Company lists · Data refreshed September 2026

Top 25 Solar software development companies based in Austria

RevenueBase identified 142 solar software development companies headquartered in Austria as of September 2026 and tracks 767 professional contacts across them, including 323 with verified work emails and 19 with mobile numbers. Wien is the largest hub.

This list covers solar 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 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 6, 2026 86% judged on-target in blind review
142Companies
767Contacts tracked
323Verified emails
19Mobile numbers
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The 25 largest solar software development companies based in Austria

Ranked by team size
Top 25 of 142 solar software development companies based in Austria, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to solar software development 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
1Partial evidenceVienna, AustriaHQ checked Sep 6, 202651-20058 contacts →

“European solar experts who built the world's first floating solar platform at sea, SolarSea®, in 2014.”

Source: company website · checked Sep 6, 2026
2Partial evidenceMüllendorf, AustriaHQ checked Sep 6, 202651-20044 contacts →

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

Source: company website · checked Sep 6, 2026
3Partial evidenceVienna, AustriaHQ checked Sep 6, 202651-20044 contacts →

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

Source: company website · checked Sep 6, 2026
4Partial evidencePinsdorf, AustriaHQ checked Sep 6, 202651-20036 contacts →

“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 6, 2026
5Indirect evidenceNeuzeug, AustriaHQ checked Sep 6, 202651-20026 contacts →

“We make more out of photovoltaics than just electricity.”

Source: company website · checked Sep 6, 2026
6Partial evidenceSankt Veit An Der Glan, AustriaHQ checked Sep 6, 2026201-50024 contacts →

“As a leading specialist in solar energy since 1993, based in St.”

Source: company website · checked Sep 6, 2026
7Indirect evidenceTheresienfeld, AustriaHQ checked Sep 6, 202651-20020 contacts →

“Projektentwicklung, Beratung, Planung, Umsetzung von PV-Projekten für Gewerbe und Industrie”

Source: company website · checked Sep 6, 2026
8Partial evidenceVienna, AustriaHQ checked Sep 6, 202611-5019 contacts →

“hei is a Vienna-based technology company developing innovative solar lighting solutions for public spaces, landscapes, urban infrastructure, and smart city applications.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceWiener Neustadt, AustriaHQ checked Sep 6, 202651-20018 contacts →

“We take photovoltaics to new horizons.”

Source: company website · checked Sep 6, 2026
10Partial evidenceVienna, AustriaHQ checked Sep 6, 202611-5015 contacts →

“We are a professional full-service implementation partner specializing in the planning, project development, construction and operation of large-scale photovoltaic systems for…”

Source: company website · checked Sep 6, 2026
11Partial evidenceWels, AustriaHQ checked Sep 6, 2026501-1,00013 contacts →

“Impressum: Krannich Solar GmbH Ligusterstraße 4 A-4600 Wels Tel:+43 (0)7242 932391-10 Fax:+43 (0)7242 932391-19 E-Mail info[at]at.krannich-solar.com Website Landesgericht Wels…”

Source: company website · checked Sep 6, 2026
12Indirect evidenceIrdning-donnersbachtal, AustriaHQ checked Sep 6, 202651-20012 contacts →

“Überzeugt von dem enormen Potential der Sonne, ist es unser Antrieb, dieses für jeden einfach und zuverlässig nutzbar zu machen.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceWels, AustriaHQ checked Sep 6, 20261-1011 contacts →

“PWE System GmbH is a company based out of Franz-zola-straße 5, Wels, Oberösterreich, Austria.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceSpittal An Der Drau, AustriaHQ checked Sep 6, 2026201-50011 contacts →

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

Source: company website · checked Sep 6, 2026
15Indirect evidenceOstermiething, AustriaHQ checked Sep 6, 202611-5011 contacts →

“Photovolatik-Lösungen für Industrie, Gewerbe und Privat.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceEben Im Pongau, AustriaHQ checked Sep 6, 202651-20010 contacts →

“Als Full-Service-Photovoltaikanbieter mit integriertem Energiemanagement sind wir stolz darauf, unseren Kunden maßgeschneiderte PV-Lösungen anzubieten, die exakt auf ihre…”

Source: company website · checked Sep 6, 2026
17Partial evidencePerg, AustriaHQ checked Sep 6, 202611-509 contacts →

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

Source: company website · checked Sep 6, 2026
18Indirect evidenceSatteins, AustriaHQ checked Sep 6, 202611-508 contacts →

“Wir sind seit 1992 im Dienst der Sonne tätig.”

Source: company website · checked Sep 6, 2026
19Partial evidenceGraz, AustriaHQ checked Sep 6, 20261-107 contacts →

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

Source: company website · checked Sep 6, 2026
20Partial evidenceLinz, AustriaHQ checked Sep 6, 202611-507 contacts →

“Photovoltaik Contracting | Solar-Carports | Energiegemeinschaften”

Source: company website · checked Sep 6, 2026
21Indirect evidenceGraz, AustriaHQ checked Sep 6, 202611-506 contacts →

“Die Secundo Photovoltaik GmbH setzt für Ihr Industrie und Gewerbeunternehmen Photovoltaikanlagen mit Komplettlösungen um.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceEngerwitzdorf, AustriaHQ checked Sep 6, 20261-106 contacts →

“Energy+- your partner for renewable energies.”

Source: company website · checked Sep 6, 2026
23Indirect evidenceWeißkirchen, AustriaHQ checked Sep 6, 202611-506 contacts →

“Ökosolar ist ein führender Anbieter im Bereich Photovoltaik mit einer klaren Mission: die breite Nutzung von erneuerbarer Sonnenenergie mithilfe von qualitativ hochwertigen…”

Source: company website · checked Sep 6, 2026
24Partial evidenceHolzhausen, AustriaHQ checked Sep 6, 202611-505 contacts →

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

Source: company website · checked Sep 6, 2026
25Indirect evidenceBaden, AustriaHQ checked Sep 6, 20261-105 contacts →

“Nikko Engineering ist ein Ingenieurbüro für Elektrotechnik und ausschließlich im Bereich Photovoltaik tätig.”

Source: company website · checked Sep 6, 2026

Showing 25 of 142 solar software development companies based in Austria

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Solar software development companies based in Austria at a glance

As of Sep 6, 2026
42.1%Verified-email coverage
2.5%Mobile-number coverage
5.4Average contacts per company
1-10Median size (employees)
6.3%Largest-city concentration · Wien
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
78
11-50
41
51-200
18
201-500
2
501-1,000
1
1,001-5,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 solar software development 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 “solar software development 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 solar software development 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 solar 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 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, 323 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 6, 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 solar software development 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 solar software development companies are there based in Austria?

RevenueBase identified 142 solar 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?

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

Which city has the most solar software development companies?

Wien leads with 9 headquartered companies, followed by Vienna (8) and Graz (4).

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 323 verified decision-maker contacts tracked across these 142 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 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 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.