# Publicly traded companies headquartered in Vienna Tamtam tracks 29 publicly traded companies headquartered in Vienna. This list ranks all of them by number of employees on LinkedIn, led by Vienna Insurance Group (VIG), A1 Telekom Austria Group and RHI Magnesita. Their median headcount is 1,743. Half of them were founded in 1988 or later. The publicly traded companies in Vienna on this list are large, established firms. Industries represented include insurance, telecommunications, manufacturing, and banking. Notable examples include Vienna Insurance Group (VIG), a leading insurance group 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, an integrated company managing forests and producing packaging solutions. A common thread among these companies is their significant presence in Central and Eastern Europe. Many, like OMV, founded in 1956, and Wienerberger, founded in 1819, have long histories, indicating a mature corporate landscape in Vienna. πŸ‡¦πŸ‡Ή Vienna Β· 29 companies Β· Updated Nov 12, 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 | [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 | | 7 | [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 | | | 8 | [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 | | | 9 | [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 | | 10 | [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 | | 11 | [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 | | 12 | [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 | | | 13 | [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 | | 14 | [BAWAG Group](https://www.tamtam.ai/c/bawag-group) (bawaggroup.com)
Provides savings, payment, lending, leasing, investment, factoring, insurance products across multiple countries for retail and corporate customers. | Banking | πŸ‡¦πŸ‡Ή Vienna | 1,979 | 1883 | | 15 | [Kapsch Group](https://www.tamtam.ai/c/kapsch-group) (kapsch.net)
Global technology corporation with a focus on innovation and customer satisfaction, investing in research and development to bring new solutions to market | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 1,743 | | | 16 | [Addiko Bank AG](https://www.tamtam.ai/c/addiko-bank-ag) (addiko.com)
A consumer and SME specialist banking group in CSEE, offering unsecured personal loans, working capital loans, and payment services | Banking | πŸ‡¦πŸ‡Ή Vienna | 1,634 | | | 17 | [Kapsch TrafficCom AG](https://www.tamtam.ai/c/kapsch-trafficcom-ag) (kapsch.net)
Provider of innovative tolling and traffic management solutions, covering design, implementation, and operation for sustainable mobility worldwide. | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 1,345 | 2002 | | 18 | [VERBUND](https://www.tamtam.ai/c/verbund) (verbund.com)
A leading European utility company focused on renewable energy, primarily hydroelectricity, with operations in electricity generation, transmission, trading, and sales | Utilities | πŸ‡¦πŸ‡Ή Vienna | 1,336 | 1947 | | 19 | [SEMPERIT AG](https://www.tamtam.ai/c/semperit-ag) (semperitgroup.com)
Development, production, and marketing of specialized polymer and plastic products including hoses, conveyor belts, and construction profiles worldwide. | Chemical Manufacturing | πŸ‡¦πŸ‡Ή Vienna | 1,073 | 1824 | | 20 | [Kapsch TrafficCom North America](https://www.tamtam.ai/c/kapsch-trafficcom-north-america) (kapsch.net)
Provider of innovative tolling and traffic management solutions, covering design, implementation, and operation for sustainable mobility worldwide. | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 588 | 1892 | | 21 | [IMMOFINANZ](https://www.tamtam.ai/c/immofinanz) (cpi-europe.com)
Commercial real estate group focused on office and retail properties in eight core European markets Brands include STOP SHOP, VIVO!, and myhive Listed on Vienna and Warsaw stock exchanges | Real Estate | πŸ‡¦πŸ‡Ή Vienna | 121 | 1990 | | 22 | [dentsu Austria](https://www.tamtam.ai/c/dentsu-austria) (dentsu.com)
The company helps clients acquire, retain, and expand their best customers with top-notch services in Media, CRM, and Creativity, operating globally | Advertising Services | πŸ‡¦πŸ‡Ή Vienna | 106 | | | 23 | [iDWELL](https://www.tamtam.ai/c/idwell) (idwell.com)
SaaS CRM software for property management, integrating all communication channels in one platform, enabling easy work via web or mobile app | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 67 | 2017 | | 24 | [AUTO PLUS FahrzeugzubehΓΆr GmbH](https://www.tamtam.ai/c/auto-plus-fahrzeugzubehor-gmbh) (autoplus.at)
A supplier of stylish and practical automotive accessories, offering a wide range of products for various vehicle makes and models since 1989 | Motor Vehicle Manufacturing | πŸ‡¦πŸ‡Ή Vienna | 32 | 1989 | | 25 | [C-QUADRAT](https://www.tamtam.ai/c/c-quadrat) (c-quadrat.at)
Independent asset manager with bank license since 2003, offering innovative investment strategies for institutional investors, listed on Frankfurt and Vienna Stock Exchanges | Investment Management | πŸ‡¦πŸ‡Ή Vienna | 24 | | | 26 | [FoodNotify](https://www.tamtam.ai/c/foodnotify) (foodnotify.com)
The company provides a powerful F&B Management Platform that helps hospitality businesses streamline operations, reduce costs, and minimize food waste | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 22 | 2014 | | 27 | [Hyundai Γ–sterreich](https://www.tamtam.ai/c/hyundai-osterreich) (hyundai.at)
A leading automotive brand in Austria with over 25 years of success, rapid growth, innovative development, and a nationwide network of dealers | Motor Vehicle Manufacturing | πŸ‡¦πŸ‡Ή Vienna | 22 | 1991 | | 28 | [COMPAREX Austria GmbH](https://www.tamtam.ai/c/comparex-austria-gmbh) (softwareone.com)
A global provider of end-to-end software and cloud technology solutions, helping companies with strategy, procurement, management, and optimization | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 16 | | | 29 | [ACOS Digital](https://www.tamtam.ai/c/acos-digital) (acos.digital)
The company combines Marketing Consulting and Digital Marketing Services to help businesses succeed by developing strategies, implementing communication, and optimizing customer acquisition processes | Advertising Services | πŸ‡¦πŸ‡Ή Vienna | 10 | 2019 | ## 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 12, 2026. ## More company lists in Vienna - [The largest companies in Vienna](https://www.tamtam.ai/l/largest-companies-vienna) (580) - [Multinational companies in Vienna](https://www.tamtam.ai/l/multinational-companies-vienna) (228) - [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) - [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 - [Publicly traded companies in Austria](https://www.tamtam.ai/l/publicly-traded-companies-austria) (58) ## The same list elsewhere - [Publicly traded companies in the world](https://www.tamtam.ai/l/publicly-traded-companies-in-the-world) (11,535) - [Publicly traded companies in Europe](https://www.tamtam.ai/l/publicly-traded-companies-in-europe) (3,623) --- Source: https://www.tamtam.ai/l/publicly-traded-companies-vienna