Company lists · Data refreshed September 2026

Top 25 Heat recovery system installation companies based in the United Kingdom

RevenueBase identified 595 company matches for heat recovery system installation companies associated with the United Kingdom as of September 2026 and tracks 4,883 professional contacts across them, including 1,446 with verified work emails. London is the largest hub.

This list covers company matches for heat recovery system installation companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
595Companies
4,883Contacts tracked
1,446Verified emails
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The 25 largest heat recovery system installation companies based in the United Kingdom

Ranked by team size
Top 25 of 595 company matches for heat recovery system installation companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWarwick, United KingdomHQ recorded Sep 20, 20261,001-5,000850 contacts →

Exact match

“We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchBristol, United KingdomHQ recorded Sep 20, 2026201-500312 contacts →

Exact match

“Space Engineering Services is the UK’s leading provider of refrigeration, heating, ventilation and air conditioning services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchOxford, United KingdomHQ recorded Sep 20, 2026501-1,000232 contacts →

Exact match

“Serck provides specialist design, manufacture, installation, service, and global export of heat transfer technology across a range of sectors and geographies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchBelper, United KingdomHQ recorded Sep 20, 2026501-1,000179 contacts →

Exact match

“What does it take to deliver confidence at every stage of the heating journey?”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchSittingbourne, United KingdomHQ recorded Sep 20, 2026201-500136 contacts →

Exact match

“As an established heating company based in Kent, Swale Heating are proud to offer expert guidance in choosing the best heating and boiler systems & products available today.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchSwindon, United KingdomHQ recorded Sep 20, 202651-200115 contacts →

Exact match

“We are a leading supplier of sustainable heating systems, including HVO boilers, air source heat pumps, solar thermal, hot water storage cylinders, aluminium radiators and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchHull, United KingdomHQ recorded Sep 20, 202651-200114 contacts →

Exact match

“Neil Fisher started Airco in 1991.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchCheltenham, United KingdomHQ recorded Sep 20, 20261,001-5,00092 contacts →

Exact match

“Why are we here?”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchHoniton, United KingdomHQ recorded Sep 20, 202651-20070 contacts →

Exact match

“As the UK's largest supplier of warm water underfloor heating and integrated renewables, Nu‑Heat delivers fully designed, energy efficient systems to installers, housebuilders…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchBeckenham, United KingdomHQ recorded Sep 20, 202651-20067 contacts →

Exact match

“We’re a leading nationwide property services company established in 2013.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchHull, United KingdomHQ recorded Sep 20, 202651-20045 contacts →

Exact match

“Hamworthy Heating is a British manufacturer and supplier of commercial heating and hot water products.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchHertfordshire, United KingdomHQ recorded Sep 20, 202611-5045 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchBanbury, United KingdomHQ recorded Sep 20, 202611-5040 contacts →

Exact match

“Lochinvar designs, manufactures and distributes a comprehensive range of high efficiency gas fired water heaters and boilers for commercial and industrial applications.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchWarrington, United KingdomHQ recorded Sep 20, 202611-5037 contacts →

Exact match

“The UK's trusted boiler, aircon and renewable installers.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchIpswich, United KingdomHQ recorded Sep 20, 202611-5032 contacts →

Exact match

“Refrigeration, heat recovery, ventilation, heat pumps and air-conditioning: At Pitkin & Ruddock our success for delivering complete temperature controlled solutions, service and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5031 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchWorcester, United KingdomHQ recorded Sep 20, 202611-5030 contacts →

Exact match

“We are a specialist heating, ventilation, air conditioning (HVAC), heat pump, electrical and BEMS controls engineering solutions business and post ESOS service provider.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchNorthampton, United KingdomHQ recorded Sep 20, 202651-20026 contacts →

Exact match

“As a market leader in providing energy efficient heating and ventilation solutions, Johnson & Starley has an impressive portfolio of products.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchBanbury, United KingdomHQ recorded Sep 20, 202651-20026 contacts →

Exact match

“M&N Heating & Plumbing is an independent company based in Bloxham on the edge of Banbury, serving Oxfordshire, Northamptonshire, Buckinghamshire and Warwickshire.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchSkipton, United KingdomHQ recorded Sep 20, 202651-20026 contacts →

Exact match

“H Clarke & Sons Ltd was first established in 1920 and has grown to become one of the most renowned independent heating and plumbing companies in the region.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchHawick, United KingdomHQ recorded Sep 20, 202611-5025 contacts →

Exact match

“Turnbull & Scott are mechanical and electrical engineers specialising in the generation, transfer and recovery of heat.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchHorsham, United KingdomHQ recorded Sep 20, 202651-20024 contacts →

Exact match

“Because it is an efficient process, using far more of the available energy in a fuel than either traditional power or heat generation methods, CHP is inherently better for the…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchAmmanford, United KingdomHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“Thermal Earth is a leading UK distributor of renewable heating technologies incorporating wood biomass boilers, heat pumps and solar thermal systems based in South Wales.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchDoncaster, United KingdomHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“MCL Energy has been providing innovative site energy solutions for almost three decades to many different sectors but with one common goal – to provide competent, cost-effective…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchLincoln, United KingdomHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“We are a Midlands based business, that recommends and installs the right equipment to improves your business's profitability and carbon usage.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 595 heat recovery system installation companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,446 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heat recovery system installation companies based in the United Kingdom at a glance

As of Sep 20, 2026
29.6%Verified-email coverage
8.2Average contacts per company
1-10Median size (employees)
6.9%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
353
11-50
193
51-200
28
201-500
4
501-1,000
3
1,001-5,000
3

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 595 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “heat recovery system installation companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,446 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “heat recovery system installation companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many heat recovery system installation companies are there based in the United Kingdom?

RevenueBase identified 595 company matches for heat recovery system installation companies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

BAXI tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most heat recovery system installation companies?

London leads with 41 company records, followed by Bristol (10) and Glasgow (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,446 professional contacts with verified work emails tracked across these 595 companies; direct dials are available where recorded.

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 595 heat recovery system installation companies based in the United Kingdom. Start with a free account, no credit card.

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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 SmartSearch, 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.