Company lists · Data refreshed November 2026

Top 25 Solar heating system integrators based in Austria

RevenueBase identified 143 company matches for solar heating system integrators associated with Austria as of November 2026 and tracks 740 professional contacts across them, including 257 with verified work emails. Vienna is the largest hub.

This list covers company matches for solar 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
143Companies
740Contacts tracked
257Verified emails
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The 25 largest solar heating system integrators based in Austria

Ranked by team size
Top 25 of 143 company matches for solar 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 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
3Exact 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
4Exact 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
5Exact 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
6Exact matchEben Im Pongau, AustriaHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“Als Full-Service-Photovoltaikanbieter mit integriertem Energiemanagement sind wir stolz darauf, unseren Kunden maßgeschneiderte PV-Lösungen anzubieten, die exakt auf ihre…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchVienna, AustriaHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“We are a professional full-service implementation partner specializing in the planning, project development, construction and operation of large-scale photovoltaic systems for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchKlagenfurt, AustriaHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“UNSERE KERNKOMPETENZEN: • Technisch optimierte Photovoltaik Anlagenplanung • Anlagenplanung für höchste Erträge (z.B.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact 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
10Exact 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
11Exact matchGmunden, AustriaHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“Wir beraten, planen, installieren / montieren, reparieren, servicieren u.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSpittal An Der Drau, AustriaHQ recorded Nov 6, 2026201-50012 contacts →

Exact match

“Conversio Energie GmbH is a chemicals company based out of Koschatstraße 24, Spittal an der Drau, Austria.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchFohnsdorf, AustriaHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Welcome to Solarvie, your premier destination for all your solar energy product needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWeißkirchen, AustriaHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Ökosolar ist ein führender Anbieter im Bereich Photovoltaik mit einer klaren Mission: die breite Nutzung von erneuerbarer Sonnenenergie mithilfe von qualitativ hochwertigen…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact 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
16Exact 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
17Exact 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
18Exact matchMattersburg, AustriaHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Wir haben es uns seit 2011 zur Aufgabe gemacht, das Potential der Sonne als Energiequelle zu nutzen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchEbensee, AustriaHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Die Secundo Photovoltaik GmbH setzt für Ihr Industrie und Gewerbeunternehmen Photovoltaikanlagen mit Komplettlösungen um.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact 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
21Exact matchGröbming, AustriaHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Ihr Installateur-Profi für Heizung, Sanitär, Alternativenergie, Lüftungsanlagen, Elektroinstallationen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchArnreit, AustriaHQ recorded Nov 6, 202651-2004 contacts →

Exact match

“M-TEC setzt sich seit 5 Jahrzehnten für die effiziente Nutzung erneuerbarer Energie ein.”

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

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAmstetten, AustriaHQ recorded Nov 6, 202611-504 contacts →

Exact match

“ertex solar is a flexible team of specialists with 70 years of experience in glass construction.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchKematen, AustriaHQ recorded Nov 6, 202611-504 contacts →

Exact match

“As a producer of energy-saving heat and heating technology, WMT develops innovative and economical infrared panels for the private and public sector.”

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

Showing 25 of 143 solar heating system integrators based in Austria

See the full list, filter by size, metro and specialty, and access 257 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Solar heating system integrators based in Austria at a glance

As of Nov 6, 2026
34.7%Verified-email coverage
5.2Average contacts per company
1-10Median size (employees)
7.0%Largest-city concentration · Vienna
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
65
11-50
47
51-200
14
201-500
3

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 143 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 “solar 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 257 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 “solar heating system integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many solar heating system integrators are there based in Austria?

RevenueBase identified 143 company matches for solar 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 solar heating system integrators?

Vienna leads with 10 company records, followed by Amstetten (3) and Dornbirn (3).

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 257 professional contacts with verified work emails tracked across these 143 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.