# The 30 largest multinational companies in Vienna Tamtam tracks 228 multinational companies headquartered in Vienna. This list ranks the 30 largest by number of employees on LinkedIn, led by Vienna Insurance Group (VIG), A1 Telekom Austria Group and RHI Magnesita. Their median headcount is 4,014. Half of them were founded in 1957 or later. This selection of large multinational companies in Vienna shows a concentration in financial services, telecommunications, and manufacturing. Noteworthy examples include Vienna Insurance Group, a major insurance provider in Central and Eastern Europe; A1 Telekom Austria Group, a digital services and communications provider; RHI Magnesita, a global leader in refractory products; and Mondi Group, which produces packaging solutions. These companies are generally well-established, with several having long operational histories. A clear pattern among these firms is their strong focus on Central and Eastern European markets, often serving as regional hubs. Many also exhibit a vertically integrated value chain, from raw materials to finished products, or offer comprehensive service portfolios across multiple countries. πŸ‡¦πŸ‡Ή Vienna Β· 30 companies Β· Updated Nov 11, 2026 | # | Company | Industry | Headquarters | Employees | Founded | |---|---|---|---|---|---| | 1 | [Vienna Insurance Group (VIG)](https://www.tamtam.ai/c/vienna-insurance-group-vig) (group.vig)
Leading insurance group in Central and Eastern Europe with over 50 companies, serving 33 million customers and strong regional presence. | Insurance | πŸ‡¦πŸ‡Ή Vienna | 18,276 | | | 2 | [A1 Telekom Austria Group](https://www.tamtam.ai/c/a1-telekom-austria-group) (a1.group)
Leading digital services and communications provider in Central and Eastern Europe, enabling connectivity, digital business, and lifestyle for over 24 million users. | Telecommunications | πŸ‡¦πŸ‡Ή Vienna | 12,320 | 1887 | | 3 | [RHI Magnesita](https://www.tamtam.ai/c/rhi-magnesita) (rhimagnesita.com)
Global leader in high-grade refractory products and solutions for industries with high-temperature processes, leveraging a vertically integrated value chain and diverse geographic presence | Manufacturing | πŸ‡¦πŸ‡Ή Vienna | 12,000 | 1834 | | 4 | [Mondi Group](https://www.tamtam.ai/c/mondi-group) (linktr.ee)
Global integrated company managing forests, producing pulp, paper, plastic films, and manufacturing sustainable industrial and consumer packaging solutions. | Packaging and Containers Manufacturing | πŸ‡¦πŸ‡Ή Vienna | 9,160 | | | 5 | [UNIQA Insurance Group](https://www.tamtam.ai/c/uniqa-insurance-group) (uniqagroup.com)
Insurance provider for private and corporate clients across Austria and Central and Eastern Europe, offering risk protection and community support. | Insurance | πŸ‡¦πŸ‡Ή Vienna | 8,256 | | | 6 | [Γ–BB](https://www.tamtam.ai/c/obb) (holding.oebb.at)
With 13 million daily passengers and 1,300 freight trains, Γ–BB is a leading Austrian employer with over 42,000 employees and 2,000 apprentices | Rail Transportation | πŸ‡¦πŸ‡Ή Vienna | 7,419 | | | 7 | [OMV](https://www.tamtam.ai/c/omv) (omv.com)
A leading sustainable fuels, chemicals, and materials company focusing on circular economy solutions, transitioning to low-carbon businesses to achieve net zero emissions by 2050 | Utilities | πŸ‡¦πŸ‡Ή Vienna | 6,877 | 1956 | | 8 | [PORR Group](https://www.tamtam.ai/c/porr-group) (porr-group.com)
Large European construction company specializing in building, civil engineering, and infrastructure services across multiple countries and international markets. | Construction | πŸ‡¦πŸ‡Ή Vienna | 6,454 | | | 9 | [Erste Group](https://www.tamtam.ai/c/erste-group) (erstegroup.com)
A leading financial institute in Central and Eastern Europe, providing banking services to millions of customers, promoting career growth and innovation | Banking | πŸ‡¦πŸ‡Ή Vienna | 5,859 | | | 10 | [MM Group](https://www.tamtam.ai/c/mm-group) (mm.group)
Global provider of cartonboard and folding carton packaging solutions, including kraft papers, fine papers, leaflets, and labels promoting sustainability. | Paper and Forest Product Manufacturing | πŸ‡¦πŸ‡Ή Vienna | 5,712 | | | 11 | [Raiffeisen Bank International AG](https://www.tamtam.ai/c/raiffeisen-bank-international-ag) (rbinternational.com)
A leading banking group in Austria and CEE, offering a variety of financial services through subsidiary banks and other providers to millions of customers | Banking | πŸ‡¦πŸ‡Ή Vienna | 5,107 | 2010 | | 12 | [DO & CO AG](https://www.tamtam.ai/c/do-and-co-ag) (doco.com)
An Austrian company offering gourmet entertainment worldwide through Airline Catering, Event Catering, and Restaurants, dedicated to delivering exceptional quality and service | Hospitality | πŸ‡¦πŸ‡Ή Vienna | 4,937 | 1981 | | 13 | [Raiffeisen Bankengruppe](https://www.tamtam.ai/c/raiffeisen-bankengruppe) (raiffeisen.at)
A leading banking group with regional central banks and independent branches, employing 24,700 people in 1,955 locations | Banking | πŸ‡¦πŸ‡Ή Vienna | 4,377 | | | 14 | [A1 Telekom Austria AG](https://www.tamtam.ai/c/a1-telekom-austria-ag) (jobs.a1.com)
Provider of internet, voice, TV, and IT services in Austria, with a focus on sustainability and a range of digital solutions Part of a larger telecommunications group in Central and Eastern Europe | Telecommunications | πŸ‡¦πŸ‡Ή Vienna | 4,226 | 1881 | | 15 | [wienerberger](https://www.tamtam.ai/c/wienerberger) (wienerberger.com)
A leading provider of innovative solutions for the building envelope, infrastructure, and water and energy management, focusing on sustainability and affordability | Building Construction | πŸ‡¦πŸ‡Ή Vienna | 4,014 | 1819 | | 16 | [International Atomic Energy Agency (IAEA)](https://www.tamtam.ai/c/international-atomic-energy-agency-iaea) (iaea.org)
An international organization promoting safe, secure, and peaceful use of nuclear technologies through collaboration with Member States and global partners | International Affairs | πŸ‡¦πŸ‡Ή Vienna | 3,731 | 1957 | | 17 | [OSCE](https://www.tamtam.ai/c/osce) (osce.org)
Promoting regional security and cooperation through dialogue, monitoring elections, human rights advocacy, legislative reform, and combating threats like terrorism and human trafficking | International Affairs | πŸ‡¦πŸ‡Ή Vienna | 3,352 | 1975 | | 18 | [Austrian Airlines](https://www.tamtam.ai/c/austrian-airlines) (austrian.com)
Leading Austrian airline operating worldwide routes from Vienna, focusing on high service quality, environmental responsibility, and exceptional passenger experience. | Airlines and Aviation | πŸ‡¦πŸ‡Ή Vienna | 3,206 | 1957 | | 19 | [Γ–sterreichische Post AG](https://www.tamtam.ai/c/osterreichische-post-ag) (post.at)
An international post, logistics, and service conglomerate in Austria, with a wide reach in transportation, delivery services, e-commerce, and digital solutions | Transportation, Logistics, Supply Chain and Storage | πŸ‡¦πŸ‡Ή Vienna | 3,080 | | | 20 | [UNODC](https://www.tamtam.ai/c/unodc) (unodc.org)
Global leader fighting illicit drugs, international crime, terrorism Provides assistance to Member States, operates worldwide with field offices | International Affairs | πŸ‡¦πŸ‡Ή Vienna | 3,068 | 1997 | | 21 | [Erste Bank und Sparkasse](https://www.tamtam.ai/c/erste-bank-und-sparkasse) (sparkasse.at)
A leading financial institute in Central and Eastern Europe, offering banking services, financing for families, support for entrepreneurs, and creating innovative products | Banking | πŸ‡¦πŸ‡Ή Vienna | 2,970 | | | 22 | [Borealis](https://www.tamtam.ai/c/borealis) (borealisgroup.com)
A leading provider of sustainable polyolefin solutions, specializing in recycling and base chemicals, offering innovative material solutions for various industries globally | Chemical Manufacturing | πŸ‡¦πŸ‡Ή Vienna | 2,769 | 1994 | | 23 | [GoStudent](https://www.tamtam.ai/c/gostudent) (gostudent.org)
Leading hybrid tutoring company combining online and offline education services to support millions of families and unlock children's potential. | Education Administration Programs | πŸ‡¦πŸ‡Ή Vienna | 2,718 | 2016 | | 24 | [UNIDO](https://www.tamtam.ai/c/unido) (unido.org)
Promotes industrial development, supports sustainable supply chains, aids in ending hunger, and addresses climate breakdown through renewable energy and efficiency. | International Trade and Development | πŸ‡¦πŸ‡Ή Vienna | 2,705 | 1966 | | 25 | [WU (Vienna University of Economics and Business)](https://www.tamtam.ai/c/wu-vienna-university-of-economics-and-business) (wu.ac.at)
Leading academic institution for business and economics education, fostering contemplation, creativity, and pioneering research to enhance economic capability and social prosperity. | Higher Education | πŸ‡¦πŸ‡Ή Vienna | 2,647 | 1898 | | 26 | [Frequentis](https://www.tamtam.ai/c/frequentis) (frequentis.com)
An international supplier of communication and information systems for control centers with safety-critical tasks in air traffic management and public safety & transport sectors | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 2,573 | | | 27 | [ANDRITZ Hydro](https://www.tamtam.ai/c/andritz-hydro) (andritz.com)
Global leader in supplying electromechanical equipment and services for hydropower stations, offering innovative solutions for new and existing plants, and comprehensive maintenance services | Renewable Energy Equipment Manufacturing | πŸ‡¦πŸ‡Ή Vienna | 2,545 | 1805 | | 28 | [MM Packaging](https://www.tamtam.ai/c/mm-packaging) (mm.group)
Global producer of sustainable folding cartons serving beauty, food, and healthcare sectors with fiber-based packaging across multiple continents. | Packaging and Containers Manufacturing | πŸ‡¦πŸ‡Ή Vienna | 2,448 | | | 29 | [Wiener StΓ€dtische Versicherung](https://www.tamtam.ai/c/wiener-stadtische-versicherung) (wienerstaedtische.at)
A leading insurance company in Austria, part of VIENNA INSURANCE GROUP, offering reliable and innovative insurance products with a focus on customer satisfaction for over 190 years | Insurance | πŸ‡¦πŸ‡Ή Vienna | 2,250 | | | 30 | [AGRANA Group](https://www.tamtam.ai/c/agrana-group) (agrana.com)
Adds value to agricultural commodities for industrial products globally. Leaders in fruit preparations, starch products, and sugar across Europe, Asia, and America. | Food and Beverage Manufacturing | πŸ‡¦πŸ‡Ή Vienna | 2,211 | 1988 | ## How this list is built Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026. ## More company lists in Vienna - [The largest companies in Vienna](https://www.tamtam.ai/l/largest-companies-vienna) (580) - [Critical infrastructure operators in Vienna](https://www.tamtam.ai/l/critical-infrastructure-operators-vienna) (73) - [Financial services firms in Vienna](https://www.tamtam.ai/l/financial-services-firms-vienna) (71) - [IT Services and IT Consulting companies in Vienna](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-vienna) (61) - [Companies with in-house R&D in Vienna](https://www.tamtam.ai/l/r-and-d-companies-vienna) (60) - [SaaS companies in Vienna](https://www.tamtam.ai/l/saas-companies-vienna) (51) - [Software Development companies in Vienna](https://www.tamtam.ai/l/software-development-companies-vienna) (49) - [Companies with a mobile app in Vienna](https://www.tamtam.ai/l/companies-with-mobile-app-vienna) (48) - [Public sector organisations in Vienna](https://www.tamtam.ai/l/public-sector-organisations-vienna) (48) - [Manufacturers in Vienna](https://www.tamtam.ai/l/manufacturers-vienna) (48) - [Financial Services companies in Vienna](https://www.tamtam.ai/l/financial-services-companies-vienna) (47) - [Corporate groups and holding companies in Vienna](https://www.tamtam.ai/l/holding-companies-vienna) (47) - [Retail chains in Vienna](https://www.tamtam.ai/l/retail-chains-vienna) (41) - [IT services companies in Vienna](https://www.tamtam.ai/l/it-services-companies-vienna) (37) - [Education providers in Vienna](https://www.tamtam.ai/l/education-companies-vienna) (36) - [Professional services firms in Vienna](https://www.tamtam.ai/l/professional-services-firms-vienna) (35) - [Publicly traded companies in Vienna](https://www.tamtam.ai/l/publicly-traded-companies-vienna) (29) - [Hardware manufacturers in Vienna](https://www.tamtam.ai/l/hardware-companies-vienna) (27) - [Consulting firms in Vienna](https://www.tamtam.ai/l/consulting-firms-vienna) (25) - [Banking companies in Vienna](https://www.tamtam.ai/l/banking-companies-vienna) (25) ## The same list elsewhere in Austria - [Multinational companies in Austria](https://www.tamtam.ai/l/multinational-companies-austria) (578) - [Multinational companies in Upper Austria](https://www.tamtam.ai/l/multinational-companies-upper-austria) (96) - [Multinational companies in Lower Austria](https://www.tamtam.ai/l/multinational-companies-lower-austria) (60) - [Multinational companies in Styria](https://www.tamtam.ai/l/multinational-companies-styria) (56) - [Multinational companies in Salzburg](https://www.tamtam.ai/l/multinational-companies-salzburg) (38) - [Multinational companies in Tyrol](https://www.tamtam.ai/l/multinational-companies-tyrol) (31) - [Multinational companies in Vorarlberg](https://www.tamtam.ai/l/multinational-companies-vorarlberg) (31) - [Multinational companies in Linz](https://www.tamtam.ai/l/multinational-companies-linz) (29) --- Source: https://www.tamtam.ai/l/multinational-companies-vienna