Company lists · Data refreshed September 2026
Top 25 Energy technology companies based in Austria
RevenueBase identified 129 energy technology companies headquartered in Austria as of September 2026 and tracks 1,313 professional contacts across them, including 573 with verified work emails. Vienna is the largest hub.
This list covers energy technology companies headquartered in Austria, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest energy technology companies based in Austria
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 336 contacts → | ||||
Partial evidence “We are Fronius, an Austrian company specializing in welding technology, photovoltaics, and battery charging technology.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 158 contacts → | ||||
Partial evidence “RP Global is a large-scale developer with 40+ years of experience in the renewable energy sector.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 95 contacts → | ||||
Partial evidence “Humanity is finally saying goodbye to energy production through oil, gas, coal or nuclear fusion towards renewable energy through wind, water and sun.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 63 contacts → | ||||
Partial evidence “We offer our customers in the international power plant and plant engineering sectors a wide range of advanced solutions for sustainable energy generation.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 53 contacts → | ||||
Strong evidence “Wolftank Group is a globally active, leading technology partner for energy and environmental solutions.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 44 contacts → | ||||
Partial evidence “Nomen est omen – solar konzentriert sich auf nachhaltige Energiesysteme und -lösungen für das dritte Jahrtausend.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 36 contacts → | ||||
Partial evidence “Over 4 decades of experience, more than installations and the constant further development of our technology are important cornerstones of the corporate strategy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 29 contacts → | ||||
Indirect evidence “Wir, das Team der electrify, engagieren uns für innovative Mobilitätskonzepte, die den Umweltschutz auf die Straße bringen, die Sonnenenergie zu den Menschen und den…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 24 contacts → | ||||
Partial evidence “As a leading specialist in solar energy since 1993, based in St.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 16 contacts → | ||||
Indirect evidence “Providing power generating and distributing solutions all over the world!” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 16 contacts → | ||||
Partial evidence “tde is dedicated to helping companies in the energy industry reach new levels of operational excellence in terms of safety, speed, consistency, cost reduction and positive impact…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 12 contacts → | ||||
Indirect evidence “Überzeugt von dem enormen Potential der Sonne, ist es unser Antrieb, dieses für jeden einfach und zuverlässig nutzbar zu machen.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 11 contacts → | ||||
Partial evidence “We are an Energy Service Company (ESCO) from Tyrol that has set itself the task of realising clean and sustainable solutions for the energy use of companies and private households.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 11 contacts → | ||||
Partial evidence “Conversio Energie GmbH is a chemicals company based out of Koschatstraße 24, Spittal an der Drau, Austria.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 10 contacts → | ||||
Partial evidence “Voltares is an independent renewable energy developer focused on utility-scale and distributed assets in emerging markets.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 9 contacts → | ||||
Strong evidence “Sunlumo is new - a green technology company with a focus on solar energy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 contacts → | ||||
Partial evidence “LINK3 entwickelt und produziert innovative Schichtenspeicher für eine effiziente und zuverlässige Energieversorgung.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 contacts → | ||||
Partial evidence “i2m Unternehmensentwicklung GmbH is a research-driven technology development and innovation consultancy founded in Graz, Austria in 2014.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 contacts → | ||||
Partial evidence “Greesma ist Ihr professioneller Partner für nachhaltige, intelligente und wirtschaftliche Energielösungen.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 4 contacts → | ||||
Partial evidence “Die beste Wahl für Großprojekte in nachhaltigen Energien.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 contacts → | ||||
Strong evidence “At novventos, we’re driven by the ambition to develop breakthrough technology that harnesses nature’s power to produce clean, sustainable energy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Indirect evidence “Wir dimensionieren und fertigen Produkte für Speichertechnik, Abwärmenutzung und Wärmerückgewinnung.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Partial evidence “Energy available whenever you need it - energy storage systems for residential, industrial and RES farms applications FullSet is all about: protection of your home or business…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Partial evidence “Sustainable investments in sustainable energy – made in Austria” • We are an that operates internationally and specializes in investments in renewable energy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Indirect evidence “Unsere Lösungen umfassen- Photovoltaikanlagen: Planung, Förderung, Errichtung, Wartung & Service, Anlagenoptimierung - Steuerungssysteme: Steuer- & Regeltechnik, Gebäudetechnik…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: energy technology companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names energy technology companies.
- Partial evidence
- Its own public description names part of energy technology companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name energy technology companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 129 energy technology companies based in Austria
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 573 reachable decision-makers.
Free signup · no credit card
Energy technology companies based in Austria at a glance
As of Sep 16, 2026Companies by employee count
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 129 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among energy technology companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Austria whose own description of what they do matches “energy technology companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names energy technology companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among energy technology companies, and records with no verified work email. Companies headquartered outside Austria are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 573 across the full list. 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 September 16, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names energy technology companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many energy technology companies are there based in Austria?
RevenueBase identified 129 energy technology companies headquartered in Austria as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Fronius International, headquartered in Wels, tops this list with the largest team on record.
Which city has the most energy technology companies?
Vienna leads with 8 headquartered companies, followed by Wien (7) and Linz (5).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 573 verified decision-maker contacts tracked across these 129 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 129 energy technology companies based in Austria. Start with a free account, no credit card.
Download this list →Related lists
Energy technology companies by geography
- Energy technology companies based in Brisbane, Australia
- Energy technology companies based in Melbourne, Australia
- Energy technology companies based in Sydney, Australia
- Energy technology companies based in Belo Horizonte, Brazil
- Energy technology companies based in Fortaleza, Brazil
- Energy technology companies based in Rio De Janeiro, Brazil
- Energy technology companies based in Sao Paulo, Brazil
- Energy technology companies based in Berlin, Germany
- Energy technology companies based in Hamburg, Germany
- Energy technology companies based in Munich, Germany
- Energy technology companies based in Ahmedabad, India
- Energy technology companies based in Bangalore, India
Browse the directory
Browse: Companies home · All Austria lists · All Energy technology companies lists · New lists
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 Smart Search, 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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy technology companies based in Brisbane, Australia
- Energy technology companies based in Melbourne, Australia
- Energy technology companies based in Sydney, Australia
- Energy technology companies based in Belo Horizonte, Brazil
- Energy technology companies based in Fortaleza, Brazil
- Energy technology companies based in Rio De Janeiro, Brazil