Company lists · Data refreshed September 2026

Top 25 Renewable energy software development companies based in Austria

Name: Renewable energy software development companies based in Austria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 164 companies tracked

RevenueBase identified 164 renewable energy software development companies headquartered in Austria as of September 2026 and tracks 1,267 professional contacts across them, including 556 with verified work emails and 30 with mobile numbers. Vienna is the largest hub.

This list covers renewable energy software development 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

164Companies

1,267Contacts tracked

556Verified emails

30Mobile numbers

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The 25 largest renewable energy software development companies based in Austria

Ranked by team size

Top 25 of 164 renewable energy software development companies based in Austria, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names renewable energy software development companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	RP GlobalStrong evidence	Vienne, AustriaHQ checked Sep 5, 2026	201-500	158
	“RP Global is a large-scale developer with 40+ years of experience in the renewable energy sector.” Source: company website · checked Sep 5, 2026
2	IDM Energiesysteme GmbhIndirect evidence	Matrei, AustriaHQ checked Sep 5, 2026	501-1,000	136
	“WIR SORGEN FÜR IHR WOHLBEFINDEN.” Source: company website · checked Sep 5, 2026
3	WEB Windenergie AGPartial evidence	Pfaffenschlag Bei Waidhofen, AustriaHQ checked Sep 5, 2026	201-500	91
	“WEB Windenergie AG is a renewables & environment company based in Pfaffenschlag near Waidhofen, Lower Austria.” Source: company website · checked Sep 5, 2026
4	Energy3000 Solar GmbhPartial evidence	Müllendorf, AustriaHQ checked Sep 5, 2026	51-200	44
	“Nomen est omen – solar konzentriert sich auf nachhaltige Energiesysteme und -lösungen für das dritte Jahrtausend.” Source: company website · checked Sep 5, 2026
5	CybergridPartial evidence	Vienna, AustriaHQ checked Sep 5, 2026	51-200	44
	“CyberGrid is specialist in the development of innovative flexibility management solutions for a secure and clean grid.” Source: company website · checked Sep 5, 2026
6	HeizmaStrong evidence	Vienna, AustriaHQ checked Sep 5, 2026	51-200	39
	“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…” Source: company website · checked Sep 5, 2026
7	M-Tec Energy For FuturePartial evidence	Pinsdorf, AustriaHQ checked Sep 5, 2026	51-200	36
	“Over 4 decades of experience, more than installations and the constant further development of our technology are important cornerstones of the corporate strategy.” Source: company website · checked Sep 5, 2026
8	AustriaenergyIndirect evidence	Vienna, AustriaHQ checked Sep 5, 2026	11-50	24
	“The AustriaEnergy Group is a global independent site developer with technology selección and IPP (Independent Power Producer) of utility-scale wind, green hydrogen and solar…” Source: company website · checked Sep 5, 2026
9	Sonnenkraft GmbhPartial evidence	Sankt Veit An Der Glan, AustriaHQ checked Sep 5, 2026	201-500	24
	“As a leading specialist in solar energy since 1993, based in St.” Source: company website · checked Sep 5, 2026
10	Enexsa GmbhStrong evidence	Raaba-grambach, AustriaHQ checked Sep 5, 2026	11-50	22
	“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: company website · checked Sep 5, 2026
11	E7 Energy Innovation & EngineeringStrong evidence	Vienna, AustriaHQ checked Sep 5, 2026	11-50	20
	“e7 is a private research and consulting company specialized in the energy efficiency and the renewable energy sector.” Source: company website · checked Sep 5, 2026
12	Ecowind HandelsIndirect evidence	Kilb, AustriaHQ checked Sep 5, 2026	11-50	18
	“ECOwind is an Austrian pioneer in the field of wind power.” Source: company website · checked Sep 5, 2026
13	nista.ioStrong evidence	Wien, AustriaHQ checked Sep 5, 2026	11-50	18
	“As a spin-off of the TU Vienna, we develop software that regularly transforms energy data into actionable tasks.” Source: company website · checked Sep 5, 2026
14	ÖkoenergiePartial evidence	Wolkersdorf, AustriaHQ checked Sep 5, 2026	11-50	13
	“Wir sind Windkraftpionier – Die ÖKOENERGIE Gruppe mit Firmensitz in Obersdorf, NÖ, ist seit 1995 im Bereich Erneuerbare Energie tätig und zählt damit zu den österreichischen…” Source: company website · checked Sep 5, 2026
15	Energy ServicesIndirect evidence	Graz, AustriaHQ checked Sep 5, 2026	11-50	13
	Source: company website · checked Sep 5, 2026
16	One2zeroIndirect evidence	Salzburg, AustriaHQ checked Sep 5, 2026	11-50	13
	“Vor dem Hintergrund aktueller klimatischer Prozesse, neuer gesetzlicher Rahmenbedingungen und hoher Kosten wird Dekarbonisierung zu einem der wichtigsten Themen in der…” Source: company website · checked Sep 5, 2026
17	CycleenergyPartial evidence	Vienna, AustriaHQ checked Sep 5, 2026	51-200	12
	“Maßgeschneiderte erneuerbare Energielösungen aus der Biomasse” Source: company website · checked Sep 5, 2026
18	PWE System GmbhIndirect evidence	Wels, AustriaHQ checked Sep 5, 2026	1-10	11
	“PWE System GmbH is a company based out of Franz-zola-straße 5, Wels, Oberösterreich, Austria.” Source: company website · checked Sep 5, 2026
19	Conversio Energie GmbhPartial evidence	Spittal An Der Drau, AustriaHQ checked Sep 5, 2026	201-500	11
	“Conversio Energie GmbH is a chemicals company based out of Koschatstraße 24, Spittal an der Drau, Austria.” Source: company website · checked Sep 5, 2026
20	EnergiewerkstattStrong evidence	Lengau, AustriaHQ checked Sep 5, 2026	11-50	10
	“We are a growing technical office for renewable energy located in Friedburg /Upper Austria.” Source: company website · checked Sep 5, 2026
21	VoltaresStrong evidence	Vienna, AustriaHQ checked Sep 5, 2026	11-50	10
	“Voltares is an independent renewable energy developer focused on utility-scale and distributed assets in emerging markets.” Source: company website · checked Sep 5, 2026
22	Energiepark Bruck LeithaPartial evidence	Gemeinde Bruck An Der Leitha, AustriaHQ checked Sep 5, 2026	11-50	10
	“Wir gestalten die Energiezukunft!” Source: company website · checked Sep 5, 2026
23	Eudt Energie- U. Umweltdatentreuhand GmbhPartial evidence	Klagenfurt, AustriaHQ checked Sep 5, 2026	11-50	9
	“Seit Jahrzehnten beschäftigen wir uns mit Energie- und Umweltdaten in Unternehmen.” Source: company website · checked Sep 5, 2026
24	Sunlumo Technology GmbhPartial evidence	Perg, AustriaHQ checked Sep 5, 2026	11-50	9
	“Sunlumo is new - a green technology company with a focus on solar energy.” Source: company website · checked Sep 5, 2026
25	Krone SonneIndirect evidence	Mattersburg, AustriaHQ checked Sep 5, 2026	11-50	8
	“Hol dir die Sonne aufs Dach!” Source: company website · checked Sep 5, 2026

Showing 25 of 164 renewable energy software development companies based in Austria

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Renewable energy software development companies based in Austria at a glance

As of Sep 5, 2026

1-10Median size (employees)

ViennaLargest hub · 16 HQs

30Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Verified emails by last verification

0–30

522

31–60

61–90

90–180

180+

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 energy software development companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 energy software development companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among renewable energy software development 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 an evidence 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, 556 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 5, 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

How many renewable energy software development companies are there based in Austria?

RevenueBase identified 164 renewable energy software development 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?

RP Global, headquartered in Vienne, tops this list with the largest team on record.

Which city has the most renewable energy software development companies?

Vienna leads with 16 headquartered companies, followed by Wien (13) and Graz (7).

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 556 verified decision-maker contacts tracked across these 164 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 5, 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.