom at a glance

As of Nov 6, 2026
30.5%Verified-email coverage
8.6Average contacts per company
1-10Median size (employees)
6.4%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
168
11-50
80
51-200
16
201-500
5
501-1,000
1

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 283 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 “gas system maintenance contractors” 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 742 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 “gas system maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many gas system maintenance contractors are there based in the United Kingdom?

RevenueBase identified 283 company matches for gas system maintenance contractors 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?

Team, Inc. Uk, Africa, Caspian tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most gas system maintenance contractors?

London leads with 18 company records, followed by Glasgow (8) and Birmingham (5).

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 742 professional contacts with verified work emails tracked across these 283 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.

Ready to reach these companies? Verified emails and direct dials for all 283 gas system maintenance contractors based in the United Kingdom. Start with a free account, no credit card.

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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.