Company lists · Data refreshed November 2026

Top 25 Hydronic heating system manufacturers based in the United Kingdom

RevenueBase identified 327 company matches for hydronic heating system manufacturers associated with the United Kingdom as of November 2026 and tracks 5,687 professional contacts across them, including 1,767 with verified work emails. London is the largest hub.

This list covers company matches for hydronic heating system manufacturers 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
327Companies
5,687Contacts tracked
1,767Verified emails
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The 25 largest hydronic heating system manufacturers based in the United Kingdom

Ranked by team size
Top 25 of 327 company matches for hydronic heating system manufacturers 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 matchHull, United KingdomHQ recorded Nov 6, 2026501-1,000310 contacts →

Exact match

“The UK’s leading heating manufacturer, providing reliable, sustainable warmth through boilers, heat pumps and controls Rated Excellent on Trustpilot Award-winning Keeping Homes…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact 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
4Exact matchWest Drayton, United KingdomHQ recorded Nov 6, 2026501-1,000175 contacts →

Exact match

“Founded in 1949, RWC and its family of brands produce safe, sustainable and efficient solutions for a range of sectors, from its EMEA headquarters and manufacturing site in West…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact 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
6Exact 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
7Exact matchBradford, United KingdomHQ recorded Nov 6, 202651-20071 contacts →

Exact match

“Ormandy Rycroft Engineering aims to be a market leading provider of world class heat transfer and packaged solutions through our integrated portfolio of products, and our…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact 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
9Exact matchKidderminster, United KingdomHQ recorded Nov 6, 2026201-50064 contacts →

Exact match

“We’re Dutch, we manufacture ultra-efficient domestic boilers and we want to make the world a better place for all of us.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact 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
11Exact 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
12Exact 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
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 matchStevenage, United KingdomHQ recorded Nov 6, 202611-5046 contacts →

Exact match

“Elecro Engineering are considered one of the leading international manufacturers and specialists in the field of swimming pool water heating.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBallymakeera, United KingdomHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“Firebird is a leading manufacturer of heating products based in County Cork, Ireland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact 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
18Exact matchBristol, United KingdomHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“Fulton Ltd specialises in the design and manufacture of steam, hot water, thermal fluid boilers, packaged plant rooms and skid-mounted systems for industrial, commercial and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLeicester, United KingdomHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“SPC is a British manufacturer specialising in supplying heating and cooling solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact 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
21Exact 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
22Exact matchLisburn, United KingdomHQ recorded Nov 6, 202651-20035 contacts →

Exact match

“Warmflow specialise in design, manufacturing, fabrication, sub assembly and kitting solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchAndover, United KingdomHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“Since 1996, our high-quality products, commitment to UK manufacturing and outstanding customer service have put us at the forefront of the heating and ventilation industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact 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
25Exact 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

Showing 25 of 327 hydronic heating system manufacturers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,767 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Nov 6, 2026
31.1%Verified-email coverage
17.4Average contacts per company
11-50Median size (employees)
5.2%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
140
11-50
101
51-200
41
201-500
12
501-1,000
5
1,001-5,000
9
5,001-10,000
1

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 327 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 manufacturers” 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 1,767 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 manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 327 company matches for hydronic heating system manufacturers 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 manufacturers?

London leads with 17 company records, followed by Sheffield (5) and Wednesbury (5).

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 1,767 professional contacts with verified work emails tracked across these 327 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.