Company lists · Data refreshed September 2026

Top 25 Geothermal cooling contractors based in the United Kingdom

Name: Geothermal cooling contractors 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 161 companies tracked

RevenueBase identified 161 geothermal cooling contractors headquartered in the United Kingdom as of September 2026 and tracks 1,061 professional contacts across them, including 393 with verified work emails. London is the largest hub.

This list covers geothermal cooling contractors 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

161Companies

1,061Contacts tracked

393Verified emails

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

The 25 largest geothermal cooling contractors based in the United Kingdom

Ranked by team size

Top 25 of 161 geothermal cooling contractors 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 geothermal cooling contractors: 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	Aqua Cooling LTD	Indirect evidence	Eastleigh, United KingdomHQ checked Sep 16, 2026	51-200	80 contacts →
	Indirect evidence “At Aqua we consult, design, install and service a wide range of innovative temperature control solutions for purchase or hire across the UK and further afield.” Source: RevenueBase Database · checked Sep 16, 2026
2	Rendesco	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	60 contacts →
	Indirect evidence “Rendesco is the UK’s leading clean energy tech developer and operator, focusing on the electrification of heat using heat pumps and heat networks to decarbonise Britain’s…” Source: RevenueBase Database · checked Sep 16, 2026
3	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
4	Usystems, A Brand Of Legrand	Indirect evidence	Bedford, United KingdomHQ checked Sep 16, 2026	51-200	47 contacts →
	Indirect evidence “Power, water, energy, safety, cost and capacity.” Source: RevenueBase Database · checked Sep 16, 2026
5	Taranis Engineering LTD	Indirect evidence	Flax Bourton, United KingdomHQ checked Sep 16, 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 16, 2026
6	Aircon Services	Indirect evidence	Princes Risborough, United KingdomHQ checked Sep 16, 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 16, 2026
7	Transtherm Cooling Industries LTD	Partial evidence	Coventry, United KingdomHQ checked Sep 16, 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 16, 2026
8	HEX Energy LTD	Indirect evidence	Nuneaton, United KingdomHQ checked Sep 16, 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 16, 2026
9	Home & Industrial Heating Services Limited	Indirect evidence	Eastleigh, United KingdomHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “H&I (Home & Industrial) Heating was established in 1972 as a sole trader/partnership for the Heating Industry.” Source: RevenueBase Database · checked Sep 16, 2026
10	JET Environmental Systems LTD	Partial evidence	Solihull, United KingdomHQ checked Sep 16, 2026	11-50	16 contacts →
	Partial evidence “Jet Environmental designs, manufactures, installs and maintains heating, ventilation and cooling systems for large volume, industrial, commercial warehouses.” Source: RevenueBase Database · checked Sep 16, 2026
11	IMS Heat Pumps Limited	Indirect evidence	Perth, United KingdomHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect 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 16, 2026
12	Better Planet	Indirect evidence	Potters Bar, United KingdomHQ checked Sep 16, 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 16, 2026
13	Nicholls Boreholes & Ground Source	Indirect evidence	Kirdford, United KingdomHQ checked Sep 16, 2026	51-200	14 contacts →
	Indirect evidence “Nicholls Boreholes & Ground Source is an established, industry leading, family-run, specialist drilling company.” Source: RevenueBase Database · checked Sep 16, 2026
14	Townrock Energy	Partial evidence	Edinburgh City, United KingdomHQ checked Sep 16, 2026	11-50	14 contacts →
	Partial evidence “We are an award-winning geothermal company based in Edinburgh, Scotland and a leading specialist in all aspects of the UK’s geothermal resources.” Source: RevenueBase Database · checked Sep 16, 2026
15	EOC Services LTD	Indirect evidence	Downham Market, United KingdomHQ checked Sep 16, 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 16, 2026
16	Renewable Heat Installations And Servicing	Partial evidence	Falkirk, United KingdomHQ checked Sep 16, 2026	11-50	13 contacts →
	Partial evidence “Having previously worked for a large national mechanical electrical contractor in the renewable energy department, we saw a gap in the renewable energy market for quality ground…” Source: RevenueBase Database · checked Sep 16, 2026
17	Allcool London	Partial evidence	Barking, United KingdomHQ checked Sep 16, 2026	1-10	11 contacts →
	Partial evidence “Allcool for all your Heating and Cooling Solutions An established company with over 100 years combined experience and knowledge in the generator and heat exchange industry Allcool…” Source: RevenueBase Database · checked Sep 16, 2026
18	Diamond Green Energy LTD	Indirect evidence	Fareham, United KingdomHQ checked Sep 16, 2026	11-50	10 contacts →
	Indirect evidence “We are a family run renewable energy installation, service and repair company based in Fareham, Hampshire.” Source: RevenueBase Database · checked Sep 16, 2026
19	Solaris Energy	Indirect evidence	Canterbury, United KingdomHQ checked Sep 16, 2026	11-50	10 contacts →
	Indirect evidence “Solaris Energy was formed in January 2017 with the core of our business being focused solely on the design and installation of ground and air source heat pumps.” Source: RevenueBase Database · checked Sep 16, 2026
20	The Energy LAB UK	Partial evidence	Barnstaple, United KingdomHQ checked Sep 16, 2026	1-10	9 contacts →
	Partial evidence “Energy Lab has been supporting specifiers, developers and installers of geothermal and air source heat pumps since 2012.” Source: RevenueBase Database · checked Sep 16, 2026
21	Genius Energy LAB Ground Source Heat Pump System And Heat Network Designers	Indirect evidence	Market Bosworth, United KingdomHQ checked Sep 16, 2026	11-50	9 contacts →
	Indirect evidence “The team at Genius Energy Lab have been designing Ground Source Heat Pump systems for over 20 years and consider ourselves the best at what we do.” Source: RevenueBase Database · checked Sep 16, 2026
22	PDP Services Limited	Indirect evidence	Burgess Hill, United KingdomHQ checked Sep 16, 2026	11-50	9 contacts →
	Indirect evidence “PDP Services – Trusted Experts in Solar Energy, Heat Pumps, Electrical, Air Conditioning, Gas & Plumbing Solutions Across Sussex Established in PDP Services has built a strong…” Source: RevenueBase Database · checked Sep 16, 2026
23	Erda Energy	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	9 contacts →
	Partial evidence “Smart, sustainable heating and cooling, powered by the earth.” Source: RevenueBase Database · checked Sep 16, 2026
24	JKN Renewables LTD	Partial evidence	Doncaster, United KingdomHQ checked Sep 16, 2026	1-10	9 contacts →
	Partial evidence “JKN Renewables are specialists in the installation of low energy heating, cooling and hot water systems.” Source: RevenueBase Database · checked Sep 16, 2026
25	Woodhouse Environmental Services	Indirect evidence	Southampton, United KingdomHQ checked Sep 16, 2026	1-10	8 contacts →
	Indirect evidence “We specialise in providing you with the highest-quality air conditioning, renewable energy, heating, plumbing and ventilation services for commercial, business, and residential…” 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: geothermal cooling contractors. 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 geothermal cooling contractors.
Partial evidence: Its own public description names part of geothermal cooling contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geothermal cooling contractors. 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 161 geothermal cooling contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 393 reachable decision-makers.

Free signup · no credit card

View the full list →

Geothermal cooling contractors based in the United Kingdom at a glance

As of Sep 16, 2026

37.0%Verified-email coverage

6.6Average contacts per company

1-10Median size (employees)

6.2%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 161 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 geothermal cooling contractors, 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 “geothermal cooling contractors”. 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 geothermal cooling contractors), 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 geothermal cooling contractors, 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, 393 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.

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 geothermal cooling contractors, 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 geothermal cooling contractors are there based in the United Kingdom?

RevenueBase identified 161 geothermal cooling contractors 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?

Aqua Cooling LTD, headquartered in Eastleigh, tops this list with the largest team on record.

Which city has the most geothermal cooling contractors?

London leads with 10 headquartered companies, followed by Bristol (4) and Exeter (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 393 verified decision-maker contacts tracked across these 161 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.

Ready to reach these companies? Verified emails and direct dials for all 161 geothermal cooling contractors based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Geothermal cooling contractors by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Geothermal cooling contractors lists · New lists

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.