Company lists · Data refreshed November 2026
Top 25 Heating system retrofitting companies worldwide
RevenueBase identified 8,075 company matches for heating system retrofitting companies worldwide as of November 2026 and tracks 48,310 professional contacts across them, including 11,084 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers company matches for heating system retrofitting companies worldwide, 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. Country and city lists for heating system retrofitting companies follow the table.
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.
The 25 largest heating system retrofitting companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,054 contacts → | ||||
Exact match “A major player in the energy transition and leader in home services, PROXISERVE provides its customers with innovative solutions enabling them to reduce their energy consumption…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 865 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 | |||||
| 3 | 813 contacts → | ||||
Exact match “Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 509 contacts → | ||||
Exact match “STIEBEL ELTRON bietet hocheffiziente Produkte und Dienstleistungen für die Heizung, Kühlung, Lüftung und Warmwasserbereitung von Gebäuden.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 442 contacts → | ||||
Exact match “Feel Well.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 381 contacts → | ||||
Exact match “At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 323 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 311 contacts → | ||||
Exact match “Grupo Remica se crea en 1984 como empresa de instalación y mantenimiento de sistemas de calefacción, climatización y ACS.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 210 contacts → | ||||
Exact match “Intergas: an introduction.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 199 contacts → | ||||
Exact match “Bonarius Bedrijven De naam Bonarius was lange tijd synoniem voor de aanleg en het onderhoud van cv-installaties.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 195 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 | |||||
| 12 | 173 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 159 contacts → | ||||
Exact match “Go Lime is reimagining home comfort and energy solutions for Canadians, starting in Ontario and expanding across the country.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 153 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 147 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 142 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 136 contacts → | ||||
Exact match “With over 40 years of successful delivery experience in the domestic and commercial markets you can trust Sureserve Compliance Central with all your heating needs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 130 contacts → | ||||
Exact match “We Make Buildings Brilliant.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 124 contacts → | ||||
Exact match “E2S, prend en charge l'entretien, le dépannage, les travaux de rénovation et d'optimisation, pour vos équipements, notamment de chauffage collectif, de petites et moyennes…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 123 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 | |||||
| 21 | 119 contacts → | ||||
Exact match “Hometree is a home energy services company on a mission to accelerate the transition to net zero.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 117 contacts → | ||||
Exact match “We are a leading provider of retrofit residential decarbonisation across the UK.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 117 contacts → | ||||
Exact match “Jetson is on a mission to accelerate the transition of 100M homes across North America away from burning fossil fuels to sustainable energy use.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 117 contacts → | ||||
Exact match “BRÖTJE efficient heating system technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 117 contacts → | ||||
Exact match “In Lichtenvoorde ontwikkelt ATAG al decennialang verwarmingsoplossingen voor de Nederlandse markt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “heating system retrofitting companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 8,075 heating system retrofitting companies worldwide
See the full list, filter by size, metro and specialty, and access 11,084 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Heating system retrofitting companies worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for heating system retrofitting companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “heating system retrofitting 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. 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 11,084 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.
Heating system retrofitting companies by location
21 lists · largest firstEvery Heating system retrofitting companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Heating system retrofitting companies based in the United Kingdom1,247
- Heating system retrofitting companies based in France978
- Heating system retrofitting companies based in the United States976
- Heating system retrofitting companies based in Germany937
- Heating system retrofitting companies based in the Netherlands431
- Heating system retrofitting companies based in Italy381
- Heating system retrofitting companies based in Canada285
- Heating system retrofitting companies based in Belgium242
- Heating system retrofitting companies based in Spain235
- Heating system retrofitting companies based in Switzerland191
- Heating system retrofitting companies based in Poland151
- Heating system retrofitting companies based in Türkiye107
- Heating system retrofitting companies based in Australia100
- Heating system retrofitting companies based in Austria84
- Heating system retrofitting companies based in Ireland77
- Heating system retrofitting companies based in Sweden66
- Heating system retrofitting companies based in Czechia50
- Heating system retrofitting companies based in Denmark43
- Heating system retrofitting companies based in Finland41
- Heating system retrofitting companies based in Norway27
Cities
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 “heating system retrofitting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many heating system retrofitting companies are there worldwide?
RevenueBase identified 8,075 company matches for heating system retrofitting companies worldwide 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?
Proxiserve tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most heating system retrofitting companies?
The United Kingdom leads with 1,247 companies, followed by France (978) and the United States (976). Every heating system retrofitting companies list by country and city is linked on this page.
Which city has the most heating system retrofitting companies?
London leads with 77 company records, followed by Berlin (30) and Glasgow (25).
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 11,084 professional contacts with verified work emails tracked across these 8,075 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.
Ready to reach these companies? Verified emails and direct dials for all 8,075 heating system retrofitting companies worldwide. 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.
More company lists
Company intelligence · public preview
Top 25 heating system retrofitting companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 8,075 matching company records for heating system retrofitting companies worldwide, with 48,310 tracked contacts and 11,084 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 heating system retrofitting companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Proxiserveproxiserve.frHQ: Levallois-perret, FranceReported employees: 1,001-5,000 | Levallois-perret, France | 1,001-5,000 | Exact match | 1,054 contacts → |
“A major player in the energy transition and leader in home services, PROXISERVE provides its customers with innovative solutions enabling them to reduce their energy consumption…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  BAXIbaxi.co.ukHQ: Warwick, United KingdomReported employees: 1,001-5,000 | Warwick, United Kingdom | 1,001-5,000 | Exact match | 865 contacts → |
“We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Feenstrafeenstra.comHQ: Lelystad, NetherlandsReported employees: 1,001-5,000 | Lelystad, Netherlands | 1,001-5,000 | Exact match | 813 contacts → |
“Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Stiebel Eltron Groupstiebel-eltron.comHQ: Holzminden, GermanyReported employees: 5,001-10,000 | Holzminden, Germany | 5,001-10,000 | Exact match | 509 contacts → |
“STIEBEL ELTRON bietet hocheffiziente Produkte und Dienstleistungen für die Heizung, Kühlung, Lüftung und Warmwasserbereitung von Gebäuden.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Ferroli Groupferroli.comHQ: San Bonifacio, ItalyReported employees: 1,001-5,000 | San Bonifacio, Italy | 1,001-5,000 | Exact match | 442 contacts → |
“Feel Well.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Homeworks Energy, INChomeworksenergy.comHQ: Medford, MA, United StatesReported employees: 201-500 | Medford, MA, United States | 201-500 | Exact match | 381 contacts → |
“At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Rinnai Australiarinnai.com.auHQ: Braeside, AustraliaReported employees: 201-500 | Braeside, Australia | 201-500 | Exact match | 323 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Remicaremica.esHQ: Madrid, SpainReported employees: 501-1,000 | Madrid, Spain | 501-1,000 | Exact match | 311 contacts → |
“Grupo Remica se crea en 1984 como empresa de instalación y mantenimiento de sistemas de calefacción, climatización y ACS.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Intergas Verwarming B.Vintergas-verwarming.nlHQ: Coevorden, NetherlandsReported employees: 201-500 | Coevorden, Netherlands | 201-500 | Exact match | 210 contacts → |
“Intergas: an introduction.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Bonarius Bedrijvenbonarius.comHQ: Zwanenburg, NetherlandsReported employees: 201-500 | Zwanenburg, Netherlands | 201-500 | Exact match | 199 contacts → |
“Bonarius Bedrijven De naam Bonarius was lange tijd synoniem voor de aanleg en het onderhoud van cv-installaties.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Vaillant UKvaillant.co.ukHQ: Belper, United KingdomReported employees: 501-1,000 | Belper, United Kingdom | 501-1,000 | Exact match | 195 contacts → |
“What does it take to deliver confidence at every stage of the heating journey?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Marshalls INCmarshallsinc.com HQ: Lynnwood, WA, United StatesReported employees: Not recorded | Lynnwood, WA, United States | Not recorded | Exact match | 173 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 |  GO Lime INCgolime.comHQ: North York, ON, CanadaReported employees: 51-200 | North York, ON, Canada | 51-200 | Exact match | 159 contacts → |
“Go Lime is reimagining home comfort and energy solutions for Canadians, starting in Ontario and expanding across the country.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Swale Heating Part Of Sureserveswaleheating.comHQ: Sittingbourne, United KingdomReported employees: 201-500 | Sittingbourne, United Kingdom | 201-500 | Exact match | 153 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Buderus Deutschlandbuderus.deHQ: Wetzlar, GermanyReported employees: 1,001-5,000 | Wetzlar, Germany | 1,001-5,000 | Exact match | 147 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Vitaclimvitaclim.comHQ: Montpellier, FranceReported employees: 201-500 | Montpellier, France | 201-500 | Exact match | 142 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 |  Sureserve Compliance Centralsureserve.co.ukHQ: Unit 5-6 Boudicca Road, United KingdomReported employees: 501-1,000 | Unit 5-6 Boudicca Road, United Kingdom | 501-1,000 | Exact match | 136 contacts → |
“With over 40 years of successful delivery experience in the domestic and commercial markets you can trust Sureserve Compliance Central with all your heating needs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Cypress Envirosystemscypressenvirosystems.comHQ: San Jose, CA, United StatesReported employees: 11-50 | San Jose, CA, United States | 11-50 | Exact match | 130 contacts → |
“We Make Buildings Brilliant.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  E2se2s.frHQ: Villeurbanne, FranceReported employees: 201-500 | Villeurbanne, France | 201-500 | Exact match | 124 contacts → |
“E2S, prend en charge l'entretien, le dépannage, les travaux de rénovation et d'optimisation, pour vos équipements, notamment de chauffage collectif, de petites et moyennes…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Grant Engineering UK LTDgrantuk.comHQ: Swindon, United KingdomReported employees: 51-200 | Swindon, United Kingdom | 51-200 | Exact match | 123 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Hometreehometree.co.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 119 contacts → |
“Hometree is a home energy services company on a mission to accelerate the transition to net zero.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Livgreenlivgreen.co.ukHQ: Bristol, United KingdomReported employees: 201-500 | Bristol, United Kingdom | 201-500 | Exact match | 117 contacts → |
“We are a leading provider of retrofit residential decarbonisation across the UK.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Jetsonjetsonhome.comHQ: North Vancouver, BC, CanadaReported employees: 201-500 | North Vancouver, BC, Canada | 201-500 | Exact match | 117 contacts → |
“Jetson is on a mission to accelerate the transition of 100M homes across North America away from burning fossil fuels to sustainable energy use.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  August Brötje Gmbhbroetje.deHQ: Rastede, GermanyReported employees: 201-500 | Rastede, Germany | 201-500 | Exact match | 117 contacts → |
“BRÖTJE efficient heating system technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Atag Verwarmingatagverwarming.nlHQ: Lichtenvoorde, NetherlandsReported employees: 51-200 | Lichtenvoorde, Netherlands | 51-200 | Exact match | 117 contacts → |
“In Lichtenvoorde ontwikkelt ATAG al decennialang verwarmingsoplossingen voor de Nederlandse markt.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 8,075 company matches
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Heating system retrofitting companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
7,524 records in the displayed employee bands.
551 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 8,075 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Heating system retrofitting companies by location
21 lists · largest firstEvery Heating system retrofitting companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Heating system retrofitting companies based in the United Kingdom1,247
- Heating system retrofitting companies based in France978
- Heating system retrofitting companies based in the United States976
- Heating system retrofitting companies based in Germany937
- Heating system retrofitting companies based in the Netherlands431
- Heating system retrofitting companies based in Italy381
- Heating system retrofitting companies based in Canada285
- Heating system retrofitting companies based in Belgium242
- Heating system retrofitting companies based in Spain235
- Heating system retrofitting companies based in Switzerland191
- Heating system retrofitting companies based in Poland151
- Heating system retrofitting companies based in Türkiye107
- Heating system retrofitting companies based in Australia100
- Heating system retrofitting companies based in Austria84
- Heating system retrofitting companies based in Ireland77
- Heating system retrofitting companies based in Sweden66
- Heating system retrofitting companies based in Czechia50
- Heating system retrofitting companies based in Denmark43
- Heating system retrofitting companies based in Finland41
- Heating system retrofitting companies based in Norway27
Cities
Questions about this company list
What does Exact match mean for heating system retrofitting companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many heating system retrofitting companies did RevenueBase find worldwide?
The saved snapshot records 8,075 matching company records, 48,310 tracked contacts and 11,084 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 heating system retrofitting companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/heating-system-retrofitting-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 heating system retrofitting companies worldwide
RevenueBase records 8,075 matching company records for heating system retrofitting companies worldwide, with 48,310 tracked contacts and 11,084 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 heating system retrofitting companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Proxiserveproxiserve.fr HQ: Levallois-perret, FranceReported employees: 1,001-5,000 | Levallois-perret, France | 1,001-5,000 | Exact match | 1,054 contacts → |
“A major player in the energy transition and leader in home services, PROXISERVE provides its customers with innovative solutions enabling them to reduce their energy consumption…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | BAXIbaxi.co.uk HQ: Warwick, United KingdomReported employees: 1,001-5,000 | Warwick, United Kingdom | 1,001-5,000 | Exact match | 865 contacts → |
“We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Feenstrafeenstra.com HQ: Lelystad, NetherlandsReported employees: 1,001-5,000 | Lelystad, Netherlands | 1,001-5,000 | Exact match | 813 contacts → |
“Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Stiebel Eltron Groupstiebel-eltron.com HQ: Holzminden, GermanyReported employees: 5,001-10,000 | Holzminden, Germany | 5,001-10,000 | Exact match | 509 contacts → |
“STIEBEL ELTRON bietet hocheffiziente Produkte und Dienstleistungen für die Heizung, Kühlung, Lüftung und Warmwasserbereitung von Gebäuden.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Ferroli Groupferroli.com HQ: San Bonifacio, ItalyReported employees: 1,001-5,000 | San Bonifacio, Italy | 1,001-5,000 | Exact match | 442 contacts → |
“Feel Well.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Homeworks Energy, INChomeworksenergy.com HQ: Medford, MA, United StatesReported employees: 201-500 | Medford, MA, United States | 201-500 | Exact match | 381 contacts → |
“At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Rinnai Australiarinnai.com.au HQ: Braeside, AustraliaReported employees: 201-500 | Braeside, Australia | 201-500 | Exact match | 323 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Remicaremica.es HQ: Madrid, SpainReported employees: 501-1,000 | Madrid, Spain | 501-1,000 | Exact match | 311 contacts → |
“Grupo Remica se crea en 1984 como empresa de instalación y mantenimiento de sistemas de calefacción, climatización y ACS.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Intergas Verwarming B.Vintergas-verwarming.nl HQ: Coevorden, NetherlandsReported employees: 201-500 | Coevorden, Netherlands | 201-500 | Exact match | 210 contacts → |
“Intergas: an introduction.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Bonarius Bedrijvenbonarius.com HQ: Zwanenburg, NetherlandsReported employees: 201-500 | Zwanenburg, Netherlands | 201-500 | Exact match | 199 contacts → |
“Bonarius Bedrijven De naam Bonarius was lange tijd synoniem voor de aanleg en het onderhoud van cv-installaties.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Vaillant UKvaillant.co.uk HQ: Belper, United KingdomReported employees: 501-1,000 | Belper, United Kingdom | 501-1,000 | Exact match | 195 contacts → |
“What does it take to deliver confidence at every stage of the heating journey?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Marshalls INCmarshallsinc.com HQ: Lynnwood, WA, United StatesReported employees: Not recorded | Lynnwood, WA, United States | Not recorded | Exact match | 173 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | GO Lime INCgolime.com HQ: North York, ON, CanadaReported employees: 51-200 | North York, ON, Canada | 51-200 | Exact match | 159 contacts → |
“Go Lime is reimagining home comfort and energy solutions for Canadians, starting in Ontario and expanding across the country.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Swale Heating Part Of Sureserveswaleheating.com HQ: Sittingbourne, United KingdomReported employees: 201-500 | Sittingbourne, United Kingdom | 201-500 | Exact match | 153 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Buderus Deutschlandbuderus.de HQ: Wetzlar, GermanyReported employees: 1,001-5,000 | Wetzlar, Germany | 1,001-5,000 | Exact match | 147 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Vitaclimvitaclim.com HQ: Montpellier, FranceReported employees: 201-500 | Montpellier, France | 201-500 | Exact match | 142 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 | Sureserve Compliance Centralsureserve.co.uk HQ: Unit 5-6 Boudicca Road, United KingdomReported employees: 501-1,000 | Unit 5-6 Boudicca Road, United Kingdom | 501-1,000 | Exact match | 136 contacts → |
“With over 40 years of successful delivery experience in the domestic and commercial markets you can trust Sureserve Compliance Central with all your heating needs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cypress Envirosystemscypressenvirosystems.com HQ: San Jose, CA, United StatesReported employees: 11-50 | San Jose, CA, United States | 11-50 | Exact match | 130 contacts → |
“We Make Buildings Brilliant.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | E2se2s.fr HQ: Villeurbanne, FranceReported employees: 201-500 | Villeurbanne, France | 201-500 | Exact match | 124 contacts → |
“E2S, prend en charge l'entretien, le dépannage, les travaux de rénovation et d'optimisation, pour vos équipements, notamment de chauffage collectif, de petites et moyennes…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Grant Engineering UK LTDgrantuk.com HQ: Swindon, United KingdomReported employees: 51-200 | Swindon, United Kingdom | 51-200 | Exact match | 123 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Hometreehometree.co.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 119 contacts → |
“Hometree is a home energy services company on a mission to accelerate the transition to net zero.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Livgreenlivgreen.co.uk HQ: Bristol, United KingdomReported employees: 201-500 | Bristol, United Kingdom | 201-500 | Exact match | 117 contacts → |
“We are a leading provider of retrofit residential decarbonisation across the UK.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Jetsonjetsonhome.com HQ: North Vancouver, BC, CanadaReported employees: 201-500 | North Vancouver, BC, Canada | 201-500 | Exact match | 117 contacts → |
“Jetson is on a mission to accelerate the transition of 100M homes across North America away from burning fossil fuels to sustainable energy use.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | August Brötje Gmbhbroetje.de HQ: Rastede, GermanyReported employees: 201-500 | Rastede, Germany | 201-500 | Exact match | 117 contacts → |
“BRÖTJE efficient heating system technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Atag Verwarmingatagverwarming.nl HQ: Lichtenvoorde, NetherlandsReported employees: 51-200 | Lichtenvoorde, Netherlands | 51-200 | Exact match | 117 contacts → |
“In Lichtenvoorde ontwikkelt ATAG al decennialang verwarmingsoplossingen voor de Nederlandse markt.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 8,075 company matches
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Heating system retrofitting companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
7,524 records in the displayed employee bands.
551 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 8,075 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Heating system retrofitting companies by location
21 lists · largest firstEvery Heating system retrofitting companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Heating system retrofitting companies based in the United Kingdom1,247
- Heating system retrofitting companies based in France978
- Heating system retrofitting companies based in the United States976
- Heating system retrofitting companies based in Germany937
- Heating system retrofitting companies based in the Netherlands431
- Heating system retrofitting companies based in Italy381
- Heating system retrofitting companies based in Canada285
- Heating system retrofitting companies based in Belgium242
- Heating system retrofitting companies based in Spain235
- Heating system retrofitting companies based in Switzerland191
- Heating system retrofitting companies based in Poland151
- Heating system retrofitting companies based in Türkiye107
- Heating system retrofitting companies based in Australia100
- Heating system retrofitting companies based in Austria84
- Heating system retrofitting companies based in Ireland77
- Heating system retrofitting companies based in Sweden66
- Heating system retrofitting companies based in Czechia50
- Heating system retrofitting companies based in Denmark43
- Heating system retrofitting companies based in Finland41
- Heating system retrofitting companies based in Norway27
Cities
Questions about this company list
What does Exact match mean for heating system retrofitting companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many heating system retrofitting companies did RevenueBase find worldwide?
The saved snapshot records 8,075 matching company records, 48,310 tracked contacts and 11,084 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 heating system retrofitting companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/heating-system-retrofitting-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗