Company lists · Data refreshed September 2026
Top 25 Infrastructure companies based in Austria
RevenueBase identified 82 infrastructure companies headquartered in Austria as of September 2026 and tracks 6,129 professional contacts across them, including 2,678 with verified work emails. Wien is the largest hub.
This list covers infrastructure 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 15, 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.
The 25 largest infrastructure companies based in Austria
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,672 contacts → | ||||
Indirect evidence “Driving innovation for excellence – that’s what PORR stands for for more than 150 years.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,125 contacts → | ||||
Indirect evidence “Wir sind ein börsennotiertes Energie- und Umweltdienstleistungsunternehmen mit Sitz in Niederösterreich.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 3 | 459 contacts → | ||||
Indirect evidence “Strom, Gas, Fernwärme und Daten: Wir arbeiten an den Lebensadern der Stadt.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 4 | 372 contacts → | ||||
Indirect evidence “Ob im Verkehr, in Energiefragen oder in der Infrastruktur – die LINZ AG bietet im oberösterreichischen Zentralraum moderne und zuverlässige Dienstleistungen auf höchstem Niveau.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 5 | 301 contacts → | ||||
Indirect evidence “Die Wiener Stadtwerke-Gruppe hält die lebenswerteste Stadt der Welt am Laufen.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 6 | 228 contacts → | ||||
Strong evidence “As an Infra Banking Expert, Kommunalkredit finances essential infrastructure in Europe with a focus on energy & environment, communication & digitalization, transport, social…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 8 | 87 contacts → | ||||
Strong evidence “EuroTeleSites AG, a listed company on the Vienna Stock Exchange, is the leading provider of telecommunications infrastructure and solutions in the CEE region.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 9 | 77 contacts → | ||||
Indirect evidence “Progress starts with us.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 10 | 54 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 11 | 51 contacts → | ||||
Indirect evidence “Die TINETZ-Tiroler Netze GmbH ist eine 100%ige Tochtergesellschaft der TIWAG-Tiroler Wasserkraft AG (TIWAG) und hat ihren Hauptsitz in Thaur.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 12 | 44 contacts → | ||||
Indirect evidence “Die Jäger Bau GmbH ist ein führendes Unternehmen der Bauindustrie und seit 1922 erfolgreich national und international tätig.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 13 | 40 contacts → | ||||
Indirect evidence “Seit der Gründung 1876 hat sich Hilti & Jehle vom traditionellen Hoch- und Tiefbauer zum innovativen Gesamtanbieter mit internationaler Ausrichtung entwickelt.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 14 | 34 contacts → | ||||
Indirect evidence “Die Thomas Lorenz ZT GmbH ist ein in der Steiermark führendes Ziviltechniker-Unternehmen, das auch international tätig ist.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 15 | 22 contacts → | ||||
Indirect evidence “Als Stadtwerke Wörgl erfüllen wir nicht nur einen Versorungsauftrag für die Menschen in Wörgl und Umgebung.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 16 | 19 contacts → | ||||
Indirect evidence “Nägele Hoch- und Tiefbau GmbH is a construction company based out of Industriestraße 18, Sulz, Vorarlberg, Austria.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 17 | 19 contacts → | ||||
Indirect evidence “Die GLS Bau und Montage GmbH mit Sitz in Österreich ist Komplettanbieter in den Geschäftsbereichen Hochbau, Tiefbau, Pipelinebau, Bahnbau, sowie im Stahl- und Rohrbau samt…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 18 | 15 contacts → | ||||
Indirect evidence “Unsere Unternehmen sind seit mehr als 40 Jahren als nationale und internationale Dienstleister im Bauwesen erfolgreich tätig.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 19 | 11 contacts → | ||||
Indirect evidence “We are one of Austria’s first corporate start-ups and combine flexibility and speed of a young start-up with the stability of established enterprises.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Indirect evidence “IBBS ZT-GmbH konstruktiver Ingenieurbau – Verkehrsplanung – Infrastrukturentwicklung // Prüfingenieur, Planungs- und Baukoordination” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 contacts → | ||||
Strong evidence “ecoexperts designs, develops and implements master control systems for critical infrastructure and utilities, such as tunnels, energy farms, ensuring that they are constantly…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 22 | 9 contacts → | ||||
Indirect evidence “Unser Team blickt auf über 100 Jahre Berufserfahrung zurück.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 contacts → | ||||
Indirect evidence “Unser Büro, die KOB ZT G.m.b.H, bietet Dienstleistungen im gesamten Infrastruktursektor an.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 contacts → | ||||
Indirect evidence “Wir von INGENIUM bieten Ihnen die fachliche Kompetenz für die Verwirklichung Ihrer Bauvorhaben, dabei liegt der Fokus auf Infrastruktur.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 contacts → | ||||
Indirect evidence “Wir bieten ein breites Spektrum an erfolgreichen Projektabwicklungen im Bauwesen an: Unsere Kompetenzen liegen vorwiegend im Ingenieurtiefbau sowie Verkehrswege- bzw.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
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: infrastructure 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 infrastructure companies.
- Partial evidence
- Its own public description names part of infrastructure companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name infrastructure 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 82 infrastructure companies based in Austria
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Infrastructure companies based in Austria at a glance
As of Sep 15, 2026Companies by employee count
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 82 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 infrastructure 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 “infrastructure 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 infrastructure 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 infrastructure 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, 2,678 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 15, 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 infrastructure 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 infrastructure companies are there based in Austria?
RevenueBase identified 82 infrastructure 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?
Porr Group, headquartered in Austria, tops this list with the largest team on record.
Which city has the most infrastructure companies?
Wien leads with 14 headquartered companies, followed by Graz (5) and Salzburg (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 2,678 verified decision-maker contacts tracked across these 82 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 15, 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.
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