The largest companies with in-house R&D in Vienna are primarily established industrial and manufacturing firms. They cover sectors such as refractory products, chemicals, and packaging, alongside specialized IT services.
RHI Magnesita, founded in 1834, is a global leader in refractory products. OMV focuses on sustainable fuels and chemicals, while Borealis specializes in polyolefin solutions. Frequentis provides communication systems for control centers. MM Packaging produces sustainable folding cartons, and Constantia Flexibles manufactures flexible packaging solutions. The data shows a concentration of companies in manufacturing and IT services, reflecting a diverse industrial base.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
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 | |||
| 2 | 6,877 | ||||
| 3 |
Borealisborealisgroup.com
A leading provider of sustainable polyolefin solutions, specializing in recycling and base chemicals, offering innovative material solutions for various industries globally |
2,769 | |||
| 4 |
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 | |||
| 5 |
ANDRITZ Hydroandritz.com
Global leader in supplying electromechanical equipment and services for hydropower stations, offering innovative solutions for new and existing plants, and comprehensive maintenance services |
2,545 | |||
| 6 |
MM Packagingmm.group
Global producer of sustainable folding cartons serving beauty, food, and healthcare sectors with fiber-based packaging across multiple continents. |
2,448 | |||
| 7 |
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 | |||
| 8 |
Constantia Flexiblescflex.com
Manufacture customized flexible packaging solutions for consumer and pharmaceutical industries with a strong focus on sustainability and innovation. |
1,994 | |||
| 9 |
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 | |||
| 10 |
Hochschule Campus Wien | University of Applied Scienceshcw.ac.at
FH Campus Wien is the largest university of applied sciences in Austria, offering over 60 bachelor's and master's programs, research projects, and continuing education opportunities |
1,435 | |||
| 11 |
Coveris Groupcoveris.com
A leading European packaging company manufacturing paper and plastic flexible packaging solutions for various products, focusing on sustainability and innovation |
1,414 | |||
| 12 |
Kapsch TrafficCom AGkapsch.net
Provider of innovative tolling and traffic management solutions, covering design, implementation, and operation for sustainable mobility worldwide. |
1,345 | |||
| 13 |
AGRANA Fruitagrana.com
Global leader in customized fruit preparations for dairy, ice cream, bakery, and food service markets with sustainable farming partnerships. |
1,294 | |||
| 14 |
Universit盲tsklinikum AKH Wienakhwien.at
The company is the largest hospital in Austria, treating around 60,000 inpatients and over 11 million outpatients annually with a diverse staff |
1,080 | |||
| 15 |
SEMPERIT AGsemperitgroup.com
Development, production, and marketing of specialized polymer and plastic products including hoses, conveyor belts, and construction profiles worldwide. |
1,073 | |||
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| 16 |
TTTech Autotttech-auto.com
Provides platform products and services focusing on system, safety, and security for the Software-Defined Vehicle, enabling OEMs to accelerate development and optimize performance. |
1,062 | |||
| 17 |
Gebauer & Grillergg-group.com
A global group producing high-quality cables for automotive and industrial sectors, offering innovative solutions and technical expertise with over 80 years of experience #WireUpTheFuture |
903 | |||
| 18 |
FH Technikum Wientechnikum-wien.at
Austria's largest technical university, providing practical and scientifically grounded bachelor's and master's degree programs, with a focus on eHealth, Embedded Systems, Renewable Energies and Tissue Engineering. |
865 | |||
| 19 |
Greentube GmbHgreentube.com
Global provider of omni-channel gaming content and solutions, including slots, table games, social casino gaming, and more Emphasizing innovation and quality worldwide |
846 | |||
| 20 |
TTTECHtttech.com
Provides safe, secure, networked computing platforms for industries like aviation, space, manufacturing, and energy, enabling autonomous systems through continuous innovation. |
825 | |||
| 21 |
WITTMANN Groupwittmann-group.com
Manufacturing injection molding machines, robots, and auxiliary equipment for plastic processing, specializing in energy-efficient technology and material handling for smart factory production cells. |
805 | |||
| 22 |
Bosch 脰sterreichbosch.at
A leading technology and services company focusing on solutions for connected living, improving people's quality of life worldwide through innovative products and services |
720 | |||
| 23 |
Plasser & Theurer Export von Bahnbaumaschinen G.m.b.H.plassertheurer.com
Manufacture and supply of diverse railway track maintenance machines, offering worldwide service, training, spare parts, and technical support. |
688 | |||
| 24 |
Vetmedunivetmeduni.ac.at
The company is the only veterinary education and research institution in Austria, focusing on animal health, preventive veterinary medicine, and societal issues related to animals |
664 | |||
| 25 |
APG Austrian Power Grid AGapg.at
The company is an independent electricity transmission system operator in Austria, responsible for integrating renewable energy and ensuring energy security at market prices |
624 | |||
| 26 |
AOP Healthaop-health.com
A European pioneer in integrated therapies for rare diseases and critical care, focusing on research, development, and global sales of innovative treatment solutions |
611 | |||
| 27 |
RISE - Research Industrial Systems Engineeringrise-world.com
Internationally recognized IT R&D provider offering consultancy, research & development in information technology, specializing in critical environments and large-scale projects |
516 | |||
| 28 |
bwinentaincareers.com
A global company within the digital entertainment industry, shaping the future of betting products with cutting edge technology and a talented team |
499 | |||
| 29 |
Kontron Transportationkontron.com
provides end-to-end communication solutions for railways including GSM-R, FRMCS, 5G networks, cybersecurity, and fare collection systems |
473 | |||
| 30 |
Schrack Seconet AGschrack-seconet.com
An Austrian high-tech company specializing in fire alarm systems, health care systems, and security solutions, with a focus on people |
441 | |||
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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 11, 2026.
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