Company lists · Data refreshed September 2026

Top 25 Renewable software companies based in Austria

RevenueBase identified 82 renewable software companies headquartered in Austria as of September 2026 and tracks 545 professional contacts across them, including 254 with verified work emails. Wien is the largest hub.

This list covers renewable software 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 21, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
82Companies
545Contacts tracked
254Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest renewable software companies based in Austria

Ranked by team size
Top 25 of 82 renewable software companies based in Austria, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to renewable software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceVienna, AustriaHQ checked Sep 21, 202651-20066 contacts →

Indirect evidence

“At Tset we’ve set out to revolutionize cost & carbon management for the manufacturing industry.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceMüllendorf, AustriaHQ checked Sep 21, 202651-20044 contacts →

Indirect evidence

“Nomen est omen – solar konzentriert sich auf nachhaltige Energiesysteme und -lösungen für das dritte Jahrtausend.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceVienna, AustriaHQ checked Sep 21, 202651-20044 contacts →

Indirect evidence

“CyberGrid is specialist in the development of innovative flexibility management solutions for a secure and clean grid.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidencePinsdorf, AustriaHQ checked Sep 21, 202651-20036 contacts →

Indirect 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 21, 2026
5Partial evidenceRaaba-grambach, AustriaHQ checked Sep 21, 202611-5022 contacts →

Partial evidence

“ENEXSA (formerly VTU Energy) is a team of highly qualified engineers with long-term experience in the power industry who offer consulting services and software solutions for the…”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceVienna, AustriaHQ checked Sep 21, 202611-5020 contacts →

Partial evidence

“e7 is a private research and consulting company specialized in the energy efficiency and the renewable energy sector.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceWien, AustriaHQ checked Sep 21, 202611-5018 contacts →

Partial evidence

“As a spin-off of the TU Vienna, we develop software that regularly transforms energy data into actionable tasks.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceGraz, AustriaHQ checked Sep 21, 202611-5013 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceSpittal An Der Drau, AustriaHQ checked Sep 21, 2026201-50011 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceLengau, AustriaHQ checked Sep 21, 202611-5010 contacts →

Partial evidence

“We are a growing technical office for renewable energy located in Friedburg /Upper Austria.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceVienna, AustriaHQ checked Sep 21, 202611-5010 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 21, 2026
12Indirect evidenceKlagenfurt, AustriaHQ checked Sep 21, 202611-509 contacts →

Indirect evidence

“Seit Jahrzehnten beschäftigen wir uns mit Energie- und Umweltdaten in Unternehmen.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidencePerg, AustriaHQ checked Sep 21, 202611-509 contacts →

Indirect evidence

“Sunlumo is new - a green technology company with a focus on solar energy.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceGraz, AustriaHQ checked Sep 21, 20261-107 contacts →

Indirect evidence

“i2m Unternehmensentwicklung GmbH is a research-driven technology development and innovation consultancy founded in Graz, Austria in 2014.”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceEngerwitzdorf, AustriaHQ checked Sep 21, 20261-106 contacts →

Partial evidence

“Energy+- your partner for renewable energies.”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceHolzhausen, AustriaHQ checked Sep 21, 202611-505 contacts →

Partial evidence

“Wir freuen uns, Ihnen unser Unternehmen vorstellen zu dürfen: Die ETU GmbH steht für Softwareentwicklung, Vertrieb und Schulung von Softwareprodukten.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceGleisdorf, AustriaHQ checked Sep 21, 202651-2005 contacts →

Indirect evidence

“Green Electrics unterstützt Sie als Komplettanbieter zuverlässig mit innovativen Lösungen in allen energiewirtschaftlichen Belangen zum Thema Licht, Photovoltaik, Smart Home und…”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceMattersburg, AustriaHQ checked Sep 21, 202611-505 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceSankt Margarethen An Der Raab, AustriaHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

“Greesma ist Ihr professioneller Partner für nachhaltige, intelligente und wirtschaftliche Energielösungen.”

Source: RevenueBase Database · checked Sep 21, 2026
20Partial evidenceGraz, AustriaHQ checked Sep 21, 20261-105 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceMötz, AustriaHQ checked Sep 21, 20261-104 contacts →

Indirect evidence

“Die beste Wahl für Großprojekte in nachhaltigen Energien.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceNeukirchen Am Großvenediger, AustriaHQ checked Sep 21, 202611-504 contacts →

Indirect evidence

“Unsere Lösungen umfassen- Photovoltaikanlagen: Planung, Förderung, Errichtung, Wartung & Service, Anlagenoptimierung - Steuerungssysteme: Steuer- & Regeltechnik, Gebäudetechnik…”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceArnreit, AustriaHQ checked Sep 21, 202651-2003 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceLinz, AustriaHQ checked Sep 21, 20261-103 contacts →

Indirect evidence

“Energiewende aus einer Hand: Als innovatives Unternehmen im Bereich erneuerbare Energien sind wir stolz darauf, individuelle Lösungen zu entwickeln, die zu einer nachhaltigen…”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceVienna, AustriaHQ checked Sep 21, 20261-103 contacts →

Partial evidence

Renewables are necessary for the energy transition and are getting more popular.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 82 renewable software companies based in Austria

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 254 reachable decision-makers.

Free signup · no credit card

View the full list →

Renewable software companies based in Austria at a glance

As of Sep 21, 2026
46.6%Verified-email coverage
6.6Average contacts per company
1-10Median size (employees)
11.0%Largest-city concentration · Wien
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
48
11-50
24
51-200
9
201-500
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 82 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 renewable software 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 “renewable software 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 renewable software 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 renewable software 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, 254 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 21, 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 renewable software 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 renewable software companies are there based in Austria?

RevenueBase identified 82 renewable software 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?

TSET, headquartered in Austria, tops this list with the largest team on record.

Which city has the most renewable software companies?

Wien leads with 9 headquartered companies, followed by Graz (7) and Vienna (6).

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 254 verified decision-maker contacts tracked across these 82 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 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 82 renewable software companies based in Austria. Start with a free account, no credit card.

Download this list →

Related 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.