Company lists · Data refreshed November 2026

Top 25 Steam system installers based in the United Kingdom

RevenueBase identified 289 company matches for steam system installers associated with the United Kingdom as of November 2026 and tracks 3,252 professional contacts across them, including 482 with verified work emails. London is the largest hub.

This list covers company matches for steam 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 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
289Companies
3,252Contacts tracked
482Verified emails
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The 25 largest steam system installers based in the United Kingdom

Ranked by team size
Top 25 of 289 company matches for steam system installers 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 matchCheltenham, United KingdomHQ recorded Nov 6, 20265,001-10,0001,847 contacts →

Exact match

“Expertise | Solutions | Sustainability A FTSE-100 company, Spirax Sarco is the world's leading provider of steam system solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAnnan, United KingdomHQ recorded Nov 6, 2026201-500120 contacts →

Exact match

“Cochran has been embedded within industrial boiler manufacturing since 1878.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchKeighley, United KingdomHQ recorded Nov 6, 202651-20099 contacts →

Exact match

“Your industrial boiler is at the heart of your operations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchGlasgow, United KingdomHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Heating - Pipework - Process - Maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMilton Keynes, United KingdomHQ recorded Nov 6, 202611-5042 contacts →

Exact match

“Plumbing & Gas Solutions Ltd are a Constructionline and CHAS accredited Commercial Plumbing & Heating contractor based in Milton Keynes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact matchRochdale, United KingdomHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“McQuillan Boiler Services was established in 1989 with the intention of offering our loyal customers reliable support and servicing with both their industrial and commercial steam…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“CleanHeat are a London based Commercial Heating and engineering company working throughout central London and the Home Counties.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBrough, United KingdomHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Eco Engineering Installations Ltd is a privately owned multi-disciplined mechanical engineering company providing support and services to a number of industrial sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBiggin Hill, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Servicing commercial & industrial boiler plants across the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchKeighley, United KingdomHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“CLEVER ENERGY BOILERS is part of the Green Deal Factory.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHalesowen, United KingdomHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Steam Plant Engineering Ltd are independent steam specialists offering; boiler repair, installation, troubleshooting and inspection offering solutions for everything from a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchOldbury, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Formed in 1982, Lord Combustion Services specialise in the design, installation, repair and maintenance of sustainable heating and hot water systems, supporting over businesses…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWolverhampton, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Thorne International Boiler Services Ltd design and build fire tube, waste heat and water tube boilers to suit the project brief.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNairn, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Boiler & Valve Engineering offers comprehensive steam engineering solutions, managing the entire steam and condensate loop.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNewark, United KingdomHQ recorded Nov 6, 202611-509 contacts →

Exact match

“At Turkington Engineering & Welding Services, we bring over 100 years of combined experience to the engineering and welding sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWeston, United KingdomHQ recorded Nov 6, 20261-109 contacts →

Exact match

“MFL Mechanical is a multi-disciplinary family-run business, based in Hertfordshire, with over 40 years of collective experience in providing a diverse range of mechanical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBury, United KingdomHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Swiftheat provide commercial heating and industrial heating installation, repairs, servicing and maintenance across the North West of England.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHassocks, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Cedar Green Projects is a national turn-key Commercial heating Company that offer maintenance, repair, servicing and installation including in-house temporary boiler solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchOrpington, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“We’ve spent decades building a reputation as one of the UK’s leading plumbing, heating and cooling specialists, and it’s all down to the way we work.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchReigate, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“JB Group Ltd is a well-known plumbing and heating business located in Reigate, Surrey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchFleckney, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Founded in 1982, Flomar Ltd was created to meet the demand for knowledge in steam production.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Tredion provides services inclusive of PPMs, reactives and new installations for Gas boiler and its secondary plant including pumps, pressurisation units and control panels.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchRedhill, United KingdomHQ recorded Nov 6, 202611-507 contacts →

Exact match

“We are pleased to celebrate over 80 years of successful trading and our reputation has been built on quality, strong values and dependability.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchStockport, United KingdomHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Flueclean have been providing Commercial and Industrial heating services throughout the North West for over 50 years.”

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

Showing 25 of 289 steam system installers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 482 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Steam system installers based in the United Kingdom at a glance

As of Nov 6, 2026
14.8%Verified-email coverage
11.3Average contacts per company
1-10Median size (employees)
5.5%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
159
11-50
85
51-200
12
201-500
3
501-1,000
1
5,001-10,000
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 289 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 “steam 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 482 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 “steam system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many steam system installers are there based in the United Kingdom?

RevenueBase identified 289 company matches for steam system installers 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?

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

Which city has the most steam system installers?

London leads with 16 company records, followed by Glasgow (5) and Manchester (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 482 professional contacts with verified work emails tracked across these 289 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.