Company lists · Data refreshed September 2026

Top 20 Solar permitting and engineering firms based in Austria

RevenueBase identified 46 solar permitting and engineering firms headquartered in Austria as of September 2026 and tracks 158 professional contacts across them, including 44 with verified work emails. Linz is the largest hub.

This list covers solar permitting and engineering 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 18, 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 18, 2026 86% judged on-target in blind review
46Companies
158Contacts tracked
44Verified emails
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The 20 largest solar permitting and engineering firms based in Austria

Ranked by team size
Top 20 of 46 solar permitting and engineering firms based in Austria, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to solar permitting and engineering 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
1Indirect evidenceTheresienfeld, AustriaHQ checked Sep 18, 202651-20020 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
2Indirect evidenceEben Im Pongau, AustriaHQ checked Sep 18, 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 18, 2026
3Indirect evidenceSatteins, AustriaHQ checked Sep 18, 202611-508 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
4Indirect evidenceEngerwitzdorf, AustriaHQ checked Sep 18, 20261-106 contacts →

Indirect evidence

“Energy+- your partner for renewable energies.”

Source: RevenueBase Database · checked Sep 18, 2026
5Indirect evidenceWeißkirchen, AustriaHQ checked Sep 18, 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 18, 2026
6Partial evidenceBaden, AustriaHQ checked Sep 18, 20261-105 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
7Indirect evidenceMattersburg, AustriaHQ checked Sep 18, 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 18, 2026
8Indirect evidenceSankt Margarethen An Der Raab, AustriaHQ checked Sep 18, 20261-105 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
9Indirect evidencePaldau, AustriaHQ checked Sep 18, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 18, 2026
10Indirect evidenceAmstetten, AustriaHQ checked Sep 18, 20261-103 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
11Indirect evidenceWaldkirchen Am Wesen, AustriaHQ checked Sep 18, 202651-2001 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
12Indirect evidenceWeitra, AustriaHQ checked Sep 18, 20261-101 contacts →

Indirect evidence

“Beratung, Projektierung und Baubegleitung von Elektroanlagen Dimensionierung, Planung und Wirtschaftlichkeitsanalysen von Photovoltaikanlagen Beratung und Unterstützung bei…”

Source: RevenueBase Database · checked Sep 18, 2026
13Partial evidenceLinz, AustriaHQ checked Sep 18, 20261-101 contacts →

Partial evidence

“arconsol | architectural consulting on solar solutions support customers, architects, construction industry in terms of integrating photovoltaics (PV) into the building envelope”

Source: RevenueBase Database · checked Sep 18, 2026
14Indirect evidenceTillmitsch, AustriaHQ checked Sep 18, 20261-101 contacts →

Indirect evidence

“Die GEM Solutions GmbH wurde im Jahr 2021 gegründet und bietet sowohl Industrie- & Gewerbekunden als auch kommunalen und landwirtschaftlichen Betrieben und Gemeinden umfangreiche…”

Source: RevenueBase Database · checked Sep 18, 2026
15Indirect evidenceHüttau, AustriaHQ checked Sep 18, 20261-101 contacts →

Indirect evidence

“Haidtech – Ihr Partner für innovative Lösungen in den Bereichen Elektrotechnik und Photovoltaik im Salzburger Pongau.”

Source: RevenueBase Database · checked Sep 18, 2026
16Indirect evidenceVorchdorf, AustriaHQ checked Sep 18, 20261-101 contacts →

Indirect evidence

“Im Jahr 2018 haben wir auch noch die Elektrokonzession beantragt und erhalten, dadurch können wir unseren Kunden ein All In Paket anbieten.”

Source: RevenueBase Database · checked Sep 18, 2026
17Indirect evidenceRadkersburg, AustriaHQ checked Sep 18, 20261-101 contacts →

Indirect evidence

“enersetic - mit Erfahrung, WIssen aber vor allem mit Passion und aus voller Überzeugung gestalten wir die Energiezukunft mit.”

Source: RevenueBase Database · checked Sep 18, 2026
18Indirect evidenceFeistritz Ob Bleiburg, AustriaHQ checked Sep 18, 20261-101 contacts →

Indirect evidence

“Unsere Expertise im Bereich Photovoltaik ermöglicht es uns, optimale Anlagen zu entwickeln, die exakte auf Ihre Bedürfnisse zugeschnitten sind.”

Source: RevenueBase Database · checked Sep 18, 2026
19Partial evidenceWien, AustriaHQ checked Sep 18, 20261-101 contacts →

Partial evidence

“Consulting, planning of sustainable building technology in the field of heating, ventilation, air conditioning, sanitation, solar and renewable Energy, energy certificate…”

Source: RevenueBase Database · checked Sep 18, 2026
20Indirect evidenceLinz, AustriaHQ checked Sep 18, 20261-101 contacts →

Indirect evidence

“Wir von der Aurelis GmbH sind Ihr zuverlässiger Ansprechpartner für Dach- und Flächenverpachtung sowie für alle Themen rund um Photovoltaik.”

Source: RevenueBase Database · checked Sep 18, 2026

Showing 20 of 46 solar permitting and engineering firms based in Austria

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Solar permitting and engineering firms based in Austria at a glance

As of Sep 18, 2026
27.8%Verified-email coverage
3.4Average contacts per company
1-10Median size (employees)
6.5%Largest-city concentration · Linz
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
31
11-50
11
51-200
4

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 46 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 solar permitting and engineering 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 “solar permitting and engineering 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 solar permitting and engineering 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 solar permitting and engineering 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, 44 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 18, 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 permitting and engineering 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 solar permitting and engineering firms are there based in Austria?

RevenueBase identified 46 solar permitting and engineering 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?

10hoch4 Energiesysteme, headquartered in Theresienfeld, tops this list with the largest team on record.

Which city has the most solar permitting and engineering firms?

Linz leads with 3 headquartered companies, followed by Graz (2) and Vienna (2).

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 44 verified decision-maker contacts tracked across these 46 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 18, 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.