Company lists · Data refreshed October 2026

Top 25 Electric heating system manufacturers based in the United Kingdom

Name: Electric heating system manufacturers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 425 companies tracked

RevenueBase identified 425 company matches for electric heating system manufacturers associated with the United Kingdom as of October 2026 and tracks 5,500 professional contacts across them, including 1,515 with verified work emails. London is the largest hub.

This list covers company matches for electric heating system 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 October 11, 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 Oct 11, 2026 How this list was built

425Companies

5,500Contacts tracked

1,515Verified emails

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The 25 largest electric heating system manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 425 company matches for electric heating system manufacturers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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	BAXI	Exact match	Warwick, United KingdomHQ recorded Oct 11, 2026	1,001-5,000	884 contacts →
	Exact match “We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2	Ideal Heating	Exact match	Hull, United KingdomHQ recorded Oct 11, 2026	501-1,000	302 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 · Oct 11, 2026 · View company records in RevenueBase
3	Dimplex UK	Exact match	Southampton, United KingdomHQ recorded Oct 11, 2026	501-1,000	195 contacts →
	Exact match “For over 75 years, Dimplex has been the trusted name for electric heating.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4	Vaillant UK	Exact match	Belper, United KingdomHQ recorded Oct 11, 2026	501-1,000	190 contacts →
	Exact match “What does it take to deliver confidence at every stage of the heating journey?” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5	Exheat	Exact match	Watton, United KingdomHQ recorded Oct 11, 2026	51-200	140 contacts →
	Exact match “At EXHEAT, we design and manufacture electric process heaters and control solutions.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6	Grant Engineering UK LTD	Exact match	Swindon, United KingdomHQ recorded Oct 11, 2026	51-200	120 contacts →
	Exact match “We are a leading supplier of sustainable heating systems, including HVO boilers, air source heat pumps, solar thermal, hot water storage cylinders, aluminium radiators and…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7	Stelrad LTD	Exact match	Mexborough, United KingdomHQ recorded Oct 11, 2026	201-500	81 contacts →
	Exact match “Celebrating our 90th anniversary, Stelrad is the UK market leader in central heating radiators, providing the most extensive selection of radiators in various sizes compared to…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8	Rointe Heating	Exact match	Peterborough, United KingdomHQ recorded Oct 11, 2026	51-200	79 contacts →
	Exact match “With over 35 years of experience, and as Europe's leading manufacturer of electric heating, Rointe is ideally placed to help our customers choose the right heating system, at the…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9	Nu-Heat Underfloor Heating & Renewables	Exact match	Honiton, United KingdomHQ recorded Oct 11, 2026	51-200	71 contacts →
	Exact match “As the UK's largest supplier of warm water underfloor heating and integrated renewables, Nu‑Heat delivers fully designed, energy efficient systems to installers, housebuilders…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10	Powrmatic Limited	Exact match	Ilminster, United KingdomHQ recorded Oct 11, 2026	51-200	69 contacts →
	Exact match “Powrmatic is a leading manufacturer and solution provider of advanced HVAC systems, including warm air heating, radiant heating, electric and water-based systems, as well as…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11	Heat Trace Limited	Exact match	Frodsham, United KingdomHQ recorded Oct 11, 2026	51-200	64 contacts →
	Exact match “Heat Trace Limited (HTL) is an innovative British manufacturer of electric heating cables & associated equipment.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12	Intergas Heating LTD	Exact match	Kidderminster, United KingdomHQ recorded Oct 11, 2026	201-500	63 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 · Oct 11, 2026 · View company records in RevenueBase
13	Alpha Heating Innovation	Exact match	Wrotham Heath, United KingdomHQ recorded Oct 11, 2026	51-200	55 contacts →
	Exact match “Established over 50 years, Alpha is recognised today as one of the leaders in the UK’s heating industry.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14	WMS Underfloor Heating	Exact match	Brookmans Park, United KingdomHQ recorded Oct 11, 2026	11-50	55 contacts →
	Exact match “Leading supplier and installer of underfloor heating for residential developments in the UK.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15	Hamworthy Heating LTD	Exact match	Hull, United KingdomHQ recorded Oct 11, 2026	51-200	49 contacts →
	Exact match “Hamworthy Heating is a British manufacturer and supplier of commercial heating and hot water products.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16	Elecro Engineering LTD	Exact match	Stevenage, United KingdomHQ recorded Oct 11, 2026	11-50	46 contacts →
	Exact match “Elecro Engineering are considered one of the leading international manufacturers and specialists in the field of swimming pool water heating.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17	Vokera By Riello	Exact match	Hertfordshire, United KingdomHQ recorded Oct 11, 2026	11-50	44 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 · Oct 11, 2026 · View company records in RevenueBase
18	GDC Group LTD	Exact match	Southampton, United KingdomHQ recorded Oct 11, 2026	51-200	42 contacts →
	Exact match “GDC is the holding company for some of the best known brands in the heating industry, including Dimplex, Creda NOBO, Faber, Robinson Willey, Valor, Wonderfire, Glen, Unidare…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19	SPC	Exact match	Leicester, United KingdomHQ recorded Oct 11, 2026	51-200	39 contacts →
	Exact match “SPC is a British manufacturer specialising in supplying heating and cooling solutions.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20	Lochinvar, UK	Exact match	Banbury, United KingdomHQ recorded Oct 11, 2026	11-50	36 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 · Oct 11, 2026 · View company records in RevenueBase
21	Backer Heatrod LTD	Exact match	Bolton, United KingdomHQ recorded Oct 11, 2026	11-50	36 contacts →
	Exact match “Backer Heatrod manufacture both domestic and industrial electric heating products and solutions.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22	Castrads	Exact match	Stockport, United KingdomHQ recorded Oct 11, 2026	51-200	35 contacts →
	Exact match “Castrads, established in England in 2006, manufactures custom-built, custom-finished radiators as well as controls and fittings that are suitable for both steam and hydronic…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23	Smith's EP UK	Exact match	Chelmsford, United KingdomHQ recorded Oct 11, 2026	51-200	35 contacts →
	Exact match “Founded in 1991, Smith’s EP UK has grown organically to become the UK’s leading supplier of hydronic fan convector products, providing versatile, energy efficient heating…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24	Warmflow Engineering Co. Limited	Exact match	Lisburn, United KingdomHQ recorded Oct 11, 2026	51-200	33 contacts →
	Exact match “Warmflow specialise in design, manufacturing, fabrication, sub assembly and kitting solutions.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25	Ambiente Systems LTD	Exact match	Hatfield, United KingdomHQ recorded Oct 11, 2026	11-50	32 contacts →
	Exact match “Ambiente Systems Ltd has been trading since 2006 and specialises in the design, manufacture and supply of hydronic underfloor heating systems to the trade.” Recorded in the RevenueBase company graph · Oct 11, 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 “electric heating system 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 425 electric heating system manufacturers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,515 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electric heating system manufacturers based in the United Kingdom at a glance

As of Oct 11, 2026

27.5%Verified-email coverage

12.9Average contacts per company

11-50Median size (employees)

5.4%Largest-city concentration · London

Oct 11, 2026Page data refreshed

Companies by employee count

1-10

198

11-50

143

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 425 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 “electric heating system 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 1,515 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 11, 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 “electric heating system manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electric heating system manufacturers are there based in the United Kingdom?

RevenueBase identified 425 company matches for electric heating system manufacturers 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?

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

Which city has the most electric heating system manufacturers?

London leads with 23 company records, followed by Leeds (9) and Birmingham (8).

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 1,515 professional contacts with verified work emails tracked across these 425 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 11, 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.