Company lists · Data refreshed November 2026

Top 22 Solar water heating installers based in Austria

RevenueBase identified 69 company matches for solar water heating installers associated with Austria as of November 2026 and tracks 222 professional contacts across them, including 70 with verified work emails. Vienna is the largest hub.

This list covers company matches for solar water heating installers 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
69Companies
222Contacts tracked
70Verified emails
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The 22 largest solar water heating installers based in Austria

Ranked by team size
Top 22 of 69 company matches for solar water heating installers 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 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
2Exact 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
3Exact 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
4Exact 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
5Exact 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
6Exact 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
7Exact matchAurach, AustriaHQ recorded Nov 6, 202651-2004 contacts →

Exact match

“Seit mehr als vier Jahrzehnten gilt Hauschild weit über Kitzbühels Bezirksgrenzen hinaus als Inbegriff für professionelle Gebäudetechnik und erstklassige Badarchitektur.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHöfen, AustriaHQ recorded Nov 6, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchKöflach, AustriaHQ recorded Nov 6, 202611-502 contacts →

Exact match

“Wir, die H.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchPasching, AustriaHQ recorded Nov 6, 202611-502 contacts →

Exact match

“Sanitär & Installationen Wärme & Heizung Lüftung & Klima Alternative Energien”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSteyr, AustriaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Maier & Stelzer GmbH - Eferding | Wels | Steyr - Willkommen bei Zukunft Energie!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWolkersdorf, AustriaHQ recorded Nov 6, 202611-502 contacts →

Exact match

“Die Experten für eine sparsame, ökologische und zuverlässige Heizung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchWeißkirchen An Der Traun, AustriaHQ recorded Nov 6, 202611-502 contacts →

Exact match

“Pro Solar ist spezialisiert auf die Installation von Photovoltaikanlagen für Privat- und Geschäftskunden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchRastenfeld, AustriaHQ recorded Nov 6, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchTelfs, AustriaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Das Installationsunternehmen Auer in Fulpmes mit mehr als 70 Jahren Erfahrung im Bereich Heizung, Sanitär, Lüftung & Solar bietet Konzeption, Planung und Montage von Haustechnik…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchVolkermarkt, AustriaHQ recorded Nov 6, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchVorchdorf, AustriaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Im Jahr 2018 haben wir auch noch die Elektrokonzession beantragt und erhalten, dadurch können wir unseren Kunden ein All In Paket anbieten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBrunn Am Gebirge, AustriaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Willkommen bei Plumberama in Brunn am Gebirge!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchFriesach, AustriaHQ recorded Nov 6, 2026n/a2 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPettenbach, AustriaHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Biomasse, Öl, Gas, WP-Heizungen, Klima- und Kältetechnik, Solar, Sanitär, Service.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSalzburg, AustriaHQ recorded Nov 6, 2026n/a1 contacts →

Exact match

“Thermosan Haustechnik - mit neuen Ideen sowie modernen, energiesparenden Maßnahmen im Bereich der Sanitär-Wasseraufbereitungs-Heizungs-Solar-Klima und Lüftungstechnik werden wir…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchJennersdorf, AustriaHQ recorded Nov 6, 2026n/a1 contacts →

Exact match

“Reicht, Ing.”

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

Showing 22 of 69 solar water heating installers based in Austria

See the full list, filter by size, metro and specialty, and access 70 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Solar water heating installers based in Austria at a glance

As of Nov 6, 2026
31.5%Verified-email coverage
3.2Average contacts per company
1-10Median size (employees)
5.8%Largest-city concentration · Vienna
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
31
11-50
19
51-200
7

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 69 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 water heating installers” 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 70 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 water heating installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many solar water heating installers are there based in Austria?

RevenueBase identified 69 company matches for solar water heating installers 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?

Solid Solar Energy Systems Gmbh tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most solar water heating installers?

Vienna leads with 4 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 70 professional contacts with verified work emails tracked across these 69 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.