Company lists · Data refreshed September 2026
Top 25 Underfloor heating manufacturers worldwide
RevenueBase identified 1,936 underfloor heating manufacturers worldwide as of September 2026 and tracks 19,490 professional contacts across them, including 4,700 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers underfloor heating manufacturers worldwide, 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 29, 2026. Country and city lists for underfloor heating manufacturers follow the table.
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.
The 25 largest underfloor heating manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 326 contacts → | ||||
Indirect evidence “We are Purmo Group, leader in sustainable indoor climate comfort solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 294 contacts → | ||||
Indirect evidence “Following Rinnai's international origins dating back more than 100 years, Rinnai Australia was established 50 years ago and since then has been providing Australians with the best…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 279 contacts → | ||||
Strong evidence “Weil-McLain® is a leading North American designer and manufacturer of hydronic comfort heating systems for residential, commercial and institutional buildings since 1881.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 224 contacts → | ||||
Partial evidence “Leading company in Europe in the production of radiators for domestic heating, air exchange systems and home automation applied to heating.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 221 contacts → | ||||
Partial evidence “Stelpro is a family business founded in 1981, recognized in the electric heating, heated floors and electronic controls industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 206 contacts → | ||||
Partial evidence “Committed to Innovation, Excellence and Quality, sensitive to customer needs and backed by years of experience in the field of heating, Thermopads has the unique distinction of…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 201 contacts → | ||||
Strong evidence “Belgian-built since 1992, Henco designs and manufactures complete system solutions for HVAC, sanitary and underfloor heating projects.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 201 contacts → | ||||
Partial evidence “For over 75 years, Dimplex has been the trusted name for electric heating.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 185 contacts → | ||||
Strong evidence “For over half a century, OJ Electronics has specialized in designing and developing electronic HVAC controls and drives and thermostats for electric underfloor heating systems.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 172 contacts → | ||||
Indirect evidence “Orkli es líder mundial en la fabricación y venta de componentes de seguridad termoeléctrica.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 167 contacts → | ||||
Partial evidence “Marley Engineered Products® draws upon a long history of providing reliable comfort heating and ventilation solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 148 contacts → | ||||
Partial evidence “Glen Dimplex Deutschland (GDD) is part of the international Glen Dimplex Group based in Ireland - a leading international supplier of electric heating solutions and domestic…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 143 contacts → | ||||
Indirect evidence “Die Marke Buderus ist Teil der Bosch Thermotechnik GmbH und steht seit 1731 für Spitzenprodukte im Bereich Heizsysteme Ob regenerativ oder klassisch betrieben – unsere Heizsysteme…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 142 contacts → | ||||
Indirect evidence “1996 senesinde bir Beyçelik Holding iştiraki olarak kurulan Warmhaus, iklimlendirme alanındaki 20 yılı aşkın tecrübesi ile panel radyatör, kombi, şofben ve duvar tipi yoğuşmalı…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 126 contacts → | ||||
Indirect evidence “Focused on leading the transition to a sustainable future, Glen Dimplex Americas is enhancing the moments that matter in life with a commitment to delivering the best design and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 119 contacts → | ||||
Partial evidence “Founded in 1938, Tutco has quickly grown into a global leader in the heating component industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 115 contacts → | ||||
Indirect evidence “Vi erbjuder vvs-marknadens bredaste sortiment.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 114 contacts → | ||||
Indirect evidence “Heat Merchants Group trading as Heat Merchants, Bathroom Merchants, and Tubs & Tiles, is part of Wolseley group since 2022.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 106 contacts → | ||||
Strong evidence “Founded in 1953 by the Bossini family in Lumezzane, RBM designs and manufactures innovative plumbing and heating components and systems, characterised by efficacy and efficiency…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 100 contacts → | ||||
Indirect evidence “Mit innovativer Technik zur Übergabe und Verteilung von Wärme auf der entscheidenden „letzten Meile“ vereinfacht und beschleunigt PEWO die Integration regenerativer Energiequellen.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 94 contacts → | ||||
Indirect evidence “Spoločnosť Protherm Production zo Skalice patrí k top výrobcom vykurovacích zariadení.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 89 contacts → | ||||
Indirect evidence “RDZ di Sacile PN è azienda leader in Italia nella climatizzazione radiante.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 83 contacts → | ||||
Strong evidence “NTI is a manufacturer of residential and commercial heating equipment founded in Saint John, New Brunswick, Canada.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 83 contacts → | ||||
Strong evidence “With over 35 years of experience, and as Europe's leading manufacturer of electric heating, Rointe is ideally placed to help our customers choose the right heating system, at the…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 76 contacts → | ||||
Indirect evidence “As one of the first companies in Italy to believe in the potential of radiant systems, Eurotherm has always focused on the quality of its products and services, on the innovation…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: underfloor heating manufacturers. 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 underfloor heating manufacturers.
- Partial evidence
- Its own public description names part of underfloor heating manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name underfloor heating manufacturers. 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 1,936 underfloor heating manufacturers worldwide
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Underfloor heating manufacturers worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 underfloor heating manufacturers, 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.
- Coverage
- Every country. Country and city lists for underfloor heating manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “underfloor heating manufacturers”. 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 underfloor heating manufacturers), 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 underfloor heating manufacturers, and records with no verified work email.
- 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, 4,700 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 29, 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.
Underfloor heating manufacturers by location
13 lists · largest firstEvery Underfloor heating manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Underfloor heating manufacturers based in the United Kingdom307
- Underfloor heating manufacturers based in Germany198
- Underfloor heating manufacturers based in the Netherlands152
- Underfloor heating manufacturers based in the United States131
- Underfloor heating manufacturers based in Italy104
- Underfloor heating manufacturers based in Poland66
- Underfloor heating manufacturers based in Türkiye65
- Underfloor heating manufacturers based in Canada55
- Underfloor heating manufacturers based in France54
- Underfloor heating manufacturers based in Belgium52
- Underfloor heating manufacturers based in Australia33
- Underfloor heating manufacturers based in Switzerland31
- Underfloor heating manufacturers based in Austria28
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 underfloor heating manufacturers, 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 underfloor heating manufacturers are there worldwide?
RevenueBase identified 1,936 underfloor heating manufacturers worldwide 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?
Purmo Group, headquartered in Helsinki, tops this list with the largest team on record.
Which country has the most underfloor heating manufacturers?
The United Kingdom leads with 307 companies, followed by Germany (198) and the Netherlands (152). Every underfloor heating manufacturers list by country and city is linked on this page.
Which city has the most underfloor heating manufacturers?
London leads with 20 headquartered companies, followed by Istanbul (13) and Manchester (9).
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 4,700 verified decision-maker contacts tracked across these 1,936 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 29, 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.