Company lists · Data refreshed September 2026

Top 25 Renewable energy system suppliers based in Austria

Name: Renewable energy system suppliers based in Austria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 227 companies tracked

RevenueBase identified 227 renewable energy system suppliers headquartered in Austria as of September 2026 and tracks 1,801 professional contacts across them, including 828 with verified work emails. Wien is the largest hub.

This list covers renewable energy system suppliers 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 17, 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 17, 2026 86% judged on-target in blind review

227Companies

1,801Contacts tracked

828Verified emails

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The 25 largest renewable energy system suppliers based in Austria

Ranked by team size

Top 25 of 227 renewable energy system suppliers based in Austria, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy system suppliers: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ENERY	Strong evidence	Vienna, AustriaHQ checked Sep 17, 2026	201-500	219 contacts →
	Strong evidence “Enery is an operations-led renewable power infrastructure company which provides competitive and reliable green electricity to its customers.” Source: RevenueBase Database · checked Sep 17, 2026
2	RP Global	Strong evidence	Vienne, AustriaHQ checked Sep 17, 2026	201-500	158 contacts →
	Strong evidence “RP Global is a large-scale developer with 40+ years of experience in the renewable energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
3	NEOOM	Strong evidence	Freistadt, AustriaHQ checked Sep 17, 2026	201-500	95 contacts →
	Strong evidence “Humanity is finally saying goodbye to energy production through oil, gas, coal or nuclear fusion towards renewable energy through wind, water and sun.” Source: RevenueBase Database · checked Sep 17, 2026
4	WEB Windenergie AG	Partial evidence	Pfaffenschlag Bei Waidhofen, AustriaHQ checked Sep 17, 2026	201-500	91 contacts →
	Partial evidence “WEB Windenergie AG is a renewables & environment company based in Pfaffenschlag near Waidhofen, Lower Austria.” Source: RevenueBase Database · checked Sep 17, 2026
5	Oekostrom AG	Partial evidence	Vienna, AustriaHQ checked Sep 17, 2026	51-200	63 contacts →
	Partial evidence “Die oekostrom AG ist Produzent und Anbieter von Strom aus erneuerbaren Energiequellen und setzt sich aktiv für eine ökologische, zukunftsfähige Energieversorgung bei Wärme und…” Source: RevenueBase Database · checked Sep 17, 2026
6	Swimsol Gmbh	Indirect evidence	Vienna, AustriaHQ checked Sep 17, 2026	51-200	58 contacts →
	Indirect evidence “European solar experts who built the world's first floating solar platform at sea, SolarSea®, in 2014.” Source: RevenueBase Database · checked Sep 17, 2026
7	Energy3000 Solar Gmbh	Partial evidence	Müllendorf, AustriaHQ checked Sep 17, 2026	51-200	44 contacts →
	Partial evidence “Nomen est omen – solar konzentriert sich auf nachhaltige Energiesysteme und -lösungen für das dritte Jahrtausend.” Source: RevenueBase Database · checked Sep 17, 2026
8	Heizma	Strong evidence	Vienna, AustriaHQ checked Sep 17, 2026	51-200	39 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 17, 2026
9	M-Tec Energy For Future	Indirect evidence	Pinsdorf, AustriaHQ checked Sep 17, 2026	51-200	36 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 17, 2026
10	suntastic.solar	Partial evidence	Bisamberg, AustriaHQ checked Sep 17, 2026	51-200	32 contacts →
	Partial evidence “Als führendes österreichisches Unternehmen für erneuerbare Energien bieten wir Elektrikern, Installateuren und Dachdeckern sowohl hochwertige Photovoltaik-Produkte als auch eine…” Source: RevenueBase Database · checked Sep 17, 2026
11	Electrify	Indirect evidence	Wolkersdorf Im Weinviertel, AustriaHQ checked Sep 17, 2026	51-200	29 contacts →
	Indirect evidence “Wir, das Team der electrify, engagieren uns für innovative Mobilitätskonzepte, die den Umweltschutz auf die Straße bringen, die Sonnenenergie zu den Menschen und den…” Source: RevenueBase Database · checked Sep 17, 2026
12	Beyond Carbon Energy	Partial evidence	Vienna, AustriaHQ checked Sep 17, 2026	11-50	24 contacts →
	Partial evidence “beyond carbon energy konzipiert, plant, realisiert, finanziert und betreibt weitestgehend emissionsfreie Wärme- und Kälteversorgung für Bestands- und Neubauimmobilien.” Source: RevenueBase Database · checked Sep 17, 2026
13	Sonnenkraft Gmbh	Partial evidence	Sankt Veit An Der Glan, AustriaHQ checked Sep 17, 2026	201-500	24 contacts →
	Partial evidence “As a leading specialist in solar energy since 1993, based in St.” Source: RevenueBase Database · checked Sep 17, 2026
14	Energie Ried Gesellschaft M.B.H	Indirect evidence	Ried Im Innkreis, AustriaHQ checked Sep 17, 2026	51-200	21 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
15	10hoch4 Energiesysteme	Indirect evidence	Theresienfeld, AustriaHQ checked Sep 17, 2026	51-200	20 contacts →
	Indirect evidence “Projektentwicklung, Beratung, Planung, Umsetzung von PV-Projekten für Gewerbe und Industrie” Source: RevenueBase Database · checked Sep 17, 2026
16	PVI ALT	Indirect evidence	Klagenfurt, AustriaHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “UNSERE KERNKOMPETENZEN: • Technisch optimierte Photovoltaik Anlagenplanung • Anlagenplanung für höchste Erträge (z.B.” Source: RevenueBase Database · checked Sep 17, 2026
17	Selina Photovoltaic Gmbh	Partial evidence	Vienna, AustriaHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial 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 17, 2026
18	E-Werke Frastanz	Indirect evidence	Frastanz, AustriaHQ checked Sep 17, 2026	51-200	15 contacts →
	Indirect evidence “Seit über 100 Jahren sind wir – die E-Werke Frastanz – mit über 80 Mitarbeitern in den unterschiedlichsten Bereichen für unsere Kunden im Einsatz.” Source: RevenueBase Database · checked Sep 17, 2026
19	Krannich Solar Austria	Indirect evidence	Wels, AustriaHQ checked Sep 17, 2026	501-1,000	13 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 17, 2026
20	One2zero	Indirect evidence	Salzburg, AustriaHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “Vor dem Hintergrund aktueller klimatischer Prozesse, neuer gesetzlicher Rahmenbedingungen und hoher Kosten wird Dekarbonisierung zu einem der wichtigsten Themen in der…” Source: RevenueBase Database · checked Sep 17, 2026
21	Eco-Tec.At Photovoltaics Gmbh	Indirect evidence	Irdning-donnersbachtal, AustriaHQ checked Sep 17, 2026	51-200	12 contacts →
	Indirect evidence “Überzeugt von dem enormen Potential der Sonne, ist es unser Antrieb, dieses für jeden einfach und zuverlässig nutzbar zu machen.” Source: RevenueBase Database · checked Sep 17, 2026
22	Ourpower Energiegenossenschaft SCE MBH	Partial evidence	Vienna, AustriaHQ checked Sep 17, 2026	11-50	12 contacts →
	Partial evidence “Unsere Vision ist eine Welt, in der Menschen verantwortungsvoll mit Energie umgehen und Strom zu 100% direkt aus regionalen erneuerbaren Energiequellen beziehen.” Source: RevenueBase Database · checked Sep 17, 2026
23	PWE System Gmbh	Partial evidence	Wels, AustriaHQ checked Sep 17, 2026	1-10	11 contacts →
	Partial evidence “PWE System GmbH is a company based out of Franz-zola-straße 5, Wels, Oberösterreich, Austria.” Source: RevenueBase Database · checked Sep 17, 2026
24	Synecotec	Partial evidence	Absam, AustriaHQ checked Sep 17, 2026	11-50	11 contacts →
	Partial evidence “We are an Energy Service Company (ESCO) from Tyrol that has set itself the task of realising clean and sustainable solutions for the energy use of companies and private households.” Source: RevenueBase Database · checked Sep 17, 2026
25	Conversio Energie Gmbh	Partial evidence	Spittal An Der Drau, AustriaHQ checked Sep 17, 2026	201-500	11 contacts →
	Partial evidence “Conversio Energie GmbH is a chemicals company based out of Koschatstraße 24, Spittal an der Drau, Austria.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: renewable energy system suppliers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names renewable energy system suppliers.
Partial evidence: Its own public description names part of renewable energy system suppliers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy system suppliers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 227 renewable energy system suppliers based in Austria

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Renewable energy system suppliers based in Austria at a glance

As of Sep 17, 2026

46.0%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

8.8%Largest-city concentration · Wien

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

121

11-50

51-200

201-500

501-1,000

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 227 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 energy system suppliers, 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 energy system suppliers”. 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 energy system suppliers), 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 energy system suppliers, 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, 828 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 17, 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 energy system suppliers, 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 energy system suppliers are there based in Austria?

RevenueBase identified 227 renewable energy system suppliers 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?

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

Which city has the most renewable energy system suppliers?

Wien leads with 20 headquartered companies, followed by Vienna (9) and Graz (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 828 verified decision-maker contacts tracked across these 227 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 17, 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.