Company lists · Data refreshed September 2026

Top 25 Heat control systems companies based in the United Kingdom

Name: Heat control systems 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 19, 2026 163 companies tracked

RevenueBase identified 163 heat control systems companies headquartered in the United Kingdom as of September 2026 and tracks 2,592 professional contacts across them, including 1,003 with verified work emails. London is the largest hub.

This list covers heat control systems 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 19, 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 19, 2026 86% judged on-target in blind review

163Companies

2,592Contacts tracked

1,003Verified emails

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The 25 largest heat control systems companies based in the United Kingdom

Ranked by team size

Top 25 of 163 heat control systems companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to heat control systems 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	Daikin UK	Indirect evidence	Weybridge, United KingdomHQ checked Sep 19, 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 19, 2026
2	ICS Cool Energy	Partial evidence	Totton, United KingdomHQ checked Sep 19, 2026	201-500	218 contacts →
	Partial evidence “ICS Cool Energy is a leading process temperature control specialist.” Source: RevenueBase Database · checked Sep 19, 2026
3	Dimplex UK	Indirect evidence	Southampton, United KingdomHQ checked Sep 19, 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 19, 2026
4	Trend Control Systems	Partial evidence	Horsham, United KingdomHQ checked Sep 19, 2026	501-1,000	113 contacts →
	Partial evidence “Trend is one of the world's leading Building Energy Management Systems manufacturers, with a worldwide distribution and support network covering over 50 countries.” Source: RevenueBase Database · checked Sep 19, 2026
5	CP Electronics	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	111 contacts →
	Partial evidence “With over 50 years experience in creating solutions for lighting, heating and ventilation, CP Electronics is a world leader in energy saving controls.” Source: RevenueBase Database · checked Sep 19, 2026
6	HIVE	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	100 contacts →
	Indirect evidence “Welcome to greener living, lower bills, and eco-tech that feels like home.” Source: RevenueBase Database · checked Sep 19, 2026
7	Zehnder Group UK	Indirect evidence	Camberley, United KingdomHQ checked Sep 19, 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 19, 2026
8	Powrmatic Limited	Partial evidence	Ilminster, United KingdomHQ checked Sep 19, 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 19, 2026
9	UK Electric Limited	Partial evidence	Newbury, United KingdomHQ checked Sep 19, 2026	51-200	55 contacts →
	Partial evidence “UK Electric Ltd are a powerful mix of technical sales and distribution companies, offering national coverage of all your energy controls solutions with a robust network of…” Source: RevenueBase Database · checked Sep 19, 2026
10	Sontay LTD	Partial evidence	Edenbridge, United KingdomHQ checked Sep 19, 2026	11-50	53 contacts →
	Partial evidence “Sontay is a market leading manufacturer and supplier of control peripheral products for the heating and ventilation industry.” Source: RevenueBase Database · checked Sep 19, 2026
11	Passiv UK	Strong evidence	Newbury, United KingdomHQ checked Sep 19, 2026	51-200	47 contacts →
	Strong evidence “The Passiv Smart Thermostat is the first smart thermostat designed specifically for controlling heat pumps and is the result of over 10 years of R&D in low-carbon heating.” Source: RevenueBase Database · checked Sep 19, 2026
12	AES Control Systems	Strong evidence	Northampton, United KingdomHQ checked Sep 19, 2026	51-200	45 contacts →
	Strong evidence “AES is a leading provider of intelligent building control system solutions.” Source: RevenueBase Database · checked Sep 19, 2026
13	AET Flexible Space	Indirect evidence	East Grinstead, United KingdomHQ checked Sep 19, 2026	11-50	43 contacts →
	Indirect evidence “AET Flexible Space has been redefining how buildings breathe since 1993.” Source: RevenueBase Database · checked Sep 19, 2026
14	Salus Controls UK	Strong evidence	Rotherham, United KingdomHQ checked Sep 19, 2026	11-50	42 contacts →
	Strong evidence “Provider of heating control solutions and Smart Home systems.” Source: RevenueBase Database · checked Sep 19, 2026
15	ONE Sightsolutions LTD	Indirect evidence	Hartley Wintney, United KingdomHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “https://onesight.solutions/ Here at One Sightsolutions we are the leading UK supplier of reputable building automation and energy management products & services.” Source: RevenueBase Database · checked Sep 19, 2026
16	Robell Control Systems Limited	Strong evidence	Birmingham, United KingdomHQ checked Sep 19, 2026	11-50	27 contacts →
	Strong evidence “Robell Control Systems Limited established in 1989, we are privately owned independent company and are leading independent specialists for design, installation, commissioning and…” Source: RevenueBase Database · checked Sep 19, 2026
17	Laplace Solutions LTD	Indirect evidence	Glasgow, United KingdomHQ checked Sep 19, 2026	51-200	26 contacts →
	Indirect evidence “About Us Laplace Solutions has a history stretching back to 1976, when we sold instrumentation products to a variety of industries.” Source: RevenueBase Database · checked Sep 19, 2026
18	Comfort Controls Limited	Partial evidence	Hemel Hempstead, United KingdomHQ checked Sep 19, 2026	51-200	21 contacts →
	Partial evidence “Take control of YOUR environment.” Source: RevenueBase Database · checked Sep 19, 2026
19	Herz UK LTD	Indirect evidence	Peterborough, United KingdomHQ checked Sep 19, 2026	11-50	21 contacts →
	Indirect evidence “Herz UK Ltd is based in Peterborough and has operated in the UK for over 50 years.” Source: RevenueBase Database · checked Sep 19, 2026
20	Essco Group	Partial evidence	Southampton, United KingdomHQ checked Sep 19, 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 19, 2026
21	QQ Solutions LTD	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	20 contacts →
	Strong evidence “QQ design, supply and install of residental and commercial automation technology and energy-efficient control systems.” Source: RevenueBase Database · checked Sep 19, 2026
22	ECE UK LTD	Indirect evidence	Rochester, United KingdomHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “ECE UK Ltd is a privately owned company that was established in 1979 by the existing directors and shareholders.” Source: RevenueBase Database · checked Sep 19, 2026
23	Thermosphere	Partial evidence	Marden, United KingdomHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “The race to reduce our carbon emissions is on and that means we need to change how we heat homes.” Source: RevenueBase Database · checked Sep 19, 2026
24	Schwank UK	Indirect evidence	Doncaster, United KingdomHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “The Schwank Group.” Source: RevenueBase Database · checked Sep 19, 2026
25	Loxone UK	Indirect evidence	Theale, United KingdomHQ checked Sep 19, 2026	501-1,000	15 contacts →
	Indirect evidence “LOXONE was founded in 2009 - and opened its doors in the UK in 2012 - since revolutionising the smart home industry with its green Miniserver becoming a market leader in this…” Source: RevenueBase Database · checked Sep 19, 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 control systems 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 control systems companies.
Partial evidence: Its own public description names part of heat control systems companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name heat control systems 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 163 heat control systems companies based in the United Kingdom

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Heat control systems companies based in the United Kingdom at a glance

As of Sep 19, 2026

38.7%Verified-email coverage

15.9Average contacts per company

11-50Median size (employees)

8.0%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 163 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 control systems 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 control systems 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 control systems 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 control systems 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, 1,003 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 19, 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 heat control systems 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 control systems companies are there based in the United Kingdom?

RevenueBase identified 163 heat control systems 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?

Daikin UK, headquartered in Weybridge, tops this list with the largest team on record.

Which city has the most heat control systems companies?

London leads with 13 headquartered companies, followed by Birmingham (4) and Manchester (4).

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 1,003 verified decision-maker contacts tracked across these 163 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 19, 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.