Company lists · Data refreshed November 2026

Top 25 Hydronic heating system suppliers based in the United Kingdom

RevenueBase identified 507 company matches for hydronic heating system suppliers associated with the United Kingdom as of November 2026 and tracks 5,780 professional contacts across them, including 1,661 with verified work emails. London is the largest hub.

This list covers company matches for hydronic heating system suppliers 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 November 6, 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 Nov 6, 2026 How this list was built
507Companies
5,780Contacts tracked
1,661Verified emails
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The 25 largest hydronic heating system suppliers based in the United Kingdom

Ranked by team size
Top 25 of 507 company matches for hydronic heating system suppliers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 20261,001-5,000865 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBelper, United KingdomHQ recorded Nov 6, 2026501-1,000195 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSwindon, United KingdomHQ recorded Nov 6, 202651-200123 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchIlminster, United KingdomHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchHoniton, United KingdomHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchGlasgow, United KingdomHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Heating - Pipework - Process - Maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDagenham, United KingdomHQ recorded Nov 6, 2026201-50060 contacts →

Exact match

“APP Wholesale Ltd is a leading national distributor of plumbing, heating, hot water, and renewable solutions, proudly serving independent merchants, trade, DIY enthusiasts and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCity Of Bristol, United KingdomHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“PHC are an established, specialist supplier of parts for domestic and commercial heating, plumbing, air conditioning and refrigeration systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBrookmans Park, United KingdomHQ recorded Nov 6, 202611-5059 contacts →

Exact match

“Leading supplier and installer of underfloor heating for residential developments in the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchUxbridge, United KingdomHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Welcome to Mitsubishi Heavy Industries Air Conditioning Europe Ltd (MHIAE), a company created by MHI for all HVAC solutions across Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBasildon, United KingdomHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“We're the UK's most trusted and tried Underfloor Heating Brand.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWarwick, United KingdomHQ recorded Nov 6, 2026n/a50 contacts →

Exact match

“Wolseley Pipe is the first-choice specialist merchant for commercial and industrial pipe and heating systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHull, United KingdomHQ recorded Nov 6, 202651-20049 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSouthampton, United KingdomHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“GDC is the holding company for some of the best known brands in the heating industry, including Dimplex, Creda NOBO, Faber, Robinson Willey, Valor, Wonderfire, Glen, Unidare…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMilton Keynes, United KingdomHQ recorded Nov 6, 202611-5042 contacts →

Exact match

“Plumbing & Gas Solutions Ltd are a Constructionline and CHAS accredited Commercial Plumbing & Heating contractor based in Milton Keynes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBanbury, United KingdomHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHertfordshire, United KingdomHQ recorded Nov 6, 202611-5040 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 · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAntrim, United KingdomHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Established in Belfast in 1960, Beggs and Partners now have 11 branches in total; Belfast HQ, Ballymena, Derry City, Maghera, Newtownards, Portadown, Lisburn, Basildon, Cambridge…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchChelmsford, United KingdomHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Founded in 1991, Smith’s EP UK has grown organically to become the UK’s leading supplier of hydronic fan convector products, providing versatile, energy efficient heating…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 202651-20034 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBasildon, United KingdomHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“FastWarm® are the UK's No 1 online supplier of Underfloor Heating products: with over 20 years’ experience in the industry, we've accumulated a comprehensive understanding of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDunfermline, United KingdomHQ recorded Nov 6, 202651-20034 contacts →

Exact match

“BUILT TO LAST ATAG truly is a unique company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHatfield, United KingdomHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Ambiente Systems Ltd has been trading since 2006 and specialises in the design, manufacture and supply of hydronic underfloor heating systems to the trade.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBury St Edmunds, United KingdomHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Gaia Underfloor Heating.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchGateshead, United KingdomHQ recorded Nov 6, 2026201-50031 contacts →

Exact match

“Merriott is the better choice for bespoke heating solutions for commercial applications across the UK and Ireland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 507 hydronic heating system suppliers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,661 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydronic heating system suppliers based in the United Kingdom at a glance

As of Nov 6, 2026
28.7%Verified-email coverage
11.4Average contacts per company
1-10Median size (employees)
5.5%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
263
11-50
148
51-200
38
201-500
8
501-1,000
4
1,001-5,000
10
5,001-10,000
2

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 507 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 “hydronic heating system suppliers” 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 1,661 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 November 6, 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 “hydronic heating system suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydronic heating system suppliers are there based in the United Kingdom?

RevenueBase identified 507 company matches for hydronic heating system suppliers associated with the United Kingdom as of November 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 hydronic heating system suppliers?

London leads with 28 company records, followed by Manchester (8) and Derby (6).

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 1,661 professional contacts with verified work emails tracked across these 507 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 November 6, 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 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.