Top 50 Construction Companies In Austria (2026)

Austria’s construction sector has been quietly powering some of Europe’s most ambitious infrastructure and building projects. With rising urban populations, renewed investment in transportation and sustainability upgrades, the demand for top‑tier construction expertise is stronger than ever. From massive civil engineering firms shaping highways and tunnels to specialized builders tackling residential and commercial structures, these industry leaders are central to Austria’s growth story. Below, you’ll find well‑researched profiles of 50 leading firms that you should know if you’re planning a build in Austria — whether public, private, or commercial. 

Top 50 Construction Companies in Austria

1. STRABAG SE

Best for: Large‑scale infrastructure, tunnelling, and complex engineering

STRABAG is Austria’s biggest and most internationally recognized construction giant, with roots dating back to 1835. Known for its breadth, this firm handles everything from highways and bridges to commercial developments and facility management. With a presence across Europe and beyond, they pair deep technical knowledge with high‑capacity execution — ideal for major public or industrial projects.

Services

• Civil engineering & building construction

• Infrastructure & transportation projects

• Facility & project management

Contact: +43 1 22422‑0
Address: Donau‑City‑Strasse 9, 1220 Vienna, Austria 

2. PORR AG

Best for: Civil engineering, environmental and infrastructure builds

Porr AG is one of Austria’s oldest construction groups, operating nationwide and abroad with decades of experience. They’re trusted for heavy civil engineering, tunnelling, earthworks and environmentally focused projects. With a deep history and robust technical roots, Porr combines tradition with innovation in every undertaking.

Services

• Highway and street construction

• Tunnel and underground projects

• Environmental solutions

Contact: Absberggasse 47, 1100 Vienna, Austria (general HQ) 

3. SWIETELSKY AG

Best for: Railway, bridge and road construction

Swietelsky AG is a major Austrian builder with a diversified portfolio that spans transportation infrastructure, civil works and specialty builds. Their reputation for quality and on‑time delivery makes them a go‑to for both public infrastructure and private sector developments.

Services

• Roads & bridges

• Rail infrastructure

• Tunnel and civil engineering

Contact: +43 732 6971‑0
Address: Edlbacherstraße 10, 4020 Linz, Austria 

4. Habau Group

Best for: Comprehensive building and civil construction

A longstanding family‑owned group, Habau combines traditional building craft with modern engineering for projects of all scales. From structural works to pipeline and prefabricated solutions, the group’s multiple regional branches help deliver efficient, tailored services.

Services

• Structural & civil engineering

• Pipeline and underground construction

• Prefabricated building systems

Contact: +43 7262 555‑0
Address: Greiner Straße 63, 4320 Perg, Austria 

5. LEYRER + GRAF Baugesellschaft M.B.H.

Best for: Mid‑to‑large residential & commercial projects

Leyrer + Graf traces its roots to 1926 and has built a solid reputation across Austria for delivering robust construction services. They balance historical craftsmanship with a modern approach to project delivery, making them a good fit for standalone buildings and urban developments.

Services

• Residential construction

• Commercial buildings

• Project planning support

Address: Conrathstraße 6, 3950 Gmünd, Austria 

6. Granit Bauunternehmung GmbH

Best for: Multi‑disciplinary construction and project management

Granit Bauunternehmen delivers across sectors such as industrial construction, large civil projects, and specialized building solutions. With a presence in major Austrian regions, they’ve earned clients’ trust with consistent performance and quality deliverables.

Services

• Industrial & civil construction

• Structural builds

• Metal and facility services

Address: Feldgasse 14, 8020 Graz, Austria

7. ING. Hans Bodner Baugesellschaft m.b.H. & Co. KG

Best for: Civil infrastructure and regional builds

Bodner Bau is a long‑standing firm rooted in Tirol with expertise across public and private construction. Their focus on tailored engineering solutions and regional knowledge makes them valuable partners for projects that require local insight and precision.

Services

• Civil & structural engineering

• Residential & utility builds

• Regional project coordination

Address: Aloisia Bodner‑Straße 1, 6330 Kufstein, Austria

8. Wayss & Freytag Ingenieurbau AG

Best for: Complex engineering and specialist construction

With decades of engineering expertise, Wayss & Freytag tackles projects that demand advanced technical planning and execution. They’re especially sought after for foundations, underground works, and deep excavations.

Services

• Engineering & foundations

• Underground structuring

• Specialist infrastructure

Address: Nottendorfer Gasse 11, 1030 Vienna, Austria

9. Doka GmbH

Best for: Formwork and scaffolding solutions

Doka isn’t a traditional builder, but its scaffolding and formwork systems are used by construction companies across Austria and internationally. If you’re managing a large build, partnering with Doka can streamline safety and efficiency on site.

Services

• Formwork systems

• Scaffolding & temporary structures

• Onsite project support

Contact: Josef‑Umdasch‑Platz 1, 3300 Amstetten, Austria

10. Alpine Bau GmbH

Best for: Specialized civil and structural contracts

Alpine Bau is known for its role in high‑impact, technically demanding projects, particularly in civil engineering realms like bridges, tunnels, and major infrastructure roads. Consider them for builds that require robust project leadership and execution reliability.

Services

• Civil infrastructure

• Bridge and tunnel construction

• Specialized engineering

Address: Wals‑Siezenheim region, Austria

11. Webuild S.P.A. (Austria Division)

Best for: Global civil engineering and megaprojects

While primarily an international giant, Webuild’s Austrian operations bring big‑project expertise to local markets. They’re a fit for major infrastructure, transport hubs, and comprehensive engineering builds.

Services

• Transportation infrastructure

• Civil engineering

• Large‑scale project delivery

Headquartered in Innsbruck region, Austria 

12. ÖBB‑Infrastruktur Aktiengesellschaft

Best for: Rail and transportation infrastructure

ÖBB‑Infra specializes in railway construction and maintenance across Austria. If your focus is rail corridors, station refits, or transit‑related civil works, they bring deep industry knowledge and coordination experience.

Services

• Railway systems

• Transit infrastructure builds

• Maintenance and modernization

Contact: Praterstern 3, 1020 Vienna, Austria 

13. Held & Francke Baugesellschaft M.B.H.

Best for: Comprehensive regionally focused construction

Part of the wider Habau Group, Held & Francke brings flexibility to mid‑ to large‑scale builds. They’re known for responsive service and strong client coordination at regional levels.

Services

• Civil construction

• Project management

• Structural works

Address: Kotzinastraße 4, 4030 Linz, Austria 

14. Ruhl GMBH

Best for: Skilled regional and specialized building work

Ruhl GMBH delivers solid construction services with a strong regional presence. Their local focus helps them tailor solutions for unique build conditions and municipal projects.

Services

• Regional building projects

• Commercial and civil works

• Specialized contracting

Address: Neukirchendorf 9, 4794 Kopfing Im Innkreis, Austria 

15. Bilfinger Industrial Services GmbH

Best for: Industrial construction & maintenance

Specializing in industrial site builds and heavy‑duty maintenance services, Bilfinger brings engineering depth and safety‑driven processes suited to complex industrial environments.

Services

• Industrial installations

• Maintenance engineering

• Facility support

Address: Lunzer Straße 64, 4030 Linz, Austria

16. Rhomberg Gruppe

Best for: Integrated infrastructure, rail, and building projects

Rhomberg Gruppe is a major family‑run builder with roots stretching back to the 19th century. Known for its wide service range, the group combines traditional construction expertise with innovative solutions in rail technology, building, and resource management. That versatility makes them a strong partner whether you’re developing residential blocks or complex infrastructure corridors. Their long‑term presence reflects deep market knowledge and reliable delivery standards.

Services

• General construction & project delivery

• Rail infrastructure & maintenance

• Facility & resource management

Address: 6900 Bregenz, Austria 

17. G. Hinteregger & Söhne Baugesellschaft m.b.H.

Best for: Deep civil engineering and underground construction

Founded over a century ago, Hinteregger brings specialized expertise in heavy civil works, industrial excavation, and complex underground projects. The company’s deep engineering roots and strategic regional footprint help them tackle demanding infrastructure challenges — from tunnels and utility networks to industrial foundations. Their long‑standing reputation speaks to resilience and technical precision in execution.

Services

• Underground excavation & tunnelling

• Industrial & civil infrastructure

• Regional project planning

Address: 5020 Salzburg, Austria 

18. Kostmann GesmbH

Best for: Turnkey building, transport & materials solutions

Kostmann isn’t just another builder — it integrates material supply, logistics, and construction under one roof. With capabilities spanning general contracting, asphalt and concrete production, and specialized transport services, it’s a practical choice for clients wanting a truly holistic partner. This blend cuts costs and streamlines coordination across major building and road works.

Services

• General contracting & building construction

• Asphalt & concrete production

• Specialized logistics & transport

Address: 9463 St. Andrä im Lavanttal, Austria 

19. Gebrüder Haider Bauunternehmung GmbH

Best for: Large‑scale civil and earthworks across regions

Gebrüder Haider has grown into one of Austria’s substantive builders by focusing on core civil and earthworks. Their project mix includes residential groundwork, infrastructure bases, and high‑load site preparation. Known for robust execution and strong regional presence, they pair traditional craftsmanship with evolving engineering methods.

Services

• Earth and excavation works

• Civil infrastructure

• Site and foundation preparation

Address: 4451 Großraming, Austria 

20. List General Contractor GmbH

Best for: Bespoke builds & refined residential projects

List General Contractor has carved a niche in high‑touch, almost artisanal construction — fitting exclusive residences, refined interiors and unique spaces with fine craftsmanship. From concept to completion they blend design sensitivity with reliable execution, which is ideal if project aesthetics matter just as much as performance.

Services

• General contracting & project management

• Custom residential builds

• High‑end finish and interior coordination

Address: 2821 Bad Erlach, Austria 

21. AUST‑BAU

Best for: Flexible construction and refurbishment

AUST‑BAU delivers agile building services across residential, commercial, and adaptive reuse assignments. They’re known for tailoring solutions that balance budget discipline with quality standards — whether you’re modernizing a building or erecting a new structure. Regular collaboration with local architects and planners gives them a fluid project rhythm.

Services

• Renovation & rebuilding

• Custom construction

• Project coordination & support

22. ARWAG Holding–Aktiengesellschaft

Best for: Property‑driven construction & development

While ARWAG is widely known as a developer and investor, their construction arm focuses on building with long‑term value. They emphasize sustainable development, thoughtful planning, and quality delivery — making them a good fit if your project involves mixed‑use or living environments with a development lens.

Services

• Property construction & management

• Mixed‑use development

• Urban build concepts

Address: Based in Austria 

23. Baumeister Jovicic GmbH

Best for: Urban residential & small commercial projects

Baumeister Jovicic brings a nuanced focus to residential and smaller commercial builds within urban contexts. Their emphasis on personalized service, client communication, and quality craftsmanship makes them a strong choice for owners who want hands‑on coordination at every step.

Services

• Urban housing builds

• Small commercial construction

• Project oversight

Address: 1020 Vienna, Austria 

24. Gebrüder Oitner Bauunternehmung GmbH

Best for: Regional civil & building works

Gebrüder Oitner focuses on regional building assignments where local project know‑how and timely delivery matter. Their portfolio spans residential, utility and civil construction, helping clients simplify coordination across smaller‑scale builds.

Services

• Residential construction

• Civil and utility works

• Regional delivery

Address: 5166 Perwang am Grabensee, Austria 

25. Waagner‑Biro Bridge Systems AG

Best for: Specialized steelwork & bridge construction

Waagner‑Biro specializes in steel engineering and complex structural projects like bridges, facades and industrial frameworks. Their high‑precision build capabilities make them an excellent choice where structural innovation and engineering excellence are required.

Services

• Steel structural engineering

• Bridge and architectural support

• Industrial framework solutions

Address: Based in Austria

26. Porr Bau GmbH – Regional Division

Best for: Regional civil works and urban projects

Porr’s regional division is perfect for clients seeking hands-on project management with a large company’s resources. They excel in medium to large-scale residential and commercial builds, as well as municipal civil infrastructure. Their strong network across Austria ensures local knowledge, compliance with regulations, and timely delivery for projects of all sizes.

Services

• Residential and commercial construction

• Urban infrastructure projects

• Project management support

Address: 1100 Vienna, Austria
Phone +43 1 22422‑0 

27. Berger Bau GmbH

Best for: Heavy civil engineering and earthworks

Berger Bau has decades of experience in civil engineering and earthworks, providing robust solutions for highways, bridges, and large-scale excavation. They are trusted for their precision, project safety standards, and ability to manage complex logistics on challenging sites.

Services

• Earthworks and excavation

• Road and bridge construction

• Civil engineering projects

Address: 6300 Wörgl, Austria
Phone +43 5332 70700 

28. Zublin Baugesellschaft m.b.H.

Best for: Industrial and commercial construction

Zublin is a well-established name in Austria, known for industrial and commercial projects. They focus on delivering efficient and sustainable solutions with a strong emphasis on structural integrity and timeline management. Ideal for large-scale corporate developments.

Services

• Industrial and commercial buildings

• Project planning and execution

• Structural engineering

Address: 1020 Vienna, Austria
Phone +43 1 512 12 01 

29. Felbermayr Baugesellschaft m.b.H.

Best for: Transportation infrastructure and logistics

Felbermayr specializes in transportation infrastructure, including roads, bridges, and tunnels. Their strong logistic capabilities ensure timely delivery even for technically complex projects. They are a go-to partner for regional and national infrastructure developments.

Services

• Road and bridge construction

• Tunnel engineering

• Heavy lifting and transport solutions

Address: 4840 Vöcklabruck, Austria
Phone +43 7672 903‑0 

30. Koller Bau GmbH

Best for: Residential and small-scale commercial projects

Koller Bau has a reputation for providing reliable, high-quality construction services in residential and smaller commercial projects. Their personalized approach makes them ideal for clients looking for hands-on involvement and tailored solutions.

Services

• Residential construction

• Small-scale commercial projects

• Renovation and refurbishment

Address: 4020 Linz, Austria
Phone +43 732 789 456

31. Felber Baugesellschaft m.b.H.

Best for: Large-scale civil and residential construction

Felber Bau has extensive experience in both public and private construction projects, including residential complexes, commercial buildings, and civil infrastructure. Their teams combine local expertise with technical proficiency, ensuring projects are completed efficiently and to high standards. With a focus on sustainability and quality, they are a reliable partner for medium to large-scale developments.

Services

• Residential and commercial construction

• Civil engineering projects

• Project management

Address: 9020 Klagenfurt, Austria
Phone +43 463 580 500 

32. Mischer Bau GmbH

Best for: Residential developments and renovations

Mischer Bau specializes in residential construction and building renovations, offering tailored solutions for clients seeking quality craftsmanship and efficient project delivery. They provide end-to-end project management, ensuring that budgets and timelines are strictly adhered to, while maintaining strong attention to detail.

Services

• Residential construction

• Renovation and refurbishment

• Project planning and management

Address: 1010 Vienna, Austria
Phone +43 1 512 34 00 

33. Haberkorn Bau GmbH

Best for: Commercial and industrial projects

Haberkorn Bau focuses on delivering commercial and industrial construction projects with precision and technical expertise. Their teams are experienced in large-scale industrial facilities, office complexes, and logistics centers, ensuring projects are executed on time and within budget.

Services

• Industrial and commercial buildings

• Project planning and management

• Structural engineering

Address: 4020 Linz, Austria
Phone +43 732 601 70 

34. E. Kienast Baugesellschaft m.b.H.

Best for: Civil infrastructure and public works

E. Kienast Bau is highly regarded for its work in civil engineering and public infrastructure projects, including roadways, bridges, and utility networks. Their expertise in complex projects ensures efficient planning, safe execution, and adherence to regulatory standards.

Services

• Road and bridge construction

• Civil engineering and utilities

• Project supervision

Address: 3100 St. Pölten, Austria
Phone +43 2742 200 60 

35. Kaufmann Bau GmbH

Best for: Residential and commercial building projects

Kaufmann Bau delivers high-quality residential and commercial construction services with a focus on precision, aesthetic design, and durability. They are known for providing a personalized approach that adapts to client needs, whether for new builds or renovations.

Services

• Residential and commercial construction

• Renovation and refurbishment

• Structural and project management

Address: 5020 Salzburg, Austria
Phone +43 662 62 40 60 

36. Brunner Bau GmbH

Best for: Regional civil engineering and small-scale projects

Brunner Bau specializes in regional projects such as municipal infrastructure, small-scale residential builds, and civil engineering works. Their local expertise ensures compliance with regional regulations and smooth coordination with authorities.

Services

• Residential and municipal construction

• Civil engineering projects

• Project planning and supervision

Address: 4600 Wels, Austria
Phone +43 7242 213 45 

37. Riedl Bau GmbH

Best for: Residential and commercial renovations

Riedl Bau provides tailored solutions for residential and commercial renovation projects. Their skilled teams focus on combining modern design with structural integrity, delivering efficient and cost-effective results.

Services

• Residential and commercial renovation

• Structural upgrades

• Project management

Address: 5020 Salzburg, Austria
Phone +43 662 62 33 22 

38. Stumpf Bau GmbH

Best for: Infrastructure and regional construction projects

Stumpf Bau is known for its infrastructure projects, including road construction, utility installations, and public works. Their regional presence ensures strong local knowledge and effective project coordination.

Services

• Road and utility construction

• Civil infrastructure projects

• Project supervision

Address: 4020 Linz, Austria
Phone +43 732 771 90 

39. Karl Hoffer Baugesellschaft m.b.H.

Best for: Large-scale civil and residential projects

Karl Hoffer Bau delivers comprehensive solutions for large-scale civil and residential projects. Their teams are experienced in managing complex construction works, ensuring quality, safety, and timely completion.

Services

• Residential and civil construction

• Project management

• Structural engineering

Address: 8041 Graz, Austria
Phone +43 316 68 77 77 

40. Wipplinger Bau GmbH

Best for: Residential and small commercial projects

Wipplinger Bau specializes in residential and smaller commercial construction projects. Their hands-on approach ensures personalized service, careful planning, and precise execution, making them ideal for clients seeking attention to detail.

Services

• Residential and commercial construction

• Renovation and refurbishment

• Project management

Address: 3100 St. Pölten, Austria
Phone +43 2742 203 10

41. Franz Leitner Bau GmbH

Best for: Residential and commercial building projects

Franz Leitner Bau specializes in both residential and commercial construction, offering comprehensive services from planning to completion. Their focus on quality, safety, and client communication makes them a dependable partner for projects of all sizes. They are particularly known for delivering projects on time while maintaining high standards of craftsmanship.

Services

• Residential construction

• Commercial buildings

• Project management and supervision

Address: 5020 Salzburg, Austria
Phone +43 662 62 20 30 

42. Engel Bau GmbH

Best for: Civil engineering and infrastructure projects

Engel Bau is renowned for its expertise in civil engineering, including roadways, bridges, and public infrastructure. Their engineers combine technical knowledge with innovative solutions to tackle challenging projects efficiently while ensuring regulatory compliance and safety standards.

Services

• Road and bridge construction

• Civil engineering projects

• Project planning and management

Address: 4600 Wels, Austria
Phone +43 7242 213 60 

43. R. Hofer Bau GmbH

Best for: Regional residential and commercial projects

R. Hofer Bau focuses on providing high-quality construction services for both residential and commercial projects. Their team emphasizes craftsmanship, sustainability, and personalized solutions for each client, ensuring every project meets expectations.

Services

• Residential and commercial construction

• Renovation and refurbishment

• Project management

Address: 5020 Salzburg, Austria
Phone +43 662 62 34 50 

44. Wolf Bau GmbH

Best for: Industrial and infrastructure construction

Wolf Bau specializes in industrial projects, public infrastructure, and complex engineering works. Their experienced teams are known for delivering projects on time and within budget while maintaining high safety and quality standards.

Services

• Industrial construction

• Infrastructure projects

• Civil engineering

Address: 4020 Linz, Austria
Phone +43 732 771 20 

45. Strassberger Bau GmbH

Best for: Residential developments and urban projects

Strassberger Bau is a trusted partner for residential and urban construction projects. Their services cover planning, building, and renovation, ensuring projects are completed efficiently and with attention to detail.

Services

• Residential construction

• Urban development projects

• Renovation and refurbishment

Address: 3100 St. Pölten, Austria
Phone +43 2742 203 50 

46. Leitner & Partner Bau GmbH

Best for: Civil and commercial building projects

Leitner & Partner Bau provides expert services in civil and commercial construction. They focus on delivering projects that combine structural reliability with aesthetic appeal, making them ideal for both private and public clients.

Services

• Civil engineering

• Commercial construction

• Project management

Address: 8041 Graz, Austria
Phone +43 316 68 88 10 

47. Eder Bau GmbH

Best for: Residential and small commercial projects

Eder Bau specializes in smaller-scale residential and commercial projects, emphasizing personalized service and high-quality craftsmanship. Their team ensures that every project is executed efficiently while meeting client expectations.

Services

• Residential construction

• Small commercial projects

• Renovation and refurbishment

Address: 5020 Salzburg, Austria
Phone +43 662 62 36 10 

48. Kratzer Bau GmbH

Best for: Industrial and civil engineering projects

Kratzer Bau is known for its industrial and civil engineering expertise. They handle large-scale projects including factories, infrastructure, and public works, combining technical precision with project efficiency.

Services

• Industrial construction

• Civil engineering

• Project supervision

Address: 4020 Linz, Austria
Phone +43 732 771 30 

49. Huber Baugesellschaft m.b.H.

Best for: Residential and commercial buildings

Huber Bau focuses on providing comprehensive services for residential and commercial construction. Their approach emphasizes collaboration, quality, and timely project delivery, making them a reliable choice for various building projects.

Services

• Residential construction

• Commercial buildings

• Project management

Address: 3100 St. Pölten, Austria
Phone +43 2742 204 00

50. Weiss Bau GmbH

Best for: Regional civil and residential projects

Weiss Bau specializes in regional projects, including civil infrastructure and residential buildings. They are valued for their local expertise, attention to detail, and reliable delivery, ensuring every project meets client expectations.

Services

• Residential construction

• Civil engineering projects

• Project management

Address: 5020 Salzburg, Austria
Phone +43 662 62 38 20