Company lists · Data refreshed October 2026
Top 25 Energy efficient heating contractors based in Austria
RevenueBase identified 70 company matches for energy efficient heating contractors associated with Austria as of October 2026 and tracks 596 professional contacts across them, including 212 with verified work emails. Vienna is the largest hub.
This list covers company matches for energy efficient heating contractors associated with Austria, 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 October 12, 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.
The 25 largest energy efficient heating contractors based in Austria
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 141 contacts → | ||||
Exact match “WIR SORGEN FÜR IHR WOHLBEFINDEN.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 2 | 94 contacts → | ||||
Exact match “Vaillant Österreich bietet #energiesparende und #umweltschonende Systeme für #Heizen,#Kühlen und #Warmwasser.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 3 | 48 contacts → | ||||
Exact match “We’re building Austria’s fastest-growing clean energy company, combining technology, process excellence, and hands-on execution to make renewable heating and solar power radically…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 4 | 25 contacts → | ||||
Exact match “A complete heating concept solution is presented in a Heliotherm heat pump system.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 5 | 24 contacts → | ||||
Exact match “beyond carbon energy konzipiert, plant, realisiert, finanziert und betreibt weitestgehend emissionsfreie Wärme- und Kälteversorgung für Bestands- und Neubauimmobilien.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 6 | 13 contacts → | ||||
Exact match “Emissionsfreies Heizen und Kühlen im großvolumigen Wohnbau stellt hohe Anforderungen.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 7 | 13 contacts → | ||||
Exact match “Wir entwickeln und produzieren vorgefertigte Wärmepumpenmodule für den seriellen Heizungstausch von mehrgeschossigen Wohngebäuden, weg von Öl und Gas.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 8 | 7 contacts → | ||||
Exact match “Alles was das moderne Einfamilienhaus braucht.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 9 | 6 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 10 | 5 contacts → | ||||
Exact match “Die KNV-Energietechnik entwickelt, produziert und vertreibt effiziente und umweltfreundliche Energiesysteme, die CO2 einsparen, weniger Energie verbrauchen und die Umwelt…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 11 | 3 contacts → | ||||
Exact match “Windhager Beteiligungs GmbH is a company based out of ANTON-WINDHAGER-STRASSE 20, Seekirchen, Salzburg, Austria.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 12 | 2 contacts → | ||||
Exact match “M-TEC setzt sich seit 5 Jahrzehnten für die effiziente Nutzung erneuerbarer Energie ein.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 13 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 14 | 2 contacts → | ||||
Exact match “Die Experten für eine sparsame, ökologische und zuverlässige Heizung.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 15 | 2 contacts → | ||||
Exact match “Stellen Sie sich vor Sie erhalten für den Rest Ihres Lebens keine Rechnungen mehr für Öl oder Gas von Ihrem Versorger.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 16 | 2 contacts → | ||||
Exact match “Die Karl Flanyek GmbH ist ein traditions- und qualitätsbewusster Haustechnik-Dienstleister mit Firmensitz im Herzen von Stainz.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 17 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 18 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 19 | 2 contacts → | ||||
Exact match “Willkommen bei Plumberama in Brunn am Gebirge!” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 20 | 1 contacts → | ||||
Exact match “Qvantum Industries is an international industry that offers heat pumps for the next generation heating and cooling technologies that enables the decarbonization of our cities.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 21 | 1 contacts → | ||||
Exact match “Vor mehr als 80 Jahren hat unser Firmengründer Günther Schwank den ersten Gas- Infrarot-Hellstrahler erfunden.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 22 | 1 contacts → | ||||
Exact match “Sanitär & Installationen Wärme & Heizung Lüftung & Klima Alternative Energien” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 23 | 1 contacts → | ||||
Exact match “Die Feiner Kälte GmbH bietet energetisch sinnvolle und nachhaltige Gesamtkonzepte für Heiz- und Kühlsysteme.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 24 | 1 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 25 | 1 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 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 “energy efficient heating contractors”. 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 70 energy efficient heating contractors based in Austria
See the full list, filter by size, metro and specialty, and access 212 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy efficient heating contractors based in Austria at a glance
As of Oct 12, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Austria, so it is reported there. Company counts and contact totals on this page are exact for Austria, over 70 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 Austria whose business descriptions match “energy efficient heating contractors” 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 212 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 October 12, 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 “energy efficient heating contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy efficient heating contractors are there based in Austria?
RevenueBase identified 70 company matches for energy efficient heating contractors associated with Austria as of October 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?
IDM Energiesysteme Gmbh tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most energy efficient heating contractors?
Vienna leads with 9 company records, followed by Arnreit (2) and Dornbirn (2).
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 212 professional contacts with verified work emails tracked across these 70 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 October 12, 2026.
Ready to reach these companies? Verified emails and direct dials for all 70 energy efficient heating contractors based in Austria. Start with a free account, no credit card.
Download this list →Related lists
Energy efficient heating contractors by geography
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- Energy efficient heating contractors based in Belgium
- Energy efficient heating contractors based in Canada
- Energy efficient heating contractors based in Czechia
- Energy efficient heating contractors based in Denmark
- Energy efficient heating contractors based in Finland
- Energy efficient heating contractors based in France
- Energy efficient heating contractors based in Germany
- Energy efficient heating contractors based in India
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy efficient heating contractors based in Toronto, Canada
- Energy efficient heating contractors based in Berlin, Germany
- Energy efficient heating contractors based in London, United Kingdom
- Energy efficient heating contractors based in Australia
- Energy efficient heating contractors based in Belgium
- Energy efficient heating contractors based in Canada
Company intelligence · public preview
Top 25 energy efficient heating contractors based in Austria
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 70 matching company records for energy efficient heating contractors based in Austria, with 596 tracked contacts and 212 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: October 12, 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 energy efficient heating contractors based in Austria
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 |  IDM Energiesysteme Gmbhidm-energie.atHQ: Matrei, AustriaReported employees: 501-1,000 | Matrei, Austria | 501-1,000 | Exact match | 141 contacts → |
“WIR SORGEN FÜR IHR WOHLBEFINDEN.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Vaillant Österreichvaillant.at HQ: Vienna, AustriaReported employees: 201-500 | Vienna, Austria | 201-500 | Exact match | 94 contacts → |
“Vaillant Österreich bietet #energiesparende und #umweltschonende Systeme für #Heizen,#Kühlen und #Warmwasser.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Heizmaheizma.atHQ: Vienna, AustriaReported employees: 51-200 | Vienna, Austria | 51-200 | Exact match | 48 contacts → |
“We’re building Austria’s fastest-growing clean energy company, combining technology, process excellence, and hands-on execution to make renewable heating and solar power radically…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Heliotherm Wärmepumpentechnik Ges.M.B.Hheliotherm.com HQ: Langkampfen, AustriaReported employees: 51-200 | Langkampfen, Austria | 51-200 | Exact match | 25 contacts → |
“A complete heating concept solution is presented in a Heliotherm heat pump system.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Beyond Carbon Energybeyondcarbon.energyHQ: Vienna, AustriaReported employees: 11-50 | Vienna, Austria | 11-50 | Exact match | 24 contacts → |
“beyond carbon energy konzipiert, plant, realisiert, finanziert und betreibt weitestgehend emissionsfreie Wärme- und Kälteversorgung für Bestands- und Neubauimmobilien.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Roots Energyroots.energy HQ: Vienna, AustriaReported employees: 11-50 | Vienna, Austria | 11-50 | Exact match | 13 contacts → |
“Emissionsfreies Heizen und Kühlen im großvolumigen Wohnbau stellt hohe Anforderungen.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Enercube Gmbhenercube.at HQ: Köstendorf, AustriaReported employees: 11-50 | Köstendorf, Austria | 11-50 | Exact match | 13 contacts → |
“Wir entwickeln und produzieren vorgefertigte Wärmepumpenmodule für den seriellen Heizungstausch von mehrgeschossigen Wohngebäuden, weg von Öl und Gas.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Ovum Wärmepumpenovum.at HQ: Kirchbichl, AustriaReported employees: 11-50 | Kirchbichl, Austria | 11-50 | Exact match | 7 contacts → |
“Alles was das moderne Einfamilienhaus braucht.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Harreither Gmbhharreither.com HQ: Gaflenz, AustriaReported employees: 11-50 | Gaflenz, Austria | 11-50 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | KNV Energietechnikknv.at HQ: Schorfling Am Attersee, AustriaReported employees: 51-200 | Schorfling Am Attersee, Austria | 51-200 | Exact match | 5 contacts → |
“Die KNV-Energietechnik entwickelt, produziert und vertreibt effiziente und umweltfreundliche Energiesysteme, die CO2 einsparen, weniger Energie verbrauchen und die Umwelt…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Windhager Beteiligungs Gmbhwindhager.comHQ: Seekirchen, AustriaReported employees: 201-500 | Seekirchen, Austria | 201-500 | Exact match | 3 contacts → |
“Windhager Beteiligungs GmbH is a company based out of ANTON-WINDHAGER-STRASSE 20, Seekirchen, Salzburg, Austria.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | M-Tec Energie.Innovativ Gmbhm-tec.at HQ: Arnreit, AustriaReported employees: 51-200 | Arnreit, Austria | 51-200 | Exact match | 2 contacts → |
“M-TEC setzt sich seit 5 Jahrzehnten für die effiziente Nutzung erneuerbarer Energie ein.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Bauer UND Co. Gesellschaft M. B. Hbauer-co.at HQ: Lichtenwörth, AustriaReported employees: 1-10 | Lichtenwörth, Austria | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 |  Duplex Haustechnik Gmbhduplex-haustechnik.atHQ: Wolkersdorf, AustriaReported employees: 11-50 | Wolkersdorf, Austria | 11-50 | Exact match | 2 contacts → |
“Die Experten für eine sparsame, ökologische und zuverlässige Heizung.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Teramex Austria Gmbhteramex.at HQ: Radenthein, AustriaReported employees: 11-50 | Radenthein, Austria | 11-50 | Exact match | 2 contacts → |
“Stellen Sie sich vor Sie erhalten für den Rest Ihres Lebens keine Rechnungen mehr für Öl oder Gas von Ihrem Versorger.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Karl Flanyek Gmbhflanyek.atHQ: Stainz, AustriaReported employees: 11-50 | Stainz, Austria | 11-50 | Exact match | 2 contacts → |
“Die Karl Flanyek GmbH ist ein traditions- und qualitätsbewusster Haustechnik-Dienstleister mit Firmensitz im Herzen von Stainz.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Richard Feuerstein Gmbhrichard-feuerstein.at HQ: Höfen, AustriaReported employees: 1-10 | Höfen, Austria | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | Lemp Energietechniklemp-energietechnik.at HQ: Rastenfeld, AustriaReported employees: 1-10 | Rastenfeld, Austria | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 |  Plumberama Installationenplumberama.atHQ: Brunn Am Gebirge, AustriaReported employees: 1-10 | Brunn Am Gebirge, Austria | 1-10 | Exact match | 2 contacts → |
“Willkommen bei Plumberama in Brunn am Gebirge!” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Qvantum Austriaqvantum.com HQ: Wallern An Der Trattnach, AustriaReported employees: 201-500 | Wallern An Der Trattnach, Austria | 201-500 | Exact match | 1 contacts → |
“Qvantum Industries is an international industry that offers heat pumps for the next generation heating and cooling technologies that enables the decarbonization of our cities.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Schwank Österreichschwank.at HQ: Vienna, AustriaReported employees: 11-50 | Vienna, Austria | 11-50 | Exact match | 1 contacts → |
“Vor mehr als 80 Jahren hat unser Firmengründer Günther Schwank den ersten Gas- Infrarot-Hellstrahler erfunden.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | A. Laban Betriebs Gmbhlaban.at HQ: Pasching, AustriaReported employees: 11-50 | Pasching, Austria | 11-50 | Exact match | 1 contacts → |
“Sanitär & Installationen Wärme & Heizung Lüftung & Klima Alternative Energien” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Feiner Kälte Gmbhfeiner-kaelte.atHQ: Grafenschachen, AustriaReported employees: 1-10 | Grafenschachen, Austria | 1-10 | Exact match | 1 contacts → |
“Die Feiner Kälte GmbH bietet energetisch sinnvolle und nachhaltige Gesamtkonzepte für Heiz- und Kühlsysteme.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Haustechnik Brucknerhaustechnikbruckner.at HQ: Purgstall An Der Erlauf, AustriaReported employees: 1-10 | Purgstall An Der Erlauf, Austria | 1-10 | Exact match | 1 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Donau Kälte Gmbhdonaukaelte.at HQ: Vienna, AustriaReported employees: 1-10 | Vienna, Austria | 1-10 | Exact match | 1 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 70 company matches
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Energy efficient heating contractors: dataset insights
October 12, 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
68 records in the displayed employee bands.
2 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 worldwide rather than for Austria, so it is reported there. Company counts and contact totals on this page are exact for Austria, over 70 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: October 12, 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 ↗
Questions about this company list
What does Exact match mean for energy efficient heating contractors?
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 energy efficient heating contractors did RevenueBase find based in Austria?
The saved snapshot records 70 matching company records, 596 tracked contacts and 212 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: October 12, 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
Energy efficient heating contractors by geography
- Energy efficient heating contractors based in Toronto, Canada
- Energy efficient heating contractors based in Berlin, Germany
- Energy efficient heating contractors based in London, United Kingdom
- Energy efficient heating contractors based in Australia
- Energy efficient heating contractors based in Belgium
- Energy efficient heating contractors based in Canada
- Energy efficient heating contractors based in Czechia
- Energy efficient heating contractors based in Denmark
- Energy efficient heating contractors based in Finland
- Energy efficient heating contractors based in France
- Energy efficient heating contractors based in Germany
- Energy efficient heating contractors based in India
Cite this list
RevenueBase Data Team. Top 25 energy efficient heating contractors based in Austria. Snapshot: October 12, 2026. https://revenuebase.ai/companies/energy-efficient-heating-contractors/austria.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy efficient heating contractors based in Toronto, Canada
- Energy efficient heating contractors based in Berlin, Germany
- Energy efficient heating contractors based in London, United Kingdom
- Energy efficient heating contractors based in Australia
- Energy efficient heating contractors based in Belgium
- Energy efficient heating contractors based in Canada
Company intelligence · public preview
Top 25 energy efficient heating contractors based in Austria
RevenueBase records 70 matching company records for energy efficient heating contractors based in Austria, with 596 tracked contacts and 212 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: October 12, 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 energy efficient heating contractors based in Austria
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 | IDM Energiesysteme Gmbhidm-energie.at HQ: Matrei, AustriaReported employees: 501-1,000 | Matrei, Austria | 501-1,000 | Exact match | 141 contacts → |
“WIR SORGEN FÜR IHR WOHLBEFINDEN.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Vaillant Österreichvaillant.at HQ: Vienna, AustriaReported employees: 201-500 | Vienna, Austria | 201-500 | Exact match | 94 contacts → |
“Vaillant Österreich bietet #energiesparende und #umweltschonende Systeme für #Heizen,#Kühlen und #Warmwasser.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Heizmaheizma.at HQ: Vienna, AustriaReported employees: 51-200 | Vienna, Austria | 51-200 | Exact match | 48 contacts → |
“We’re building Austria’s fastest-growing clean energy company, combining technology, process excellence, and hands-on execution to make renewable heating and solar power radically…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Heliotherm Wärmepumpentechnik Ges.M.B.Hheliotherm.com HQ: Langkampfen, AustriaReported employees: 51-200 | Langkampfen, Austria | 51-200 | Exact match | 25 contacts → |
“A complete heating concept solution is presented in a Heliotherm heat pump system.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Beyond Carbon Energybeyondcarbon.energy HQ: Vienna, AustriaReported employees: 11-50 | Vienna, Austria | 11-50 | Exact match | 24 contacts → |
“beyond carbon energy konzipiert, plant, realisiert, finanziert und betreibt weitestgehend emissionsfreie Wärme- und Kälteversorgung für Bestands- und Neubauimmobilien.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Roots Energyroots.energy HQ: Vienna, AustriaReported employees: 11-50 | Vienna, Austria | 11-50 | Exact match | 13 contacts → |
“Emissionsfreies Heizen und Kühlen im großvolumigen Wohnbau stellt hohe Anforderungen.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Enercube Gmbhenercube.at HQ: Köstendorf, AustriaReported employees: 11-50 | Köstendorf, Austria | 11-50 | Exact match | 13 contacts → |
“Wir entwickeln und produzieren vorgefertigte Wärmepumpenmodule für den seriellen Heizungstausch von mehrgeschossigen Wohngebäuden, weg von Öl und Gas.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Ovum Wärmepumpenovum.at HQ: Kirchbichl, AustriaReported employees: 11-50 | Kirchbichl, Austria | 11-50 | Exact match | 7 contacts → |
“Alles was das moderne Einfamilienhaus braucht.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Harreither Gmbhharreither.com HQ: Gaflenz, AustriaReported employees: 11-50 | Gaflenz, Austria | 11-50 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | KNV Energietechnikknv.at HQ: Schorfling Am Attersee, AustriaReported employees: 51-200 | Schorfling Am Attersee, Austria | 51-200 | Exact match | 5 contacts → |
“Die KNV-Energietechnik entwickelt, produziert und vertreibt effiziente und umweltfreundliche Energiesysteme, die CO2 einsparen, weniger Energie verbrauchen und die Umwelt…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Windhager Beteiligungs Gmbhwindhager.com HQ: Seekirchen, AustriaReported employees: 201-500 | Seekirchen, Austria | 201-500 | Exact match | 3 contacts → |
“Windhager Beteiligungs GmbH is a company based out of ANTON-WINDHAGER-STRASSE 20, Seekirchen, Salzburg, Austria.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | M-Tec Energie.Innovativ Gmbhm-tec.at HQ: Arnreit, AustriaReported employees: 51-200 | Arnreit, Austria | 51-200 | Exact match | 2 contacts → |
“M-TEC setzt sich seit 5 Jahrzehnten für die effiziente Nutzung erneuerbarer Energie ein.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Bauer UND Co. Gesellschaft M. B. Hbauer-co.at HQ: Lichtenwörth, AustriaReported employees: 1-10 | Lichtenwörth, Austria | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | Duplex Haustechnik Gmbhduplex-haustechnik.at HQ: Wolkersdorf, AustriaReported employees: 11-50 | Wolkersdorf, Austria | 11-50 | Exact match | 2 contacts → |
“Die Experten für eine sparsame, ökologische und zuverlässige Heizung.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Teramex Austria Gmbhteramex.at HQ: Radenthein, AustriaReported employees: 11-50 | Radenthein, Austria | 11-50 | Exact match | 2 contacts → |
“Stellen Sie sich vor Sie erhalten für den Rest Ihres Lebens keine Rechnungen mehr für Öl oder Gas von Ihrem Versorger.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Karl Flanyek Gmbhflanyek.at HQ: Stainz, AustriaReported employees: 11-50 | Stainz, Austria | 11-50 | Exact match | 2 contacts → |
“Die Karl Flanyek GmbH ist ein traditions- und qualitätsbewusster Haustechnik-Dienstleister mit Firmensitz im Herzen von Stainz.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Richard Feuerstein Gmbhrichard-feuerstein.at HQ: Höfen, AustriaReported employees: 1-10 | Höfen, Austria | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | Lemp Energietechniklemp-energietechnik.at HQ: Rastenfeld, AustriaReported employees: 1-10 | Rastenfeld, Austria | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 | Plumberama Installationenplumberama.at HQ: Brunn Am Gebirge, AustriaReported employees: 1-10 | Brunn Am Gebirge, Austria | 1-10 | Exact match | 2 contacts → |
“Willkommen bei Plumberama in Brunn am Gebirge!” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Qvantum Austriaqvantum.com HQ: Wallern An Der Trattnach, AustriaReported employees: 201-500 | Wallern An Der Trattnach, Austria | 201-500 | Exact match | 1 contacts → |
“Qvantum Industries is an international industry that offers heat pumps for the next generation heating and cooling technologies that enables the decarbonization of our cities.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Schwank Österreichschwank.at HQ: Vienna, AustriaReported employees: 11-50 | Vienna, Austria | 11-50 | Exact match | 1 contacts → |
“Vor mehr als 80 Jahren hat unser Firmengründer Günther Schwank den ersten Gas- Infrarot-Hellstrahler erfunden.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | A. Laban Betriebs Gmbhlaban.at HQ: Pasching, AustriaReported employees: 11-50 | Pasching, Austria | 11-50 | Exact match | 1 contacts → |
“Sanitär & Installationen Wärme & Heizung Lüftung & Klima Alternative Energien” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Feiner Kälte Gmbhfeiner-kaelte.at HQ: Grafenschachen, AustriaReported employees: 1-10 | Grafenschachen, Austria | 1-10 | Exact match | 1 contacts → |
“Die Feiner Kälte GmbH bietet energetisch sinnvolle und nachhaltige Gesamtkonzepte für Heiz- und Kühlsysteme.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Haustechnik Brucknerhaustechnikbruckner.at HQ: Purgstall An Der Erlauf, AustriaReported employees: 1-10 | Purgstall An Der Erlauf, Austria | 1-10 | Exact match | 1 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Donau Kälte Gmbhdonaukaelte.at HQ: Vienna, AustriaReported employees: 1-10 | Vienna, Austria | 1-10 | Exact match | 1 contacts → |
No recorded description excerpt is available for this public record. | |||||
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Energy efficient heating contractors: dataset insights
October 12, 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
68 records in the displayed employee bands.
2 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 worldwide rather than for Austria, so it is reported there. Company counts and contact totals on this page are exact for Austria, over 70 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: October 12, 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 ↗
Questions about this company list
What does Exact match mean for energy efficient heating contractors?
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 energy efficient heating contractors did RevenueBase find based in Austria?
The saved snapshot records 70 matching company records, 596 tracked contacts and 212 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: October 12, 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 energy efficient heating contractors based in Austria. Snapshot: October 12, 2026. https://revenuebase.ai/companies/energy-efficient-heating-contractors/austria.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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