Company lists · Data refreshed November 2026

Top 25 Heating system integrators based in Austria

RevenueBase identified 144 company matches for heating system integrators associated with Austria as of November 2026 and tracks 779 professional contacts across them, including 302 with verified work emails. Vienna is the largest hub.

This list covers company matches for heating system integrators 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 November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
144Companies
779Contacts tracked
302Verified emails
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The 25 largest heating system integrators based in Austria

Ranked by team size
Top 25 of 144 company matches for heating system integrators based in Austria, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchVienna, AustriaHQ recorded Nov 6, 2026201-50099 contacts →

Exact match

“Vaillant Österreich bietet #energiesparende und #umweltschonende Systeme für #Heizen,#Kühlen und #Warmwasser.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLinz, AustriaHQ recorded Nov 6, 2026501-1,00053 contacts →

Exact match

“Als führendes oberösterreichisches Unternehmen der Gebäude- und Anlagentechnik sind wir mit unserem umfassenden Angebot Ihr richtiger Partner.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchFreundorf, AustriaHQ recorded Nov 6, 202651-20034 contacts →

Exact match

“KUSTEC is your experienced and competent partner for all professional cooling and heating queries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchVienna, AustriaHQ recorded Nov 6, 2026201-50034 contacts →

Exact match

“Die 1873 in Wien eröffnete J.L.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGraz, AustriaHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“SOLID brings together extraordinary knowledge, experience in market application and R&D in areas of planning and operation of large-scale solar thermal energy systems and solar…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHenndorf, AustriaHQ recorded Nov 6, 202651-20027 contacts →

Exact match

“As a specialist in electric heating systems, ETHERMA provides you with a tailor-made service package with all the know-how you need for this.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLeobersdorf, AustriaHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Heizen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGraz, AustriaHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Die Firma ENERTEC ist ein Ingenieurbüro, das den gesamten Bereich der thermischen Energietechnik abdeckt, von der Kältetechnik, der klassischen Haustechnik mit Heizung…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchKöstendorf, AustriaHQ recorded Nov 6, 202611-5015 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchAltach, AustriaHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“Hörburger: Partner für hochwertige Energietechnik mit Zukunft Hörburger gilt als einer der regional führenden Experten für hochwertige Gesamtlösungen in den Bereichen Sanitär- und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAltach, AustriaHQ recorded Nov 6, 202651-20013 contacts →

Exact match

“TGS wurde 2005 gegrün­det.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSt. Barbara I. Mzt., AustriaHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“DER KOMPLETTANBIETER FÜR KOMFORTSYSTEME „Von der Wasserverteilung bis zur Wärmeabgabe“ klingt kompliziert, ist es aber nicht – vor allem nicht mit VOGEL & NOOT.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchWaasen, AustriaHQ recorded Nov 6, 202651-20011 contacts →

Exact match

“Unsere Leidenschaft liegt in der Entwicklung, Produktion und dem Vertrieb innovativer Heizsysteme und Haustechniklösungen, die Komfort, Effizienz und Nachhaltigkeit vereinen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchFeldbach, AustriaHQ recorded Nov 6, 202651-20010 contacts →

Exact match

“Die KGT Gebäudetechnik GmbH ist eines der führenden österreichischen Unternehmen in den Bereichen Heizung, Lüftung, Sanitär, Klima, Elektro, Sprinkleranlagen und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchGraz/pirka, AustriaHQ recorded Nov 6, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchTerfens, AustriaHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Seit der Gründung im Jahr 1992 hat sich technisch viel verändert - unser Leitbild ist jedoch dasselbe geblieben.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchVöcklabruck, AustriaHQ recorded Nov 6, 202611-509 contacts →

Exact match

“SYNERGIE DES GANZEN Alle Gewerke der technischen Gebäudeausrüstung Wir als Ingenieurbüro bieten Gebäudetechnische Gesamtlösungen aus den Bereichen Heizungstechnik…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLandeck, AustriaHQ recorded Nov 6, 202651-2008 contacts →

Exact match

“Innovativ und nachhaltig: Wir vereinen intelligente Energiesysteme unter Ihrem Dach.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchKirchbichl, AustriaHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Alles was das moderne Einfamilienhaus braucht.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchUnterwart, AustriaHQ recorded Nov 6, 202611-508 contacts →

Exact match

“easyTherm ist der Kompetenzführer für "Heizen mit Infrarot" und ein mehrfach prämiertes österreichisches Unternehmen mit seinem Kompetenzzentrum in Unterwart, welches sich auf die…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchGraz, AustriaHQ recorded Nov 6, 202651-2008 contacts →

Exact match

“Als Komplettanbieter liefern wir unseren Kunden die gesamte Gebäudetechnik aus einer Hand – also Elektro, Sicherheit, Steuerungen, Sanitär, Heizung und Lüftung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchStetten, AustriaHQ recorded Nov 6, 202651-2007 contacts →

Exact match

“Mit IMB haben Sie immer einen starken und verlässlichen Partner an Ihrer Seite!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGraz, AustriaHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Agnosys is your partner around automation of preventive fire protection systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchGaflenz, AustriaHQ recorded Nov 6, 202611-506 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchGraz, AustriaHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Mit Innovationskraft zur Gebäudetechnik der Zukunft Das Ingenieurbüro Lang steht seit 1986 für Haustechnikplanung mit Fokus auf Kälte- und Klimatechnik – heute bereits in zweiter…”

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

Showing 25 of 144 heating system integrators based in Austria

See the full list, filter by size, metro and specialty, and access 302 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heating system integrators based in Austria at a glance

As of Nov 6, 2026
38.8%Verified-email coverage
5.4Average contacts per company
1-10Median size (employees)
8.3%Largest-city concentration · Vienna
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
65
11-50
42
51-200
19
201-500
3
501-1,000
1

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 144 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 “heating system integrators” 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 302 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “heating system integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many heating system integrators are there based in Austria?

RevenueBase identified 144 company matches for heating system integrators associated with Austria 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?

Vaillant Österreich tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most heating system integrators?

Vienna leads with 12 company records, followed by Graz (9) and Linz (4).

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 302 professional contacts with verified work emails tracked across these 144 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.