Company lists · Data refreshed September 2026

Top 25 Industrial heat pump manufacturers based in the United Kingdom

Name: Industrial 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 17, 2026 143 companies tracked

RevenueBase identified 143 industrial heat pump manufacturers headquartered in the United Kingdom as of September 2026 and tracks 1,569 professional contacts across them, including 573 with verified work emails. London is the largest hub.

This list covers industrial 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 17, 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 17, 2026 86% judged on-target in blind review

143Companies

1,569Contacts tracked

573Verified emails

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The 25 largest industrial heat pump manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 143 industrial heat pump manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial 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	Vaillant UK	Indirect evidence	Belper, United KingdomHQ checked Sep 17, 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 17, 2026
2	Aspen Pumps Group	Partial evidence	Hailsham, United KingdomHQ checked Sep 17, 2026	201-500	145 contacts →
	Partial evidence “Aspen Pumps Group was founded in 1992 by three engineers who saw increased demand in the air conditioning industry for a reliable way to remove condensate water.” Source: RevenueBase Database · checked Sep 17, 2026
3	Daikin Applied UK LTD	Strong evidence	Cramlington, United KingdomHQ checked Sep 17, 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 17, 2026
4	Cooltherm	Indirect evidence	Bridgeyate, United KingdomHQ checked Sep 17, 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 17, 2026
5	Vokera By Riello	Indirect evidence	Hertfordshire, United KingdomHQ checked Sep 17, 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 17, 2026
6	Lochinvar, UK	Strong evidence	Banbury, United KingdomHQ checked Sep 17, 2026	11-50	40 contacts →
	Strong 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 17, 2026
7	Aermec UK	Indirect evidence	Rochford, United KingdomHQ checked Sep 17, 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 17, 2026
8	Pump Action	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “Trading since 1994, our branches in Edinburgh, Glasgow, Aberdeen and Manchester are providing the highest possible level of customer focused sales and service throughout the…” Source: RevenueBase Database · checked Sep 17, 2026
9	GRE Ltd. Thermal Engineering And Cryogenics	Indirect evidence	Willand, United KingdomHQ checked Sep 17, 2026	11-50	31 contacts →
	Indirect evidence “GRE is a privately owned business based in the UK.” Source: RevenueBase Database · checked Sep 17, 2026
10	Oceanair UK LTD	Indirect evidence	Mansfield, United KingdomHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Oceanair is an award-winning distributor of air conditioning and heating products.” Source: RevenueBase Database · checked Sep 17, 2026
11	Johnson & Starley LTD	Indirect evidence	Northampton, United KingdomHQ checked Sep 17, 2026	51-200	26 contacts →
	Indirect evidence “As a market leader in providing energy efficient heating and ventilation solutions, Johnson & Starley has an impressive portfolio of products.” Source: RevenueBase Database · checked Sep 17, 2026
12	Transtherm Cooling Industries LTD	Partial evidence	Coventry, United KingdomHQ checked Sep 17, 2026	51-200	23 contacts →
	Partial evidence “We hold a unique position as the world’s only manufacturer capable of designing and building all products for a complete, integrated cooling loop: Dry & Adiabatic Coolers, Coolant…” Source: RevenueBase Database · checked Sep 17, 2026
13	Essco Group	Partial evidence	Southampton, United KingdomHQ checked Sep 17, 2026	11-50	20 contacts →
	Partial evidence “Essco design and supply energy efficient products and systems to the heating, ventilating, air conditioning and process industries.” Source: RevenueBase Database · checked Sep 17, 2026
14	Synchrostor	Strong evidence	Edinburgh, United KingdomHQ checked Sep 17, 2026	11-50	19 contacts →
	Strong evidence “SynchroStor have developed a novel high-temperature heat pump (up to 300degC in single-stage lift) for industrial decarbonisation.” Source: RevenueBase Database · checked Sep 17, 2026
15	Schwank UK	Indirect evidence	Doncaster, United KingdomHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “The Schwank Group.” Source: RevenueBase Database · checked Sep 17, 2026
16	E. J. Bowman Birmingham LTD	Strong evidence	Birmingham, United KingdomHQ checked Sep 17, 2026	51-200	15 contacts →
	Strong evidence “Manufacturing heat exchangers and oil coolers for industrial and commercial applications for over 100 years.” Source: RevenueBase Database · checked Sep 17, 2026
17	Showersave	Indirect evidence	Ballyclare, United KingdomHQ checked Sep 17, 2026	1-10	14 contacts →
	Indirect evidence “Showersave is a market-leading WWHRS, offering innovative, affordable solutions to reduce energy consumption and support sustainable showering.” Source: RevenueBase Database · checked Sep 17, 2026
18	Clade Engineering Systems B Corp Certified	Indirect evidence	Leeds, United KingdomHQ checked Sep 17, 2026	51-200	13 contacts →
	Indirect evidence “At Clade we lead, we don’t follow.” Source: RevenueBase Database · checked Sep 17, 2026
19	EOC Services LTD	Indirect evidence	Downham Market, United KingdomHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “EOC Services has been a specialist in the air conditioning industry since 1991.” Source: RevenueBase Database · checked Sep 17, 2026
20	Ventive Limited	Strong evidence	Kingston Upon Thames, United KingdomHQ checked Sep 17, 2026	1-10	12 contacts →
	Strong evidence “Ventive designs and manufactures naturally intelligent Heating and Ventilation solutions with both heat recovery and comfort cooling.” Source: RevenueBase Database · checked Sep 17, 2026
21	Econotherm UK LTD	Strong evidence	Bridgend, United KingdomHQ checked Sep 17, 2026	11-50	12 contacts →
	Strong evidence “Design and manufacturing of heat pipes and heat exchangers for use in diverse areas of industrial waste heat recovery.” Source: RevenueBase Database · checked Sep 17, 2026
22	GO Geothermal LTD	Strong evidence	Newton Aycliffe, United KingdomHQ checked Sep 17, 2026	11-50	11 contacts →
	Strong evidence “Go Geothermal Ltd has supplied the UK market with high quality air and ground source heat pumps and associated components since 2006.” Source: RevenueBase Database · checked Sep 17, 2026
23	Citech Energy Recovery Solutions UK LTD	Partial evidence	Hessle, United KingdomHQ checked Sep 17, 2026	11-50	11 contacts →
	Partial evidence “CiTECH’s commitment to the oil and gas industry over the past 8 decades has resulted in the design and delivery of over 220 specialised gas turbine heat recovery systems.” Source: RevenueBase Database · checked Sep 17, 2026
24	Meridian Cooling LTD	Strong evidence	Poole, United KingdomHQ checked Sep 17, 2026	11-50	11 contacts →
	Strong evidence “MERIDIAN COOLING LTD are specialists in air conditioning, ventilation and air and ground source heat pumps for residential and commercial properties in Bournemouth and Poole.” Source: RevenueBase Database · checked Sep 17, 2026
25	Thermtech	Strong evidence	Manchester, United KingdomHQ checked Sep 17, 2026	11-50	11 contacts →
	Strong evidence “We design, manufacture and install bespoke industrial waste heat recovery systems with unrivaled technical excellence and through a highly skilled workforce.” Source: RevenueBase Database · checked Sep 17, 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: industrial 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 industrial heat pump manufacturers.
Partial evidence: Its own public description names part of industrial 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 industrial 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 143 industrial heat pump manufacturers based in the United Kingdom

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Industrial heat pump manufacturers based in the United Kingdom at a glance

As of Sep 17, 2026

36.5%Verified-email coverage

11.0Average contacts per company

11-50Median size (employees)

9.1%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 143 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 industrial 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 “industrial 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 industrial 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 industrial 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, 573 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 17, 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.

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 industrial 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 industrial heat pump manufacturers are there based in the United Kingdom?

RevenueBase identified 143 industrial 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?

Vaillant UK, headquartered in Belper, tops this list with the largest team on record.

Which city has the most industrial heat pump manufacturers?

London leads with 13 headquartered companies, followed by Derby (3) and Edinburgh (3).

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 573 verified decision-maker contacts tracked across these 143 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 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 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.