Company lists · Data refreshed September 2026

Top 25 Commercial solar design firms based in Austria

RevenueBase identified 88 commercial solar design firms headquartered in Austria as of September 2026 and tracks 355 professional contacts across them, including 116 with verified work emails. Linz is the largest hub.

This list covers commercial solar design firms 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
88Companies
355Contacts tracked
116Verified emails
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The 25 largest commercial solar design firms based in Austria

Ranked by team size
Top 25 of 88 commercial solar design firms based in Austria, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to commercial solar design firms: 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 evidenceSankt Veit An Der Glan, AustriaHQ checked Sep 16, 2026201-50024 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceTheresienfeld, AustriaHQ checked Sep 16, 202651-20020 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceKlagenfurt, AustriaHQ checked Sep 16, 202611-5017 contacts →

Indirect evidence

“UNSERE KERNKOMPETENZEN: • Technisch optimierte Photovoltaik Anlagenplanung • Anlagenplanung für höchste Erträge (z.B.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceVienna, AustriaHQ checked Sep 16, 202611-5015 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceWels, AustriaHQ checked Sep 16, 20261-1011 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceSpittal An Der Drau, AustriaHQ checked Sep 16, 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 16, 2026
7Indirect evidenceVienna And Guntramsdorf, AustriaHQ checked Sep 16, 202611-5011 contacts →

Indirect evidence

“Lights of Vienna, based in Guntramsdorf near Vienna, is an Austrian lighting manufacturer with over 30 years of experience.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceEben Im Pongau, AustriaHQ checked Sep 16, 202651-20010 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceSatteins, AustriaHQ checked Sep 16, 202611-508 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceFeldkirchen In Kärnten, AustriaHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

“Wir sind ein konzessioniertes unabhängiges Ingenieurbüro mit einem qualifizierten Team erfahrener Lichtplaner.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceGraz, AustriaHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceEngerwitzdorf, AustriaHQ checked Sep 16, 20261-106 contacts →

Indirect evidence

“Energy+- your partner for renewable energies.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceKlosterneuburg, AustriaHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

“Transforming the world to net zero requires clean energy from local production.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceWeißkirchen, AustriaHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceBaden, AustriaHQ checked Sep 16, 20261-105 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceGleisdorf, AustriaHQ checked Sep 16, 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 16, 2026
17Indirect evidenceMattersburg, AustriaHQ checked Sep 16, 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 16, 2026
18Indirect evidenceSankt Margarethen An Der Raab, AustriaHQ checked Sep 16, 20261-105 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceMötz, AustriaHQ checked Sep 16, 20261-104 contacts →

Indirect evidence

“Die beste Wahl für Großprojekte in nachhaltigen Energien.”

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidenceAmstetten, AustriaHQ checked Sep 16, 202611-504 contacts →

Partial evidence

“ertex solar is a flexible team of specialists with 70 years of experience in glass construction.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidencePaldau, AustriaHQ checked Sep 16, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceLinz, AustriaHQ checked Sep 16, 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 16, 2026
23Indirect evidenceAmstetten, AustriaHQ checked Sep 16, 20261-103 contacts →

Indirect evidence

“Haider Energies ist Ihr kompetenter Ansprechpartner im Bereich Photovoltaik Anlagen.”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceWeißkirchen An Der Traun, AustriaHQ checked Sep 16, 202611-502 contacts →

Partial evidence

“Pro Solar ist spezialisiert auf die Installation von Photovoltaikanlagen für Privat- und Geschäftskunden.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceWaldkirchen Am Wesen, AustriaHQ checked Sep 16, 202651-2001 contacts →

Indirect evidence

“Vertrauen Sie auf unsere Fachkenntnisse und entdecken Sie die Vorteile der Sonnenenergie.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 88 commercial solar design firms based in Austria

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Commercial solar design firms based in Austria at a glance

As of Sep 16, 2026
32.7%Verified-email coverage
4.0Average contacts per company
1-10Median size (employees)
5.7%Largest-city concentration · Linz
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
48
11-50
31
51-200
5
201-500
2

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 88 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 commercial solar design firms, 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 “commercial solar design firms”. 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 commercial solar design firms), 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 commercial solar design firms, 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, 116 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 commercial solar design firms, 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 commercial solar design firms are there based in Austria?

RevenueBase identified 88 commercial solar design firms 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?

Sonnenkraft Gmbh, headquartered in Sankt Veit An Der Glan, tops this list with the largest team on record.

Which city has the most commercial solar design firms?

Linz leads with 5 headquartered companies, followed by Bad Voslau (3) and Sankt Veit An Der Glan (3).

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 116 verified decision-maker contacts tracked across these 88 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.

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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.