Company lists · Data refreshed September 2026

Top 25 Heat pump installation companies based in the United Kingdom

Name: Heat pump installation companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 448 companies tracked

RevenueBase identified 448 heat pump installation companies headquartered in the United Kingdom as of September 2026 and tracks 2,707 professional contacts across them, including 837 with verified work emails. London is the largest hub.

This list covers heat pump installation companies 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 20, 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 20, 2026 86% judged on-target in blind review

448Companies

2,707Contacts tracked

837Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest heat pump installation companies based in the United Kingdom

Ranked by team size

Top 25 of 448 heat pump installation companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to heat pump installation companies: 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 20, 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 20, 2026
2	BOXT	Partial evidence	Leeds, United KingdomHQ checked Sep 20, 2026	51-200	116 contacts →
	Partial evidence “We started out as a trailblazing boiler installation company in 2017 – the first to offer everything effortlessly online.” Source: RevenueBase Database · checked Sep 20, 2026
3	Daikin Applied UK LTD	Strong evidence	Cramlington, United KingdomHQ checked Sep 20, 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 20, 2026
4	CPS Building Services LTD	Partial evidence	Cambridge, United KingdomHQ checked Sep 20, 2026	51-200	85 contacts →
	Partial evidence “CPS Building Services Ltd are experts in design, installation and maintenance of all mechanical and electrical services including renewables.” Source: RevenueBase Database · checked Sep 20, 2026
5	Scis Group	Indirect evidence	Fareham, United KingdomHQ checked Sep 20, 2026	51-200	60 contacts →
	Indirect evidence “Hello.” Source: RevenueBase Database · checked Sep 20, 2026
6	Cooltherm	Indirect evidence	Bridgeyate, United KingdomHQ checked Sep 20, 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 20, 2026
7	Heatforce	Indirect evidence	Cardiff, United KingdomHQ checked Sep 20, 2026	51-200	53 contacts →
	Indirect evidence “Heatforce has evolved through word of mouth and customer recommendations, growing into a company that now employs 120 dedicated staff with 40 years of expertise.” Source: RevenueBase Database · checked Sep 20, 2026
8	Quora Group	Indirect evidence	North Shields, United KingdomHQ checked Sep 20, 2026	51-200	33 contacts →
	Indirect evidence “Professional service supplying, installing and maintaining energy efficient HVAC systems.” Source: RevenueBase Database · checked Sep 20, 2026
9	Oceanair UK LTD	Indirect evidence	Mansfield, United KingdomHQ checked Sep 20, 2026	11-50	28 contacts →
	Indirect evidence “Oceanair is an award-winning distributor of air conditioning and heating products.” Source: RevenueBase Database · checked Sep 20, 2026
10	Taranis Engineering LTD	Indirect evidence	Flax Bourton, United KingdomHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “Taranis engineering was formed in October 2013 by the former director shareholders of JCW air-conditioning together with Jon Salter, John Lawrence and Alex Bond.” Source: RevenueBase Database · checked Sep 20, 2026
11	Aircon Services	Indirect evidence	Princes Risborough, United KingdomHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “At Aircon Services, we’ve been helping companies reduce their energy costs whilst ensuring their businesses are kept cool for over 30 years.” Source: RevenueBase Database · checked Sep 20, 2026
12	Alto Energy Limited	Strong evidence	Carterton, United KingdomHQ checked Sep 20, 2026	11-50	21 contacts →
	Strong evidence “Alto Energy's comprehensive Alto Assured MCS Umbrella Scheme provides unmatched support for heating businesses embarking on their heat pump journey.” Source: RevenueBase Database · checked Sep 20, 2026
13	Nerg LTD	Indirect evidence	Lincoln, United KingdomHQ checked Sep 20, 2026	11-50	21 contacts →
	Indirect evidence “We are a Midlands based business, that recommends and installs the right equipment to improves your business's profitability and carbon usage.” Source: RevenueBase Database · checked Sep 20, 2026
14	Warm Front LTD	Indirect evidence	Hyde, United KingdomHQ checked Sep 20, 2026	51-200	21 contacts →
	Indirect evidence “Warm Front Ltd is one of the leading providers of energy efficiency and building services in the North West of England.” Source: RevenueBase Database · checked Sep 20, 2026
15	Macbrookgas LTD	Indirect evidence	Banham, United KingdomHQ checked Sep 20, 2026	51-200	19 contacts →
	Indirect evidence “MACBROOKGAS LTD is a heating and Insulation company based out of United Kingdom.” Source: RevenueBase Database · checked Sep 20, 2026
16	The Edinburgh Boiler Company	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 20, 2026	11-50	19 contacts →
	Indirect evidence “Welcome to Edinburgh Boiler Company, your local energy specialist.” Source: RevenueBase Database · checked Sep 20, 2026
17	ECO Systems Group LTD	Strong evidence	Harold Wood, United KingdomHQ checked Sep 20, 2026	51-200	18 contacts →
	Strong evidence “Eco Systems Group has been delivering high-quality insulation, retrofit, solar solutions & air source heat pumps across the commercial and residential sectors for over 13 years.” Source: RevenueBase Database · checked Sep 20, 2026
18	Spruce	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	17 contacts →
	Strong evidence “We’re building tools to help ambitious heat pump installers run their business without all the pain, hassle, and manual process that they have to deal with at the moment.” Source: RevenueBase Database · checked Sep 20, 2026
19	Homely	Strong evidence	Manchester, United KingdomHQ checked Sep 20, 2026	11-50	17 contacts →
	Strong evidence “Homely’s smart heat pump controller makes heat pumps easier to fit, manage, and support.” Source: RevenueBase Database · checked Sep 20, 2026
20	HEX Energy LTD	Indirect evidence	Nuneaton, United KingdomHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “Our aim is to provide renewable energy systems for properties that would clearly benefit from them.” Source: RevenueBase Database · checked Sep 20, 2026
21	Cleanheat	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “CleanHeat are a London based Commercial Heating and engineering company working throughout central London and the Home Counties.” Source: RevenueBase Database · checked Sep 20, 2026
22	Ecogiants	Indirect evidence	Clitheroe, United KingdomHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “EcoGiants is a leading UK-based sustainable building retrofit specialist, delivering large-scale energy efficiency solutions for commercial and residential properties.” Source: RevenueBase Database · checked Sep 20, 2026
23	JET Environmental Systems LTD	Indirect evidence	Solihull, United KingdomHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Jet Environmental designs, manufactures, installs and maintains heating, ventilation and cooling systems for large volume, industrial, commercial warehouses.” Source: RevenueBase Database · checked Sep 20, 2026
24	IMS Heat Pumps Limited	Strong evidence	Perth, United KingdomHQ checked Sep 20, 2026	11-50	15 contacts →
	Strong evidence “IMS Heat Pumps designs and installs air source, ground source and water source heat pump systems for self-build, renovation, retrofit, custom-build and new-build projects across…” Source: RevenueBase Database · checked Sep 20, 2026
25	Better Planet	Indirect evidence	Potters Bar, United KingdomHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “Better Planet was founded in 2004 with a vision to make it easier and more affordable to use green alternatives for heating and electricity.” Source: RevenueBase Database · checked Sep 20, 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 installation companies. 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 installation companies.
Partial evidence: Its own public description names part of heat pump installation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name heat pump installation companies. 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 448 heat pump installation companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 837 reachable decision-makers.

Free signup · no credit card

View the full list →

Heat pump installation companies based in the United Kingdom at a glance

As of Sep 20, 2026

30.9%Verified-email coverage

6.0Average contacts per company

1-10Median size (employees)

7.4%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

257

11-50

155

51-200

201-500

501-1,000

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 448 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 installation companies, 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 installation companies”. 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 installation companies), 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 installation companies, 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, 837 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 20, 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 installation companies by metro

Heat pump installation companies in London33

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 installation companies, 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 installation companies are there based in the United Kingdom?

RevenueBase identified 448 heat pump installation companies 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 heat pump installation companies?

London leads with 33 headquartered companies, followed by Glasgow (10) and Bristol (8).

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 837 verified decision-maker contacts tracked across these 448 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 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 448 heat pump installation companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Heat pump installation companies by geography

Browse the directory

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.