Company lists · Data refreshed September 2026

Top 25 Heat pump manufacturers based in the United Kingdom

Name: Heat pump 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 16, 2026 335 companies tracked

RevenueBase identified 335 heat pump manufacturers headquartered in the United Kingdom as of September 2026 and tracks 5,686 professional contacts across them, including 1,963 with verified work emails. London is the largest hub.

This list covers heat pump manufacturers headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

335Companies

5,686Contacts tracked

1,963Verified emails

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The 25 largest heat pump manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 335 heat pump manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to heat pump manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	BAXI	Indirect evidence	Warwick, United KingdomHQ checked Sep 16, 2026	1,001-5,000	850 contacts →
	Indirect evidence “We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Source: RevenueBase Database · checked Sep 16, 2026
2	Daikin UK	Indirect evidence	Weybridge, United KingdomHQ checked Sep 16, 2026	201-500	398 contacts →
	Indirect evidence “Experts in our field, Daikin UK is a leading supplier of heating, cooling and refrigeration solutions for commercial, residential and industrial applications.” Source: RevenueBase Database · checked Sep 16, 2026
3	Space Engineering Services LTD	Indirect evidence	Bristol, United KingdomHQ checked Sep 16, 2026	201-500	312 contacts →
	Indirect evidence “Space Engineering Services is the UK’s leading provider of refrigeration, heating, ventilation and air conditioning services.” Source: RevenueBase Database · checked Sep 16, 2026
4	Star Refrigeration	Indirect evidence	Glasgow, United KingdomHQ checked Sep 16, 2026	201-500	298 contacts →
	Indirect evidence “Star Refrigeration is a globally diversified cooling, heating, freezing, mechanical and electrical group of companies.” Source: RevenueBase Database · checked Sep 16, 2026
5	Ideal Heating	Strong evidence	Hull, United KingdomHQ checked Sep 16, 2026	501-1,000	286 contacts →
	Strong evidence “The UK’s leading heating manufacturer, providing reliable, sustainable warmth through boilers, heat pumps and controls Rated Excellent on Trustpilot Award-winning Keeping Homes…” Source: RevenueBase Database · checked Sep 16, 2026
6	Dimplex UK	Indirect evidence	Southampton, United KingdomHQ checked Sep 16, 2026	501-1,000	201 contacts →
	Indirect evidence “For over 75 years, Dimplex has been the trusted name for electric heating.” Source: RevenueBase Database · checked Sep 16, 2026
7	Vaillant UK	Indirect evidence	Belper, United KingdomHQ checked Sep 16, 2026	501-1,000	179 contacts →
	Indirect evidence “What does it take to deliver confidence at every stage of the heating journey?” Source: RevenueBase Database · checked Sep 16, 2026
8	Swegon Uk&i	Indirect evidence	Ashby-de-la-zouch, United KingdomHQ checked Sep 16, 2026	501-1,000	156 contacts →
	Indirect evidence “Swegon is a market leading supplier of energy efficient indoor climate, cooling and life safety systems.” Source: RevenueBase Database · checked Sep 16, 2026
9	Grayson Thermal Systems	Indirect evidence	Tyseley, United KingdomHQ checked Sep 16, 2026	201-500	153 contacts →
	Indirect evidence “Imagine what’s possible… That’s the question that drives us to push the boundaries of thermal management – delivering the highest levels of performance, efficiency, and…” Source: RevenueBase Database · checked Sep 16, 2026
10	TF Solutions	Indirect evidence	Burton Upon Trent, United KingdomHQ checked Sep 16, 2026	51-200	108 contacts →
	Indirect evidence “TF Solutions first opened its doors in 2001 with a passion and ambition to do the right thing, the right way.” Source: RevenueBase Database · checked Sep 16, 2026
11	Daikin Applied UK LTD	Strong evidence	Cramlington, United KingdomHQ checked Sep 16, 2026	51-200	97 contacts →
	Strong evidence “Daikin Applied (UK) Ltd (formerly McQuay UK Ltd) is the market leader in energy-efficient end-to-end HVAC solutions, including AHU and chiller products, heat pumps, service and…” Source: RevenueBase Database · checked Sep 16, 2026
12	Zehnder Group UK	Indirect evidence	Camberley, United KingdomHQ checked Sep 16, 2026	201-500	94 contacts →
	Indirect evidence “Zehnder Group is a leading international provider of indoor climate solutions, offering a comprehensive range of products and services for comfortable and healthy living…” Source: RevenueBase Database · checked Sep 16, 2026
13	Powrmatic Limited	Partial evidence	Ilminster, United KingdomHQ checked Sep 16, 2026	51-200	73 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
14	Ormandy Rycroft Engineering	Partial evidence	Bradford, United KingdomHQ checked Sep 16, 2026	51-200	65 contacts →
	Partial evidence “Ormandy Rycroft Engineering aims to be a market leading provider of world class heat transfer and packaged solutions through our integrated portfolio of products, and our…” Source: RevenueBase Database · checked Sep 16, 2026
15	Weatherite Group	Indirect evidence	West Bromwich, United KingdomHQ checked Sep 16, 2026	51-200	57 contacts →
	Indirect evidence “Weatherite Group provides air conditioning and entrance solutions to a range of customers nationally and internationally.” Source: RevenueBase Database · checked Sep 16, 2026
16	Cooltherm	Indirect evidence	Bridgeyate, United KingdomHQ checked Sep 16, 2026	51-200	54 contacts →
	Indirect evidence “With over 30 years of expertise, Cooltherm delivers sustainable HVAC solutions across healthcare, education, construction, data centres, factories & manufacturing, and warehouse &…” Source: RevenueBase Database · checked Sep 16, 2026
17	Mitsubishi Heavy Industries Air-Conditioning Europe	Indirect evidence	Uxbridge, United KingdomHQ checked Sep 16, 2026	51-200	50 contacts →
	Indirect evidence “Welcome to Mitsubishi Heavy Industries Air Conditioning Europe Ltd (MHIAE), a company created by MHI for all HVAC solutions across Europe.” Source: RevenueBase Database · checked Sep 16, 2026
18	Vokera By Riello	Indirect evidence	Hertfordshire, United KingdomHQ checked Sep 16, 2026	11-50	45 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
19	Fujitsu General AIR Conditioning UK LTD	Indirect evidence	Elstree, United KingdomHQ checked Sep 16, 2026	11-50	42 contacts →
	Indirect evidence “Fujitsu.” Source: RevenueBase Database · checked Sep 16, 2026
20	Lochinvar, UK	Partial evidence	Banbury, United KingdomHQ checked Sep 16, 2026	11-50	40 contacts →
	Partial evidence “Lochinvar designs, manufactures and distributes a comprehensive range of high efficiency gas fired water heaters and boilers for commercial and industrial applications.” Source: RevenueBase Database · checked Sep 16, 2026
21	Aermec UK	Indirect evidence	Rochford, United KingdomHQ checked Sep 16, 2026	1,001-5,000	33 contacts →
	Indirect evidence “Breathe Easy……Aermec have been in the Air Conditioning business for over 50 years!” Source: RevenueBase Database · checked Sep 16, 2026
22	Pitkin & Ruddock LTD	Strong evidence	Ipswich, United KingdomHQ checked Sep 16, 2026	11-50	32 contacts →
	Strong evidence “Refrigeration, heat recovery, ventilation, heat pumps and air-conditioning: At Pitkin & Ruddock our success for delivering complete temperature controlled solutions, service and…” Source: RevenueBase Database · checked Sep 16, 2026
23	AIR Vent Technology	Indirect evidence	Andover, United KingdomHQ checked Sep 16, 2026	11-50	32 contacts →
	Indirect evidence “Since 1996, our high-quality products, commitment to UK manufacturing and outstanding customer service have put us at the forefront of the heating and ventilation industry.” Source: RevenueBase Database · checked Sep 16, 2026
24	Artus AIR	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	31 contacts →
	Indirect evidence “Artus Air is an Air Tech company dedicated to improving the way buildings are cooled and heated, globally by reducing carbon impact and improving the comfort of occupants.” Source: RevenueBase Database · checked Sep 16, 2026
25	GRE Ltd. Thermal Engineering And Cryogenics	Indirect evidence	Willand, United KingdomHQ checked Sep 16, 2026	11-50	31 contacts →
	Indirect evidence “GRE is a privately owned business based in the UK.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: heat pump manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names heat pump manufacturers.
Partial evidence: Its own public description names part of heat pump manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name heat pump manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 335 heat pump manufacturers based in the United Kingdom

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Heat pump manufacturers based in the United Kingdom at a glance

As of Sep 16, 2026

34.5%Verified-email coverage

17.0Average contacts per company

11-50Median size (employees)

8.4%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

151

11-50

130

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 335 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among heat pump manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “heat pump manufacturers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names heat pump manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among heat pump manufacturers, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 1,963 across the full list. 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 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Heat pump manufacturers by metro

Heat pump manufacturers in London28

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names heat pump manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many heat pump manufacturers are there based in the United Kingdom?

RevenueBase identified 335 heat pump manufacturers headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

BAXI, headquartered in Warwick, tops this list with the largest team on record.

Which city has the most heat pump manufacturers?

London leads with 28 headquartered companies, followed by Bristol (6) and Glasgow (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,963 verified decision-maker contacts tracked across these 335 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 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 Smart Search, 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.