Company lists · Data refreshed September 2026
Top 25 Office building investment firms based in Austria
RevenueBase identified 181 office building investment firms headquartered in Austria as of September 2026 and tracks 1,246 professional contacts across them, including 436 with verified work emails and 46 with mobile numbers. Wien is the largest hub.
This list covers office building investment firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 office building investment firms based in Austria
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | Örag Immobilien GruppeIndirect evidence | 105 | |||
“Tradition und Innovation.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 95 | ||||
“An investor in and operator of European commercial real estate assets, CC Real was established in 2006 and today employs more than 200 individuals across 6 countries.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 73 | ||||
“Immobilien sind etwas ganz Besonderes.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 55 | ||||
“AREALIS Liegenschaftsmanagement GmbH was founded in 2006 and is a subsidiary of Erste Group Immorent GmbH and WIENER STÄDTISCHE VERSICHERUNG AG Vienna Insurance Group.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | Öbb-ImmobilienmanagementIndirect evidence | 54 | |||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 51 | ||||
“IG Immobilien ist führender Anbieter bei Errichtung, Betrieb und Betreuung von Immobilien und hat sich auf hochwertig ausgestattete Wohn- und Büroobjekte, innerstädtische…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 43 | ||||
“Die ARE Austrian Real Estate ist ein auf Büro, Wohn- und Entwicklungsliegenschaften spezialisiertes Immobilienunternehmen.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 32 | ||||
“Unser engagiertes Team betreut eine Vielzahl von Immobilientypen, darunter Gewerbebereiche, Logistikzentren, Hotels, Fachmarktzentren, Wohn- und Zinshäuser…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 29 | ||||
“STRAUSS PROPERTY MANAGEMENT ist 100%-Tochter der börsennotierten PORR AG und verwaltet erfolgreich Ihre Immobilien mit Standorten in Wien, Kärnten, Graz und Tirol.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | Winegg Realitäten GmbhIndirect evidence | 28 | |||
“Seit über 25 Jahren ist die WINEGG als Investor, Projektentwickler, Bauträger und Makler tätig.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 15 | ||||
“CBS International ist ein Mitglied der Cushman & Wakefield Alliance, einem führenden globalen Immobiliendienstleister mit Mitarbeitern in mehr als 60 Ländern, der Mietern und…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 13 | ||||
“Unsere Kerntätigkeiten sind die Verwaltung, Betreuung und Entwicklung von Immobilien für Anleger.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | Aquila Hausmanagement GmbhIndirect evidence | 13 | |||
“Corporate real estate management, Facility management & Construction” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 11 | ||||
“AURIS Immo Solutions GmbH ist eine unabhängige, inhabergeführte Immobilien-Managementgesellschaft mit Sitz in Wien.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 10 | ||||
“Union Investment Real Estate Austria AG, based in Vienna, is the Austrian subsidiary of Union Investment, that manages the open-ended real estate fund immofonds 1.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | Wesiak GroupIndirect evidence | 10 | |||
“Die WESIAK Group, mit Sitz in Graz, Wien und Klagenfurt, ist ein Allrounder in der Immobilienbranche.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 10 | ||||
“Willkommen auf der Unternehmensseite der Firma RI Realinvest GmbH.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | NV Immobilien GmbhIndirect evidence | 10 | |||
“NV Immobilien GmbH is a company based out of RÖGERGASSE 34, Wien, Wien, Austria.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 9 | ||||
“Mit höchstem Anspruch an Lage, Architektur und Bau kreieren wir Immobilien der Extraklasse.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 8 | ||||
“EKAZENT ist Ihr Spezialist für die Assetklassen Wohnen, Hotel und Retail.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 | ||||
“50 Jahre Erfahrung in der lmmobilienbranche machen BIP lmmobilien zu lhrem perfekten Partner in Sachen Anlagewohnungen.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 | ||||
“Im Jahre wurde die Firma Technopark-Raaba gegründet und schon damals wurde das Potenzial für den Standort Raaba erkannt.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 7 | ||||
“Projekt Wohnen ist ein Immobilientreuhandunternehmen mit Firmensitz in Graz.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | Hajek Riedmann Projekt GmbhIndirect evidence | 6 | |||
“Unsere Leistungen umfassen ein breites Spektrum über den gesamten Lebenszyklus von Immobilien.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 6 | ||||
“Die zur K1 Group gehörigen Unternehmen decken ein breites Spektrum im Bereich Immobilien und Immobilienmanagement ab: Von der Errichtung über Sanierung bis hin zur Vermarktung und…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 181 office building investment firms based in Austria
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Office building investment firms based in Austria at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 office building investment firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Austria whose own description of what they do matches “office building investment firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among office building investment firms, 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 an evidence 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, 436 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 5, 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.
Office building investment firms by metro
- Office building investment firms in Wien62
Frequently asked
How many office building investment firms are there based in Austria?
RevenueBase identified 181 office building investment firms 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?
Örag Immobilien Gruppe, headquartered in Wien, tops this list with the largest team on record.
Which city has the most office building investment firms?
Wien leads with 62 headquartered companies, followed by Vienna (18) and Graz (17).
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 436 verified decision-maker contacts tracked across these 181 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 5, 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 SmartSearch, 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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