Company lists · Data refreshed September 2026

Top 12 Grid connection contractors based in Austria

RevenueBase identified 35 grid connection contractors headquartered in Austria as of September 2026 and tracks 357 professional contacts across them, including 172 with verified work emails. Graz is the largest hub.

This list covers grid connection contractors 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
35Companies
357Contacts tracked
172Verified emails
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The 12 largest grid connection contractors based in Austria

Ranked by team size
Top 12 of 35 grid connection contractors 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 grid connection contractors: 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 evidenceWolkersdorf, AustriaHQ checked Sep 16, 2026201-500153 contacts →

Indirect evidence

“WIR, die SPL TELE Gruppe, sind ein Gesamtanbieter für Telekom Infrastruktur.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceSt. Pölten, AustriaHQ checked Sep 16, 2026501-1,00080 contacts →

Indirect evidence

“Wer wir sind Als großes österreichisches Elektrotechnikunternehmen blickt Klenk & Meder auf eine über 50-jährige erfolgreiche Unternehmensgeschichte zurück.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceVienna, AustriaHQ checked Sep 16, 2026201-50047 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 16, 2026
4Indirect 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
5Indirect evidenceLeonding, AustriaHQ checked Sep 16, 202651-2007 contacts →

Indirect evidence

“Die GLS Enerige GmbH wurde 2012, in Perg, gegründet.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceGraz, AustriaHQ checked Sep 16, 202651-2006 contacts →

Indirect evidence

“Bei uns fließt gute Energie seit 1903.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect 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
8Indirect 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
9Indirect evidenceHüttau, AustriaHQ checked Sep 16, 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 16, 2026
10Indirect evidenceBad Leonfelden, AustriaHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceOberschützen, AustriaHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceKalsdorf Bei Graz, AustriaHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

“Elektro Reichhardt is a electric installation company based in Kalsdorf bei Graz”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 12 of 35 grid connection contractors based in Austria

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Grid connection contractors based in Austria at a glance

As of Sep 16, 2026
48.2%Verified-email coverage
10.2Average contacts per company
1-10Median size (employees)
5.7%Largest-city concentration · Graz
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
8
51-200
3
201-500
3
501-1,000
1

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 35 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 connection contractors, 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 connection contractors”. 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 connection contractors), 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 connection contractors, 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, 172 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 grid connection contractors, 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 connection contractors are there based in Austria?

RevenueBase identified 35 grid connection contractors 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?

SPL Tele, headquartered in Wolkersdorf, tops this list with the largest team on record.

Which city has the most grid connection contractors?

Graz leads with 2 headquartered companies, followed by Villach (2) and Amstetten (1).

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 172 verified decision-maker contacts tracked across these 35 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.