Company lists · Data refreshed September 2026

Top 25 Oil boiler manufacturers based in the United Kingdom

Name: Oil boiler manufacturers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 414 companies tracked

RevenueBase identified 414 company matches for oil boiler manufacturers associated with the United Kingdom as of September 2026 and tracks 2,841 professional contacts across them, including 754 with verified work emails. London is the largest hub.

This list covers company matches for oil boiler manufacturers associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 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 Sep 17, 2026 How this list was built

414Companies

2,841Contacts tracked

754Verified emails

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The 25 largest oil boiler manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 414 company matches for oil boiler manufacturers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Ideal Heating	Exact match	Hull, United KingdomHQ recorded Sep 17, 2026	501-1,000	286 contacts →
	Exact match “The UK’s leading heating manufacturer, providing reliable, sustainable warmth through boilers, heat pumps and controls Rated Excellent on Trustpilot Award-winning Keeping Homes…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Swale Heating Part Of Sureserve	Exact match	Sittingbourne, United KingdomHQ recorded Sep 17, 2026	201-500	136 contacts →
	Exact match “As an established heating company based in Kent, Swale Heating are proud to offer expert guidance in choosing the best heating and boiler systems & products available today.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Cochran	Exact match	Annan, United KingdomHQ recorded Sep 17, 2026	201-500	110 contacts →
	Exact match “Cochran has been embedded within industrial boiler manufacturing since 1878.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Byworth Boilers Limited	Exact match	Keighley, United KingdomHQ recorded Sep 17, 2026	51-200	96 contacts →
	Exact match “Your industrial boiler is at the heart of your operations.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	JBC	Exact match	Normanton, United KingdomHQ recorded Sep 17, 2026	51-200	86 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 · Sep 17, 2026 · View company records in RevenueBase
6	Intergas Heating LTD	Exact match	Kidderminster, United KingdomHQ recorded Sep 17, 2026	201-500	61 contacts →
	Exact match “We’re Dutch, we manufacture ultra-efficient domestic boilers and we want to make the world a better place for all of us.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Dunphy Combustion Limited	Exact match	Rochdale, United KingdomHQ recorded Sep 17, 2026	51-200	53 contacts →
	Exact match “Dunphy Combustion Ltd design, manufacture, install and maintain a range of combustion equipment, digital control solutions and turnkey prefabricated, packaged boiler houses.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Hamworthy Heating LTD	Exact match	Hull, United KingdomHQ recorded Sep 17, 2026	51-200	45 contacts →
	Exact match “Hamworthy Heating is a British manufacturer and supplier of commercial heating and hot water products.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Vokera By Riello	Exact match	Hertfordshire, United KingdomHQ recorded Sep 17, 2026	11-50	45 contacts →
	Exact match “For over 40 years, Vokèra has been a trusted name in home heating across the UK and Ireland, delivering reliable, energy efficient solutions for domestic and light commercial…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Lochinvar, UK	Exact match	Banbury, United KingdomHQ recorded Sep 17, 2026	11-50	40 contacts →
	Exact match “Lochinvar designs, manufactures and distributes a comprehensive range of high efficiency gas fired water heaters and boilers for commercial and industrial applications.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Warmflow Engineering Co. Limited	Exact match	Lisburn, United KingdomHQ recorded Sep 17, 2026	51-200	38 contacts →
	Exact match “Warmflow specialise in design, manufacturing, fabrication, sub assembly and kitting solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Fulton Boiler Works GB Limited	Exact match	Bristol, United KingdomHQ recorded Sep 17, 2026	51-200	38 contacts →
	Exact match “Fulton Ltd specialises in the design and manufacture of steam, hot water, thermal fluid boilers, packaged plant rooms and skid-mounted systems for industrial, commercial and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Heatable	Exact match	Warrington, United KingdomHQ recorded Sep 17, 2026	11-50	37 contacts →
	Exact match “The UK's trusted boiler, aircon and renewable installers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Babcock Wanson UK LTD	Exact match	Borehamwood, United KingdomHQ recorded Sep 17, 2026	51-200	36 contacts →
	Exact match “Babcock Wanson offers a complete range of products and services for your boiler house.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Atag Heating Technology UK Limited	Exact match	Dunfermline, United KingdomHQ recorded Sep 17, 2026	51-200	31 contacts →
	Exact match “BUILT TO LAST ATAG truly is a unique company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Johnson & Starley LTD	Exact match	Northampton, United KingdomHQ recorded Sep 17, 2026	51-200	26 contacts →
	Exact match “As a market leader in providing energy efficient heating and ventilation solutions, Johnson & Starley has an impressive portfolio of products.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	HCS Mechanical Services	Exact match	Skipton, United KingdomHQ recorded Sep 17, 2026	51-200	26 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 · Sep 17, 2026 · View company records in RevenueBase
18	Strebel UK	Exact match	Farnborough, United KingdomHQ recorded Sep 17, 2026	11-50	25 contacts →
	Exact match “Strebel is one of Europe's leading suppliers of commercial heating and hot water solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Herz UK LTD	Exact match	Peterborough, United KingdomHQ recorded Sep 17, 2026	11-50	21 contacts →
	Exact match “Herz UK Ltd is based in Peterborough and has operated in the UK for over 50 years.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Geoff Castles Boiler Services Limited	Exact match	Carrickfergus, United KingdomHQ recorded Sep 17, 2026	51-200	19 contacts →
	Exact match “We offer a complete service from the supply, delivery, offloading and installation of a boiler to the ongoing maintenance with 24 hour breakdown cover.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Macbrookgas LTD	Exact match	Banham, United KingdomHQ recorded Sep 17, 2026	51-200	19 contacts →
	Exact match “MACBROOKGAS LTD is a heating and Insulation company based out of United Kingdom.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Mcquillan Boiler Services LTD	Exact match	Rochdale, United KingdomHQ recorded Sep 17, 2026	51-200	18 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 · Sep 17, 2026 · View company records in RevenueBase
23	Clever Energy Boilers	Exact match	Keighley, United KingdomHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “CLEVER ENERGY BOILERS is part of the Green Deal Factory.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Combat Heating Solutions LTD	Exact match	Wednesbury, United KingdomHQ recorded Sep 17, 2026	51-200	13 contacts →
	Exact match “Combat Heating Solutions has been an established name in the commercial heating industry for more than 50 years.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Electric Heating Company	Exact match	Blantyre, United KingdomHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “The Electric Heating Company have developed their product portfolio to accommodate almost any Central Heating and Hot Water requirement.” Recorded in the RevenueBase company graph · Sep 17, 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 “oil boiler manufacturers”. 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 414 oil boiler manufacturers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 754 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil boiler manufacturers based in the United Kingdom at a glance

As of Sep 17, 2026

26.5%Verified-email coverage

6.9Average contacts per company

1-10Median size (employees)

5.3%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

280

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 414 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 “oil boiler manufacturers” 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 754 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 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 “oil boiler manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil boiler manufacturers are there based in the United Kingdom?

RevenueBase identified 414 company matches for oil boiler manufacturers associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

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

Which city has the most oil boiler manufacturers?

London leads with 22 company records, followed by Leeds (7) and Norwich (7).

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 754 professional contacts with verified work emails tracked across these 414 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 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.