Company lists · Data refreshed September 2026

Top 25 Grid integration system designers based in Austria

Name: Grid integration system designers based in Austria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 107 companies tracked

RevenueBase identified 107 grid integration system designers headquartered in Austria as of September 2026 and tracks 550 professional contacts across them, including 232 with verified work emails. Graz is the largest hub.

This list covers grid integration system designers 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 19, 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 19, 2026 86% judged on-target in blind review

107Companies

550Contacts tracked

232Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest grid integration system designers based in Austria

Ranked by team size

Top 25 of 107 grid integration system designers based in Austria, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to grid integration system designers: 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	LSG Group Gmbh	Indirect evidence	Vienna, AustriaHQ checked Sep 19, 2026	201-500	47 contacts →
	Indirect evidence “LSG GROUP based in Austria, was originally founded as Leopold Jordan GmbH in Vienna in 1997, renamed 2010 to LJG Building Solutions GmbH and finally 2012 restructured to the LSG…” Source: RevenueBase Database · checked Sep 19, 2026
2	Energy3000 Solar Gmbh	Indirect evidence	Müllendorf, AustriaHQ checked Sep 19, 2026	51-200	44 contacts →
	Indirect evidence “Nomen est omen – solar konzentriert sich auf nachhaltige Energiesysteme und -lösungen für das dritte Jahrtausend.” Source: RevenueBase Database · checked Sep 19, 2026
3	Heizma	Indirect evidence	Vienna, AustriaHQ checked Sep 19, 2026	51-200	39 contacts →
	Indirect 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 19, 2026
4	Solid Solar Energy Systems Gmbh	Partial evidence	Graz, AustriaHQ checked Sep 19, 2026	11-50	27 contacts →
	Partial evidence “SOLID brings together extraordinary knowledge, experience in market application and R&D in areas of planning and operation of large-scale solar thermal energy systems and solar…” Source: RevenueBase Database · checked Sep 19, 2026
5	Sonnenkraft Gmbh	Indirect evidence	Sankt Veit An Der Glan, AustriaHQ checked Sep 19, 2026	201-500	24 contacts →
	Indirect evidence “As a leading specialist in solar energy since 1993, based in St.” Source: RevenueBase Database · checked Sep 19, 2026
6	E7 Energy Innovation & Engineering	Indirect evidence	Vienna, AustriaHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “e7 is a private research and consulting company specialized in the energy efficiency and the renewable energy sector.” Source: RevenueBase Database · checked Sep 19, 2026
7	Selina Photovoltaic Gmbh	Partial evidence	Vienna, AustriaHQ checked Sep 19, 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 19, 2026
8	One2zero	Indirect evidence	Salzburg, AustriaHQ checked Sep 19, 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 19, 2026
9	TBH Ingenieur Gmbh	Indirect evidence	Graz, AustriaHQ checked Sep 19, 2026	1,001-5,000	12 contacts →
	Indirect evidence “Die TBH Ingenieur GmbH ist IHR kompetenter Partner für ganzheitliche Lösungen, die Ihr Gebäude und energietechnischen Anlagen energieeffizienter und nachhaltiger machen.” Source: RevenueBase Database · checked Sep 19, 2026
10	PWE System Gmbh	Partial evidence	Wels, AustriaHQ checked Sep 19, 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 19, 2026
11	Synecotec	Indirect evidence	Absam, AustriaHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect 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 19, 2026
12	Conversio Energie Gmbh	Indirect evidence	Spittal An Der Drau, AustriaHQ checked Sep 19, 2026	201-500	11 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 19, 2026
13	Dafi Gmbh	Indirect evidence	Eben Im Pongau, AustriaHQ checked Sep 19, 2026	51-200	10 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 19, 2026
14	I2m Gmbh	Indirect evidence	Graz, AustriaHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “i2m Unternehmensentwicklung GmbH is a research-driven technology development and innovation consultancy founded in Graz, Austria in 2014.” Source: RevenueBase Database · checked Sep 19, 2026
15	Energiefreund	Indirect evidence	Landeck, AustriaHQ checked Sep 19, 2026	51-200	7 contacts →
	Indirect evidence “Innovativ und nachhaltig: Wir vereinen intelligente Energiesysteme unter Ihrem Dach.” Source: RevenueBase Database · checked Sep 19, 2026
16	E-Werk Franz	Indirect evidence	Graz, AustriaHQ checked Sep 19, 2026	51-200	6 contacts →
	Indirect evidence “Bei uns fließt gute Energie seit 1903.” Source: RevenueBase Database · checked Sep 19, 2026
17	Energy Solutions Gmbh	Indirect evidence	Engerwitzdorf, AustriaHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Energy+- your partner for renewable energies.” Source: RevenueBase Database · checked Sep 19, 2026
18	Ökosolar PV	Indirect evidence	Weißkirchen, AustriaHQ checked Sep 19, 2026	11-50	6 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 19, 2026
19	Nikko Engineering Gmbh	Indirect evidence	Baden, AustriaHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “Nikko Engineering ist ein Ingenieurbüro für Elektrotechnik und ausschließlich im Bereich Photovoltaik tätig.” Source: RevenueBase Database · checked Sep 19, 2026
20	FF Photovoltaik Gmbh	Indirect evidence	Oberwart, AustriaHQ checked Sep 19, 2026	51-200	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
21	E-Lion Gmbh	Indirect evidence	Söding, AustriaHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Bei e-lion sind wir Ihr Fachbetrieb und Ingenieurbüro für Elektrotechnik in der Steiermark.” Source: RevenueBase Database · checked Sep 19, 2026
22	Green Electrics Licht & Energietechnik Gmbh	Indirect evidence	Gleisdorf, AustriaHQ checked Sep 19, 2026	51-200	5 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 19, 2026
23	Solah Gmbh	Indirect evidence	Mattersburg, AustriaHQ checked Sep 19, 2026	11-50	5 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 19, 2026
24	Greesma Energy Services Gmbh	Indirect evidence	Sankt Margarethen An Der Raab, AustriaHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “Greesma ist Ihr professioneller Partner für nachhaltige, intelligente und wirtschaftliche Energielösungen.” Source: RevenueBase Database · checked Sep 19, 2026
25	Ehoch2	Indirect evidence	Mötz, AustriaHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Die beste Wahl für Großprojekte in nachhaltigen Energien.” Source: RevenueBase Database · checked Sep 19, 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: grid integration system designers. 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 grid integration system designers.
Partial evidence: Its own public description names part of grid integration system designers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid integration system designers. 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 107 grid integration system designers based in Austria

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 232 reachable decision-makers.

Free signup · no credit card

View the full list →

Grid integration system designers based in Austria at a glance

As of Sep 19, 2026

42.2%Verified-email coverage

5.1Average contacts per company

1-10Median size (employees)

5.6%Largest-city concentration · Graz

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 107 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 grid integration system designers, 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 “grid integration system designers”. 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 grid integration system designers), 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 grid integration system designers, 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, 232 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 19, 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 grid integration system designers, 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 grid integration system designers are there based in Austria?

RevenueBase identified 107 grid integration system designers 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?

LSG Group Gmbh, headquartered in Vienna, tops this list with the largest team on record.

Which city has the most grid integration system designers?

Graz leads with 6 headquartered companies, followed by Wien (6) and Vienna (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 232 verified decision-maker contacts tracked across these 107 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 107 grid integration system designers based in Austria. Start with a free account, no credit card.

Download this list →

Related lists

Grid integration system designers by geography

Browse the directory

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.