Company lists · Data refreshed November 2026

Top 24 Biomass heating system installers based in Austria

RevenueBase identified 68 company matches for biomass heating system installers associated with Austria as of November 2026 and tracks 681 professional contacts across them, including 198 with verified work emails. Graz is the largest hub.

This list covers company matches for biomass heating system 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
68Companies
681Contacts tracked
198Verified emails
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The 24 largest biomass heating system installers based in Austria

Ranked by team size
Top 24 of 68 company matches for biomass heating system 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 matchWeng, AustriaHQ recorded Nov 6, 2026501-1,000124 contacts →

Exact match

“Die Natur ist unsere Lebensader.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSeekirchen Am Wallersee, AustriaHQ recorded Nov 6, 2026501-1,000111 contacts →

Exact match

“Die Zukunft des Heizens beginnt hier.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchGrieskirchen, AustriaHQ recorded Nov 6, 2026501-1,00043 contacts →

Exact match

“Wir sind einer der führenden europäischen Hersteller innovativer und umweltfreundlicher Heizsysteme (Scheitholz, Hackgut, Pellets).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHofkirchen An Der Trattnach, AustriaHQ recorded Nov 6, 2026201-50039 contacts →

Exact match

“Vom Hausruckviertel in die ganze Welt!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchNiederkappel, AustriaHQ recorded Nov 6, 2026201-50037 contacts →

Exact match

“The name ÖkoFEN stands since its foundation in 1989 for ecological research and development of environmentally friendly pellet heating systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact 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
8Exact 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
9Exact 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
10Exact matchKumberg, AustriaHQ recorded Nov 6, 20261-104 contacts →

Exact match

“ICS ENERGIETECHNIK is developing, engineering and realizing biomass energy projects in the thermal power range of 2.30 MW for agricultural and industrial plant applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact 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
12Exact matchLieboch, 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
13Exact 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
14Exact matchPurgstall An Der Erlauf, 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 matchWolfau, AustriaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Wer mit Holz heizt, kennt sie, diese Momente des Wohlgefühls.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact 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
18Exact matchWolfurt, AustriaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“3D-eHEAT GmbH entwickelt und vertreibt ökologisch-ökonomische Flächenheizungen auf Basis von Kohlenstoff-Technologie die für Boden, Wand und Decke geeignet sind.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAmstetten, AustriaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Energieeffiziente Haustechniksysteme sind der Garant für niedrigste Heizkosten, ob Passivhaus oder Vierkanthof wir haben die passende Heizung für Ihr Haus.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact 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
21Exact matchObertrum Am See, AustriaHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Anglberger in Obertrum am See steht für umweltbewusstes Heizen, den sinnvollen Einsatz von Alternativenergie, Wasserleitungen und Badeinrichtung, für Wohnung, Haus und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchKapfenberg, AustriaHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Eine nachhaltige und fortschrittliche Wärmeversorgung für eine ganze Region”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact 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
24Exact 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 24 of 68 biomass heating system installers based in Austria

See the full list, filter by size, metro and specialty, and access 198 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Biomass heating system installers based in Austria at a glance

As of Nov 6, 2026
29.1%Verified-email coverage
10.0Average contacts per company
1-10Median size (employees)
2.9%Largest-city concentration · Graz
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
13
51-200
8
201-500
5
501-1,000
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 68 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 “biomass heating system 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 198 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 “biomass heating system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many biomass heating system installers are there based in Austria?

RevenueBase identified 68 company matches for biomass heating system 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?

Hargassner GES MBH tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most biomass heating system installers?

Graz leads with 2 company records, followed by Hard (2) and Niederkappel (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 198 professional contacts with verified work emails tracked across these 68 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.