Company lists · Data refreshed November 2026

Top 25 District heating solar companies based in Austria

RevenueBase identified 91 company matches for district heating solar companies associated with Austria as of November 2026 and tracks 949 professional contacts across them, including 439 with verified work emails. Vienna is the largest hub.

This list covers company matches for district heating solar companies 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
91Companies
949Contacts tracked
439Verified emails
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The 25 largest district heating solar companies based in Austria

Ranked by team size
Top 25 of 91 company matches for district heating solar companies 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 matchMatrei, AustriaHQ recorded Nov 6, 2026501-1,000152 contacts →

Exact match

“WIR SORGEN FÜR IHR WOHLBEFINDEN.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchMarchtrenk, AustriaHQ recorded Nov 6, 2026201-50068 contacts →

Exact match

“Die technisch überlegenen Heiz- und Raumklimalösungen aus den Alpen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchVienna, AustriaHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“European solar experts who built the world's first floating solar platform at sea, SolarSea®, in 2014.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchVienna, AustriaHQ recorded Nov 6, 202651-20051 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchPinsdorf, AustriaHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“Over 4 decades of experience, more than installations and the constant further development of our technology are important cornerstones of the corporate strategy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact 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
8Exact matchLangkampfen, AustriaHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“A complete heating concept solution is presented in a Heliotherm heat pump system.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchVienna, AustriaHQ recorded Nov 6, 202611-5023 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchRied Im Innkreis, AustriaHQ recorded Nov 6, 202651-20022 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchWeissenkirchen Im Attergau, AustriaHQ recorded Nov 6, 202651-20020 contacts →

Exact match

“Aqotec GmbH with its headquarter in Austria is specialisted in renewable engery solutions in the field of biomass.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWels, AustriaHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“PWE System GmbH is a company based out of Franz-zola-straße 5, Wels, Oberösterreich, Austria.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchIrdning-donnersbachtal, AustriaHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“Überzeugt von dem enormen Potential der Sonne, ist es unser Antrieb, dieses für jeden einfach und zuverlässig nutzbar zu machen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWals Bei Salzburg, AustriaHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“VAS is an innovative, technology-driven full-service provider in the field of biomass plants, with over 30 years of experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact 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
16Exact 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
17Exact 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
18Exact matchSankt Johann In Tirol, AustriaHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Die Ortswärme St.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchVienna, AustriaHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Verwandle deine alte Ölheizung in einen innovativen Wärmespeicher – speichere überschüssige Energie und sicher dir eine nachhaltige, unabhängige Zukunft.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchKlosterneuburg, AustriaHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Transforming the world to net zero requires clean energy from local production.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBrunn Am Gebirge, AustriaHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Wir bieten schlüsselfertige Photovoltaik-Anlagen und Wärmepumpen für Gewerbebetriebe, Logistikdienstleister, Mehrparteienhäuser und Einfamilienhäuser.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchGraz, AustriaHQ recorded Nov 6, 20261-105 contacts →

Exact match

“At Arteria Technologies we are building software for planning and optimization of decentralized energy systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchPölfing-brunn, AustriaHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Fernheizwerk Pölfing Brunn”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSeekirchen, AustriaHQ recorded Nov 6, 2026201-5004 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 · Nov 6, 2026 · View company records in RevenueBase
25Exact matchWeiler, AustriaHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Wir entwickeln und produzieren innovative Lösungen für Nah- und Fernwärme.”

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

Showing 25 of 91 district heating solar companies based in Austria

See the full list, filter by size, metro and specialty, and access 439 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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District heating solar companies based in Austria at a glance

As of Nov 6, 2026
46.3%Verified-email coverage
10.4Average contacts per company
11-50Median size (employees)
6.6%Largest-city concentration · Vienna
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
39
11-50
27
51-200
15
201-500
5
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 91 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 “district heating solar 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. 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 439 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 “district heating solar companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many district heating solar companies are there based in Austria?

RevenueBase identified 91 company matches for district heating solar companies 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?

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 district heating solar companies?

Vienna leads with 6 company records, followed by Graz (5) and Innsbruck (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 439 professional contacts with verified work emails tracked across these 91 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.