PORR
Austrian construction and engineering group active in building construction, civil engineering, tunnelling, infrastructure, and environmental services.
Last updated August 31, 2026
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Overview
PORR AG is an Austrian construction and engineering group headquartered in Vienna. Its business spans the construction value chain, including planning, design, construction, operation, maintenance, and redevelopment. The group works on buildings, transport infrastructure, tunnels, bridges, railways, roads, industrial facilities, energy infrastructure, environmental projects, and selected facility-management activities. It operates primarily in Austria, Germany, Switzerland, Central and Eastern Europe, Northern Europe, and selected Middle Eastern and international project markets. The company traces its origins to 1869, when Allgemeine Österreichische Baugesellschaft was established in Vienna and listed on the Vienna Stock Exchange. This history makes PORR one of Austria’s oldest continuously listed companies. During its early decades, the business participated in the development of Vienna, including projects associated with the Ringstrasse, exhibition facilities, hotels, and other major urban structures. Its later history was shaped by infrastructure construction and by the consolidation of Austrian construction companies. The PORR name comes from construction engineer Arthur Porr, who co-founded A. Porr Betonbau. That company merged with Allgemeine Österreichische Baugesellschaft in 1927, producing the corporate predecessor of today’s group. In the interwar period, the enlarged company undertook major infrastructure work, including involvement in the Grossglockner High Alpine Road. After the Second World War, it expanded its role in national reconstruction and large public and commercial projects, including Vienna’s Ringturm. PORR is particularly associated with technically demanding civil engineering and tunnelling. During the 1970s, the company contributed to the development and application of the New Austrian Tunnelling Method, an approach that became influential in modern underground construction. The group subsequently expanded outside Austria, building a presence in Germany and other European markets and taking on selected projects in the Middle East and elsewhere. From the late twentieth century onward, PORR pursued growth through international expansion, business-unit development, and acquisitions. It became the majority owner of Austrian road-construction company Teerag-Asdag in 2000. In 2013, the group adopted the shorter PORR AG name. Its real-estate division was separated in 2014, sharpening the group’s focus on construction and related engineering services. In 2017, PORR acquired the Oevermann Group from Dutch construction company Heijmans, strengthening its German activities. PORR entered the Austrian Traded Index in 2018. The company is organised as an operating holding company. Its structure has included a unit covering Austria, Switzerland, and industrial construction; a Germany-focused unit; and a unit serving Central and Eastern Europe together with selected international markets. Its service portfolio includes building construction, civil engineering, infrastructure, tunnelling, foundation engineering, pipeline construction, environmental engineering, and project-related technical services. Notable referenced projects include work on Stuttgart 21 and the Wendlingen–Ulm high-speed railway in Germany, the second tube of Austria’s Tauern Tunnel, the second Albula Tunnel in Switzerland, the Sava Bridge in Belgrade, Vienna Networks’ headquarters, and the renovation of Vienna’s Theater in der Josefstadt. Since September 2010, the group has been led by chief executive Karl-Heinz Strauss according to the referenced company history.
History
PORR began in Vienna in 1869 as Allgemeine Österreichische Baugesellschaft. It was listed on the Vienna Stock Exchange on 8 April of that year, establishing a long-standing connection with Austria’s public capital market. In the late nineteenth century, the company worked on important Viennese urban-development projects, including buildings along the Ringstrasse, exhibition pavilions, and hotels associated with the 1873 World Exposition. The company’s modern name derives from engineer Arthur Porr. His A. Porr Betonbau merged with Allgemeine Österreichische Baugesellschaft in 1927, creating Allgemeine Baugesellschaft – A. Porr Aktiengesellschaft. During the interwar period, the combined company expanded its infrastructure expertise and participated in projects such as the Grossglockner High Alpine Road. After the Second World War, PORR became involved in reconstruction and in the delivery of major Austrian public, commercial, and office buildings. One notable post-war project was Vienna’s Ringturm. The company’s technical profile developed further through civil engineering and underground construction. In the 1970s, it contributed to the development of the New Austrian Tunnelling Method, which influenced the design and construction of tunnels internationally. From the late twentieth century, PORR expanded beyond Austria into Germany, Central and Eastern Europe, Switzerland, Northern Europe, and selected Middle Eastern markets. In 2000, it became the majority owner of Teerag-Asdag, an important Austrian road-construction business. The group later streamlined its identity and portfolio: in 2013 it became PORR AG, and in 2014 it separated its real-estate division to concentrate on construction. PORR continued to strengthen its German position through the 2017 acquisition of the Oevermann Group from Heijmans. In 2018, it was included in the Austrian Traded Index. The group is organised around regional and business units covering Austria, Switzerland, industrial construction, Germany, Central and Eastern Europe, and selected international projects. Its activities range from building construction and infrastructure to tunnelling, environmental engineering, pipelines, foundations, and facility-related services. Referenced projects illustrate the breadth of the company’s work. They include sections of Stuttgart 21 and the Wendlingen–Ulm high-speed line in Germany, the second tube of the Tauern Tunnel in Austria, the second Albula Tunnel for the Rhaetian Railway in Switzerland, the Sava Bridge in Belgrade, Vienna Networks’ headquarters, and the renovation of the Theater in der Josefstadt. PORR’s current identity is therefore rooted less in a consumer-facing product than in the delivery of technically complex construction and engineering projects.
- 2018
Included in the Austrian Traded Index
[1]PORR entered the ATX benchmark index.
- 2017
Oevermann Group acquisition
[1]PORR acquired the Oevermann Group from Heijmans.
- 2014
Real-estate division spun off
[1]PORR separated its real-estate division and focused the group on construction.
- 2013
Renamed PORR AG
[1]The company changed its name from Allgemeine Baugesellschaft – A. Porr AG to PORR AG.
- 2000
Teerag-Asdag majority acquisition
[1]PORR became the majority owner of Austrian road-construction company Teerag-Asdag.
- 1970
Contribution to the New Austrian Tunnelling Method
[1]During the 1970s, PORR contributed to the development of the New Austrian Tunnelling Method.
- 1927
Merger creates the A. Porr predecessor
[1]A. Porr Betonbau merged with Allgemeine Österreichische Baugesellschaft.
- 1873
Work connected with the Vienna World Exposition
[1]The company built exhibition pavilions and hotels for the Vienna World Exposition.
- 1869
Company founded and listed in Vienna
[1]Allgemeine Österreichische Baugesellschaft was established in Vienna and listed on the Vienna Stock Exchange on 8 April.
Products and positioning
A technically oriented European construction group positioned around complex infrastructure, tunnelling, civil engineering, and integrated building-construction capabilities.
Construction services
Building construction
PORR delivers offices, residential buildings, public facilities, healthcare properties, industrial plants, commercial buildings, and sports venues. Its role can cover planning, engineering, construction, refurbishment, and related project coordination.
Infrastructure construction
Civil engineering and infrastructure
The group constructs and upgrades roads, bridges, rail systems, foundations, pipelines, power-related infrastructure, and other large civil-engineering assets. These activities form a core part of PORR’s public-infrastructure and industrial project portfolio.
Specialist engineering
Tunnelling
PORR undertakes road, rail, alpine, and urban tunnelling projects. Its historical association with the New Austrian Tunnelling Method reflects the group’s emphasis on geotechnical engineering, underground construction, and technically complex transport infrastructure.
Environmental services
Environmental engineering
Environmental activities include remediation of contaminated sites, waste-treatment facilities, and systems intended to support environmental protection. These services extend PORR’s construction role into the development and renewal of environmental infrastructure.
Property and infrastructure services
Facility and lifecycle services
PORR provides services connected with the operation, maintenance, redevelopment, and broader lifecycle management of constructed assets. The offering complements its planning and construction capabilities and supports longer-term client relationships.
Brand decisions
2017
Acquire the Oevermann GroupM&ABackground
PORR aimed to expand and consolidate its German construction activities.
Action taken
PORR acquired Oevermann from Heijmans.
Aftermath
The acquisition strengthened PORR’s presence in Germany.
2014
Separate the real-estate divisionStrategyBackground
PORR was refining its portfolio and concentrating on construction-related operations.
Action taken
The company spun off its real-estate division.
Aftermath
The group’s strategic focus became more exclusively centred on construction and engineering.
2013
Adopt the PORR AG corporate nameStrategyBackground
The group had a long and complex historical name and was consolidating its corporate identity.
Action taken
Allgemeine Baugesellschaft – A. Porr AG was renamed PORR AG.
Aftermath
The shorter PORR identity became the group’s principal corporate brand.
2000
Acquire majority ownership of Teerag-AsdagM&ABackground
PORR sought to strengthen its position in Austrian road construction and infrastructure.
Action taken
The group became the majority owner of Teerag-Asdag.
Aftermath
The transaction expanded PORR’s road-construction platform in Austria.
Recent events
- 2018
PORR joins the Austrian Traded Index[1]
Other
PORR was included in Austria’s ATX benchmark index.
- 2017
PORR acquires the Oevermann Group[1]
M&A
PORR acquired the Oevermann Group from Heijmans, expanding its German construction operations.
- 2014
PORR separates its real-estate division[1]
Other
The real-estate division was spun off, leaving PORR more directly focused on construction and engineering activities.
- 2013
The group adopts the PORR AG name[1]
Other
Allgemeine Baugesellschaft – A. Porr AG was renamed PORR AG as part of the group’s modern corporate identity.
- 2000
PORR becomes majority owner of Teerag-Asdag[1]
M&A
PORR acquired majority ownership of the Austrian road-construction company Teerag-Asdag.
- 1927
A. Porr and Allgemeine Österreichische Baugesellschaft merge[1]
M&A
The merger created the corporate predecessor of the modern PORR group and brought the Porr name into the company’s identity.
- 1869
PORR traces its corporate origins to 1869[1]
Other
Allgemeine Österreichische Baugesellschaft was founded in Vienna and listed on the Vienna Stock Exchange in the same year.
Sources2 sources
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