Company lists · Data refreshed September 2026

Top 25 Photovoltaic energy storage companies based in Austria

Name: Photovoltaic energy storage companies based in Austria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 139 companies tracked

RevenueBase identified 139 photovoltaic energy storage companies headquartered in Austria as of September 2026 and tracks 2,150 professional contacts across them, including 507 with verified work emails. Vienna is the largest hub.

This list covers photovoltaic energy storage 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 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

139Companies

2,150Contacts tracked

507Verified emails

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The 25 largest photovoltaic energy storage companies based in Austria

Ranked by team size

Top 25 of 139 photovoltaic energy storage companies 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 photovoltaic energy storage 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Fronius International	Partial evidence	Wels, AustriaHQ checked Sep 17, 2026	5,001-10,000	336 contacts →
	Partial evidence “We are Fronius, an Austrian company specializing in welding technology, photovoltaics, and battery charging technology.” Source: RevenueBase Database · checked Sep 17, 2026
2	NEOOM	Partial evidence	Freistadt, AustriaHQ checked Sep 17, 2026	201-500	95 contacts →
	Partial 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
3	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
4	Cellcube Energy Storage	Strong evidence	Wiener Neudorf, AustriaHQ checked Sep 17, 2026	51-200	48 contacts →
	Strong evidence “CellCube Energy Storage is one of the world's first and largest researcher, developer, manufacturer and distributor of vanadium flow batteries.” Source: RevenueBase Database · checked Sep 17, 2026
5	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
6	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
7	PVI ALT	Partial evidence	Klagenfurt, AustriaHQ checked Sep 17, 2026	11-50	17 contacts →
	Partial evidence “UNSERE KERNKOMPETENZEN: • Technisch optimierte Photovoltaik Anlagenplanung • Anlagenplanung für höchste Erträge (z.B.” Source: RevenueBase Database · checked Sep 17, 2026
8	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
9	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
10	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
11	PWE System Gmbh	Indirect evidence	Wels, AustriaHQ checked Sep 17, 2026	1-10	11 contacts →
	Indirect evidence “PWE System GmbH is a company based out of Franz-zola-straße 5, Wels, Oberösterreich, Austria.” Source: RevenueBase Database · checked Sep 17, 2026
12	Exenberger Elektro-Technik	Strong evidence	Kitzbühel, AustriaHQ checked Sep 17, 2026	51-200	11 contacts →
	Strong evidence “Mit Innovation, Teamgeist und höchster Qualität sind wir der perfekte Partner für Elektroinstallationen, Photovoltaik-Anlagen & Energiespeicherlösungen, Sicherheitssysteme, IT &…” Source: RevenueBase Database · checked Sep 17, 2026
13	Ökovolt Solartechnik Gmbh	Indirect evidence	Ostermiething, AustriaHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “Photovolatik-Lösungen für Industrie, Gewerbe und Privat.” Source: RevenueBase Database · checked Sep 17, 2026
14	10hoch4 Photovoltaik Gmbh	Partial evidence	Mödling, AustriaHQ checked Sep 17, 2026	11-50	10 contacts →
	Partial evidence “10hoch4 Photovoltaik - Ihr Expertenteam für nachhaltige Photovoltaiklösungen!” Source: RevenueBase Database · checked Sep 17, 2026
15	Dafi Gmbh	Strong evidence	Eben Im Pongau, AustriaHQ checked Sep 17, 2026	51-200	10 contacts →
	Strong 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 17, 2026
16	Kärnten Solar	Partial evidence	Klagenfurt Am Wörthersee, AustriaHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “Kärnten Solar ist ein Komplettanbieter im Bereich Photovoltaik, Notstrom, Batteriespeicher, Klein- & Großanlagen, Elektroladesäulen, Bürgerkraftwerke & PV-Contracting.” Source: RevenueBase Database · checked Sep 17, 2026
17	Krone Sonne	Indirect evidence	Mattersburg, AustriaHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence “Hol dir die Sonne aufs Dach!” Source: RevenueBase Database · checked Sep 17, 2026
18	Link3 Gmbh	Partial evidence	Puch Bei Hallein, AustriaHQ checked Sep 17, 2026	11-50	8 contacts →
	Partial evidence “LINK3 entwickelt und produziert innovative Schichtenspeicher für eine effiziente und zuverlässige Energieversorgung.” Source: RevenueBase Database · checked Sep 17, 2026
19	Piadeno Green Energy Management Gmbh	Indirect evidence	Klagenfurt, AustriaHQ checked Sep 17, 2026	1-10	8 contacts →
	Indirect evidence “Um mögliche Blackouts zu verhindern, müssen neue und verbesserte Anlagen für StromerzeugerInnen und StromverbraucherInnen in das österreichische (und auch europäische) Netz…” Source: RevenueBase Database · checked Sep 17, 2026
20	AEP H2 Gmbh	Strong evidence	Linz, AustriaHQ checked Sep 17, 2026	11-50	7 contacts →
	Strong evidence “Photovoltaik Contracting \| Solar-Carports \| Energiegemeinschaften” Source: RevenueBase Database · checked Sep 17, 2026
21	PV Kraftwerk Gmbh	Partial evidence	Markt Allhau, AustriaHQ checked Sep 17, 2026	51-200	7 contacts →
	Partial evidence “Wir zählen zu den führenden PV-Unternehmen in Österreich und realisieren Photovoltaik-Anlagen jeglicher Größenordnung.” Source: RevenueBase Database · checked Sep 17, 2026
22	Secundo Photovoltaik Gmbh	Partial evidence	Graz, AustriaHQ checked Sep 17, 2026	11-50	6 contacts →
	Partial evidence “Die Secundo Photovoltaik GmbH setzt für Ihr Industrie und Gewerbeunternehmen Photovoltaikanlagen mit Komplettlösungen um.” Source: RevenueBase Database · checked Sep 17, 2026
23	Energy Solutions Gmbh	Partial evidence	Engerwitzdorf, AustriaHQ checked Sep 17, 2026	1-10	6 contacts →
	Partial evidence “Energy+- your partner for renewable energies.” Source: RevenueBase Database · checked Sep 17, 2026
24	Ökoteam Solar Gmbh	Indirect evidence	Schrems, AustriaHQ checked Sep 17, 2026	11-50	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	Ökosolar PV	Partial evidence	Weißkirchen, AustriaHQ checked Sep 17, 2026	11-50	6 contacts →
	Partial 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 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: photovoltaic energy storage companies. 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 photovoltaic energy storage companies.
Partial evidence: Its own public description names part of photovoltaic energy storage companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name photovoltaic energy storage companies. 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 139 photovoltaic energy storage companies based in Austria

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Photovoltaic energy storage companies based in Austria at a glance

As of Sep 17, 2026

23.6%Verified-email coverage

15.5Average contacts per company

1-10Median size (employees)

5.0%Largest-city concentration · Vienna

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 139 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 photovoltaic energy storage 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 “photovoltaic energy storage 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 photovoltaic energy storage 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 photovoltaic energy storage 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, 507 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 photovoltaic energy storage 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 photovoltaic energy storage companies are there based in Austria?

RevenueBase identified 139 photovoltaic energy storage 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?

Fronius International, headquartered in Wels, tops this list with the largest team on record.

Which city has the most photovoltaic energy storage companies?

Vienna leads with 7 headquartered companies, followed by Wels (7) and Wien (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 507 verified decision-maker contacts tracked across these 139 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.