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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
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. |
18,276 | |||
| 2 |
A1 Telekom Austria Groupa1.group
Leading digital services and communications provider in Central and Eastern Europe, enabling connectivity, digital business, and lifestyle for over 24 million users. |
12,320 | |||
| 3 |
RHI Magnesitarhimagnesita.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 |
12,000 | |||
| 4 |
Mondi Grouplinktr.ee
Global integrated company managing forests, producing pulp, paper, plastic films, and manufacturing sustainable industrial and consumer packaging solutions. |
9,160 | |||
| 5 |
UNIQA Insurance Groupuniqagroup.com
Insurance provider for private and corporate clients across Austria and Central and Eastern Europe, offering risk protection and community support. |
8,256 | |||
| 6 | 6,877 | ||||
| 7 |
PORR Groupporr-group.com
Large European construction company specializing in building, civil engineering, and infrastructure services across multiple countries and international markets. |
6,454 | |||
| 8 |
Erste Grouperstegroup.com
A leading financial institute in Central and Eastern Europe, providing banking services to millions of customers, promoting career growth and innovation |
5,859 | |||
| 9 |
Raiffeisen Bank International AGrbinternational.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 |
5,107 | |||
| 10 |
DO & CO AGdoco.com
An Austrian company offering gourmet entertainment worldwide through Airline Catering, Event Catering, and Restaurants, dedicated to delivering exceptional quality and service |
4,937 | |||
| 11 |
wienerbergerwienerberger.com
A leading provider of innovative solutions for the building envelope, infrastructure, and water and energy management, focusing on sustainability and affordability |
4,014 | |||
| 12 |
Frequentisfrequentis.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 |
2,573 | |||
| 13 |
AGRANA Groupagrana.com
Adds value to agricultural commodities for industrial products globally. Leaders in fruit preparations, starch products, and sugar across Europe, Asia, and America. |
2,211 | |||
| 14 |
BAWAG Groupbawaggroup.com
Provides savings, payment, lending, leasing, investment, factoring, insurance products across multiple countries for retail and corporate customers. |
1,979 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 15 |
Kapsch Groupkapsch.net
Global technology corporation with a focus on innovation and customer satisfaction, investing in research and development to bring new solutions to market |
1,743 | |||
| 16 |
Addiko Bank AGaddiko.com
A consumer and SME specialist banking group in CSEE, offering unsecured personal loans, working capital loans, and payment services |
1,634 | |||
| 17 |
Kapsch TrafficCom AGkapsch.net
Provider of innovative tolling and traffic management solutions, covering design, implementation, and operation for sustainable mobility worldwide. |
1,345 | |||
| 18 |
VERBUNDverbund.com
A leading European utility company focused on renewable energy, primarily hydroelectricity, with operations in electricity generation, transmission, trading, and sales |
1,336 | |||
| 19 |
SEMPERIT AGsemperitgroup.com
Development, production, and marketing of specialized polymer and plastic products including hoses, conveyor belts, and construction profiles worldwide. |
1,073 | |||
| 20 |
Kapsch TrafficCom North Americakapsch.net
Provider of innovative tolling and traffic management solutions, covering design, implementation, and operation for sustainable mobility worldwide. |
588 | |||
| 21 |
IMMOFINANZcpi-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 |
121 | |||
| 22 |
dentsu Austriadentsu.com
The company helps clients acquire, retain, and expand their best customers with top-notch services in Media, CRM, and Creativity, operating globally |
106 | |||
| 23 |
iDWELLidwell.com
SaaS CRM software for property management, integrating all communication channels in one platform, enabling easy work via web or mobile app |
67 | |||
| 24 |
AUTO PLUS Fahrzeugzubeh枚r GmbHautoplus.at
A supplier of stylish and practical automotive accessories, offering a wide range of products for various vehicle makes and models since 1989 |
32 | |||
| 25 |
C-QUADRATc-quadrat.at
Independent asset manager with bank license since 2003, offering innovative investment strategies for institutional investors, listed on Frankfurt and Vienna Stock Exchanges |
24 | |||
| 26 |
FoodNotifyfoodnotify.com
The company provides a powerful F&B Management Platform that helps hospitality businesses streamline operations, reduce costs, and minimize food waste |
22 | |||
| 27 |
Hyundai 脰sterreichhyundai.at
A leading automotive brand in Austria with over 25 years of success, rapid growth, innovative development, and a nationwide network of dealers |
22 | |||
| 28 |
COMPAREX Austria GmbHsoftwareone.com
A global provider of end-to-end software and cloud technology solutions, helping companies with strategy, procurement, management, and optimization |
16 | |||
| 29 |
ACOS Digitalacos.digital
The company combines Marketing Consulting and Digital Marketing Services to help businesses succeed by developing strategies, implementing communication, and optimizing customer acquisition processes |
10 | |||
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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 580
- Multinational companies in Vienna 228
- Critical infrastructure operators in Vienna 73
- Financial services firms in Vienna 71
- IT Services and IT Consulting companies in Vienna 61
- Companies with in-house R&D in Vienna 60
- SaaS companies in Vienna 51
- Software Development companies in Vienna 49
- Companies with a mobile app in Vienna 48
- Public sector organisations in Vienna 48
- Manufacturers in Vienna 48
- Financial Services companies in Vienna 47
- Corporate groups and holding companies in Vienna 47
- Retail chains in Vienna 41
- IT services companies in Vienna 37
- Education providers in Vienna 36
- Professional services firms in Vienna 35
- Hardware manufacturers in Vienna 27
- Consulting firms in Vienna 25
- Banking companies in Vienna 25