# Companies with in-house R&D headquartered in Austria

Tamtam tracks 259 companies with in-house R&D headquartered in Austria. This list ranks the 100 largest by number of employees on LinkedIn, led by ALPLA Group, STRABAG and ANDRITZ. Their median headcount is 1,345. Half of them were founded in 1959 or later. The most common headquarters are Vienna (26), Graz (8) and Linz (5).

These Austrian companies with in-house R&D are primarily large, established firms in manufacturing, construction, and technology. Key players include ALPLA Group, a global producer of plastic packaging; STRABAG, a construction technology group; ANDRITZ, a supplier of industrial plants and equipment; and AVL, a mobility technology company specializing in automotive development. Other notable firms are RHI Magnesita in refractory products and OMV in sustainable fuels and chemicals. These companies demonstrate a strong focus on industrial innovation and engineering.

A notable pattern among these companies is their diverse geographical distribution across Austria, with significant clusters in Graz and Vienna, but also strong presences in locations like Hard, Spittal/Drau, and Salzburg. Their founding dates span from the 19th century, such as STRABAG (1835) and RHI Magnesita (1834), to the mid-20th century, indicating a long-standing tradition of industrial development and continuous innovation.

🇦🇹 Austria · 100 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [ALPLA Group](https://www.tamtam.ai/c/alpla-group) (alpla.com)<br>Produces high-quality plastic packaging globally for food, beverage, pharmaceutical, and beauty industries with innovative, sustainable solutions and career opportunities. | Packaging and Containers Manufacturing | 🇦🇹 Hard | 23,000 | 1955 |
| 2 | [STRABAG](https://www.tamtam.ai/c/strabag) (karriere.strabag.com)<br>Innovative and sustainable construction technology group with 79,000 employees worldwide, specializing in building, road, bridge, and tunnel construction, project development, and facility management | Construction | 🇦🇹 Spittal/Drau | 22,209 | 1835 |
| 3 | [ANDRITZ](https://www.tamtam.ai/c/andritz) (andritz.com)<br>A global supplier of plants, equipment, and services for various industries including hydropower, pulp & paper, metalworking, and solid/liquid separation | Machinery Manufacturing | 🇦🇹 Graz | 14,107 |  |
| 4 | [RHI Magnesita](https://www.tamtam.ai/c/rhi-magnesita) (rhimagnesita.com)<br>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 | 🇦🇹 Vienna | 12,000 | 1834 |
| 5 | [AVL](https://www.tamtam.ai/c/avl) (avl.com)<br>Leading global mobility technology company specializing in development, simulation, and testing solutions for automotive, rail, marine, and energy industries, focusing on electrification, software, AI, and automation | Motor Vehicle Manufacturing | 🇦🇹 Graz | 11,000 |  |
| 6 | [BENTELER Group](https://www.tamtam.ai/c/benteler-group) (benteler.com)<br>Development and production of safety-related automotive components, steel tubes, and systems for energy and mechanical engineering sectors worldwide. | Motor Vehicle Manufacturing | 🇦🇹 Salzburg | 9,318 | 1876 |
| 7 | [OMV](https://www.tamtam.ai/c/omv) (omv.com)<br>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 | 🇦🇹 Vienna | 6,877 | 1956 |
| 8 | [ams OSRAM](https://www.tamtam.ai/c/ams-osram) (ams-osram.com)<br>Global leader in light and sensor technologies, specializing in LEDs, lasers, and imaging sensors for automotive, medical, and industrial sectors. | Semiconductor Manufacturing | 🇦🇹 Unterpremstätten | 6,876 |  |
| 9 | [Fronius](https://www.tamtam.ai/c/fronius-osterreich) (fronius.com)<br>Manufacturing battery charging systems, welding technology, and solar electronics for various industrial and residential applications. Providing advanced power solutions. | Appliances, Electrical, and Electronics Manufacturing | 🇦🇹 Wels | 5,001 | 1945 |
| 10 | [EGGER Group](https://www.tamtam.ai/c/egger-group) (egger.com)<br>Family company producing wood-based materials and timber globally, supplying furniture, flooring, and DIY markets with diverse products for various private and public spaces. | Wood Product Manufacturing | 🇦🇹 Sankt Johann in Tirol | 3,882 |  |
| 11 | [Universität Innsbruck](https://www.tamtam.ai/c/universitat-innsbruck) (uibk.ac.at)<br>A renowned Austrian university founded in 1669, known for its research and education, with four Nobel laureates among its researchers | Higher Education | 🇦🇹 Innsbruck | 3,623 |  |
| 12 | [KNAPP](https://www.tamtam.ai/c/knapp) (knapp.com)<br>Global provider of intelligent automation solutions for intralogistics and manufacturing across healthcare, retail, industry, and service sectors worldwide. | Transportation, Logistics, Supply Chain and Storage | 🇦🇹 Hart bei Graz | 3,500 | 1952 |
| 13 | [AT&S](https://www.tamtam.ai/c/at-and-s) (ats.net)<br>Manufacturing high-end printed circuit boards and IC substrates for various industries with global presence and leading-edge technologies | Appliances, Electrical, and Electronics Manufacturing | 🇦🇹 | 3,414 | 1987 |
| 14 | [Doka](https://www.tamtam.ai/c/doka) (doka.com)<br>A global leader providing innovative formwork, scaffolding solutions, and services for construction projects worldwide with a strong distribution network | Construction | 🇦🇹 Amstetten | 3,290 | 1958 |
| 15 | [TGW Logistics](https://www.tamtam.ai/c/tgw-logistics) (tgw-group.com)<br>Designing, implementing, and maintaining automated fulfillment centers using mechatronics, robotics, and advanced software for efficient warehouse logistics. | Automation Machinery Manufacturing | 🇦🇹 Marchtrenk | 3,146 | 1969 |
| 16 | [RINGANA](https://www.tamtam.ai/c/ringana) (ringana.com)<br>This company produces fresh cosmetics and supplements from natural ingredients, prioritizing potent antioxidants and avoiding synthetic preservatives and unnecessary additives | Personal Care Product Manufacturing | 🇦🇹 St. Johann in der Haide | 2,891 | 1996 |
| 17 | [University of Graz](https://www.tamtam.ai/c/university-of-graz) (uni-graz.at)<br>A creative university generating knowledge, addressing social issues, offering solutions, and guiding students to tackle global challenges in biosciences and climate research | Research Services | 🇦🇹 Graz | 2,889 |  |
| 18 | [Greiner](https://www.tamtam.ai/c/greiner) (greiner.com)<br>A global supplier of plastics and foam solutions with diverse divisions in packaging, medical technology, and more, boasting 11,000+ employees worldwide | Plastics Manufacturing | 🇦🇹 Kremsmünster | 2,876 | 1868 |
| 19 | [Blum Group](https://www.tamtam.ai/c/blum-group) (blum.com)<br>Manufacturing furniture fittings including lift systems, hinges, drawers, and pocket systems for global customers, with plants and production sites worldwide | Furniture and Home Furnishings Manufacturing | 🇦🇹 Höchst | 2,791 |  |
| 20 | [Borealis](https://www.tamtam.ai/c/borealis) (borealisgroup.com)<br>A leading provider of sustainable polyolefin solutions, specializing in recycling and base chemicals, offering innovative material solutions for various industries globally | Chemical Manufacturing | 🇦🇹 Vienna | 2,769 | 1994 |
| 21 | [BWT Group](https://www.tamtam.ai/c/bwt-group) (bwt.com)<br>European leader in water technology, providing innovative treatment systems and services for various industries, focusing on safety, hygiene, health, and sustainability | Holding Companies | 🇦🇹 Mondsee | 2,733 |  |
| 22 | [ENGEL](https://www.tamtam.ai/c/engel) (engelglobal.com)<br>Global leader in injection moulding machines and automation, producing plastic parts for various industries worldwide, with a focus on innovation and customer benefit | Machinery Manufacturing | 🇦🇹 Schwertberg | 2,700 | 1945 |
| 23 | [Frequentis](https://www.tamtam.ai/c/frequentis) (frequentis.com)<br>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 | 🇦🇹 Vienna | 2,573 |  |
| 24 | [ANDRITZ Hydro](https://www.tamtam.ai/c/andritz-hydro) (andritz.com)<br>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 | 🇦🇹 Vienna | 2,545 | 1805 |
| 25 | [MM Packaging](https://www.tamtam.ai/c/mm-packaging) (mm.group)<br>Global producer of sustainable folding cartons serving beauty, food, and healthcare sectors with fiber-based packaging across multiple continents. | Packaging and Containers Manufacturing | 🇦🇹 Vienna | 2,448 |  |
| 26 | [Lenzing Group](https://www.tamtam.ai/c/lenzing-group) (lenzing.com)<br>Lenzing specializes in creating innovative solutions from natural wood fibers for various industries, focusing on sustainability and value creation | Chemical Manufacturing | 🇦🇹 Lenzing | 2,443 |  |
| 27 | [KTM AG](https://www.tamtam.ai/c/ktm-ag) (career.ktm.com)<br>Focus on hiring motivated employees who value teamwork, capability, and shared philosophy regardless of experience, education, or background. | Motor Vehicle Manufacturing | 🇦🇹 Mattighofen | 2,430 | 1953 |
| 28 | [SWARCO](https://www.tamtam.ai/c/swarco) (swarco.com)<br>A traffic technology corporation that improves travel safety and efficiency through products, systems, and solutions for road management, parking, and public transport | Paint, Coating, and Adhesive Manufacturing | 🇦🇹 Wattens | 2,290 | 1969 |
| 29 | [Plansee Group](https://www.tamtam.ai/c/plansee-group) (plansee-group.com)<br>Specializing in processing molybdenum and tungsten, this company produces tools, semi-finished products, and components using these materials while ensuring a steady supply of raw materials | Metal Treatments | 🇦🇹 Reutte | 2,276 |  |
| 30 | [Hirschmann Automotive](https://www.tamtam.ai/c/hirschmann-automotive) (hirschmann-automotive.com)<br>The company specializes in producing connectors, cable assemblies, sensors, and more for the automotive industry, prioritizing safety, innovation, and reliability | Motor Vehicle Manufacturing | 🇦🇹 Rankweil | 2,253 | 1959 |
| 31 | [Johannes Kepler Universität Linz](https://www.tamtam.ai/c/johannes-kepler-universitat-linz) (jku.at)<br>The university in Linz offers modern academic programs in social science, economics, law, engineering, and medicine with a focus on research and international partnerships | Higher Education | 🇦🇹 Linz | 2,223 | 1966 |
| 32 | [ams AG](https://www.tamtam.ai/c/ams-ag) (ams-osram.com)<br>Global leader in intelligent sensors, illumination, and visualization technologies enhancing safety, simplicity, and efficiency in everyday life. | Semiconductor Manufacturing | 🇦🇹 Premstätten | 2,221 | 1981 |
| 33 | [AGRANA Group](https://www.tamtam.ai/c/agrana-group) (agrana.com)<br>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 | 🇦🇹 Vienna | 2,211 | 1988 |
| 34 | [ZKW](https://www.tamtam.ai/c/zkw) (zkw-group.com)<br>Specializing in premium lighting and electronics for automotive industry, we develop innovative LED systems and modules for global automotive manufacturers | Motor Vehicle Manufacturing | 🇦🇹 Wieselburg | 2,210 | 1938 |
| 35 | [MED-EL](https://www.tamtam.ai/c/med-el) (medel.com)<br>Development and manufacturing of advanced hearing implant solutions and medical devices, serving recipients in over 178 countries globally. | Medical Equipment Manufacturing | 🇦🇹 Innsbruck | 2,130 | 1989 |
| 36 | [Constantia Flexibles](https://www.tamtam.ai/c/constantia-flexibles) (cflex.com)<br>Manufacture customized flexible packaging solutions for consumer and pharmaceutical industries with a strong focus on sustainability and innovation. | Packaging and Containers Manufacturing | 🇦🇹 Vienna | 1,994 | 1912 |
| 37 | [NOVOMATIC](https://www.tamtam.ai/c/novomatic) (novomatic.com)<br>International gaming technology producer and operator with a diverse product portfolio, spanning land-based gaming, online/mobile solutions, lottery, sports betting, and ancillary services | Gambling Facilities and Casinos | 🇦🇹 Gumpoldskirchen | 1,977 | 1980 |
| 38 | [B&R Industrial Automation](https://www.tamtam.ai/c/b-and-r-industrial-automation) (br-automation.com)<br>Providing comprehensive robotics, automation, and software solutions with a focus on innovation, customer collaboration, and sustainable manufacturing. | Automation Machinery Manufacturing | 🇦🇹 Austria | 1,963 | 1979 |
| 39 | [voestalpine Railway Systems](https://www.tamtam.ai/c/voestalpine-railway-systems) (voestalpine.com)<br>Global market leader in railway infrastructure systems solutions, offering top-quality products, logistics, and services for rails, turnouts, fastening systems, signaling technology, and monitoring applications | Railroad Equipment Manufacturing | 🇦🇹 Leoben | 1,880 |  |
| 40 | [HEAD](https://www.tamtam.ai/c/head) (head.com)<br>A global leader in designing and manufacturing premium sports equipment and apparel, collaborating closely with world-class athletes for high-performance products | Sporting Goods Manufacturing | 🇦🇹 Kennelbach | 1,839 | 1950 |
| 41 | [KLINGER Holding](https://www.tamtam.ai/c/klinger-holding) (klinger-international.com)<br>Global leader in industrial sealings, fluid control, and fluid monitoring systems, providing high-quality gaskets and valves for various industries worldwide | Industrial Machinery Manufacturing | 🇦🇹 Gumpoldskirchen | 1,770 | 1886 |
| 42 | [voestalpine](https://www.tamtam.ai/c/voestalpine) (voestalpine.com)<br>Global steel and technology group offering premium products and solutions for automotive, consumer goods, aerospace, oil & gas, and railway industries Committed to decarbonizing steel production | Mining | 🇦🇹 Linz | 1,753 |  |
| 43 | [Kapsch Group](https://www.tamtam.ai/c/kapsch-group) (kapsch.net)<br>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 | 🇦🇹 Vienna | 1,743 |  |
| 44 | [Rosenbauer Group](https://www.tamtam.ai/c/rosenbauer-group) (rosenbauer.com)<br>provider of fire protection vehicles, digital applications, personal and technical equipment for emergency and disaster control worldwide | Motor Vehicle Manufacturing | 🇦🇹 Leonding | 1,697 | 1866 |
| 45 | [Zumtobel Group](https://www.tamtam.ai/c/zumtobel-group) (z.lighting)<br>An international lighting group with innovative solutions and components, focusing on sustainability and cultural diversity, impacting people, nature, and innovation worldwide | Appliances, Electrical, and Electronics Manufacturing | 🇦🇹 Dornbirn | 1,619 | 1950 |
| 46 | [Miba Group](https://www.tamtam.ai/c/miba-group) (miba.com)<br>Development and production of critical components for efficient, sustainable energy generation, transmission, storage, and use across various industries worldwide. | Manufacturing | 🇦🇹 Laakirchen | 1,538 |  |
| 47 | [Hochschule Campus Wien \| University of Applied Sciences](https://www.tamtam.ai/c/hochschule-campus-wien-university-of-applied-sciences) (hcw.ac.at)<br>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 | Higher Education | 🇦🇹 Vienna | 1,435 |  |
| 48 | [Coveris Group](https://www.tamtam.ai/c/coveris-group) (coveris.com)<br>A leading European packaging company manufacturing paper and plastic flexible packaging solutions for various products, focusing on sustainability and innovation | Packaging and Containers Manufacturing | 🇦🇹 Vienna | 1,414 | 2013 |
| 49 | [ZETA](https://www.tamtam.ai/c/zeta-lieboch) (zeta.com)<br>Global end-to-end solution provider specializing in biopharmaceutical systems design, construction, automation, digitization, and qualification, with a focus on sustainability and innovation | Pharmaceutical Manufacturing | 🇦🇹 Lieboch | 1,380 | 1989 |
| 50 | [Kapsch TrafficCom AG](https://www.tamtam.ai/c/kapsch-trafficcom-ag) (kapsch.net)<br>Provider of innovative tolling and traffic management solutions, covering design, implementation, and operation for sustainable mobility worldwide. | IT Services and IT Consulting | 🇦🇹 Vienna | 1,345 | 2002 |
| 51 | [FH Joanneum](https://www.tamtam.ai/c/fh-joanneum) (fh-joanneum.at)<br>This company offers practical and interdisciplinary academic programs, conducts applied research projects, provides international opportunities, and prepares students for successful careers | Higher Education | 🇦🇹 Graz | 1,342 | 1995 |
| 52 | [MAGNA STEYR Fahrzeugtechnik AG](https://www.tamtam.ai/c/magna-steyr-fahrzeugtechnik-ag) (magna.com)<br>Global engineering and manufacturing partner for OEMs, headquartered in Graz, Austria, offering brand-independent solutions | Motor Vehicle Manufacturing | 🇦🇹 Graz | 1,302 |  |
| 53 | [AGRANA Fruit](https://www.tamtam.ai/c/agrana-fruit) (agrana.com)<br>Global leader in customized fruit preparations for dairy, ice cream, bakery, and food service markets with sustainable farming partnerships. | Food and Beverage Manufacturing | 🇦🇹 Vienna | 1,294 | 2003 |
| 54 | [Sony DADC](https://www.tamtam.ai/c/sony-dadc) (sonydadc.com)<br>Manufacturing optical storage media and exploring new technology fields beyond existing business to innovate and expand product offerings. | Entertainment Providers | 🇦🇹 Thalgau | 1,229 | 1983 |
| 55 | [FACC AG](https://www.tamtam.ai/c/facc-ag) (facc.com)<br>Global aerospace leader specializing in design, development, and production of advanced lightweight systems with technology on board every other aircraft taking off worldwide | Aviation and Aerospace Component Manufacturing | 🇦🇹 Ried im Innkreis | 1,221 | 1989 |
| 56 | [S&T AG \| S&T Group](https://www.tamtam.ai/c/s-and-t-ag-s-and-t-group) (kontron.com)<br>A growing IoT technology group offering smart solutions for industries worldwide, helping businesses with digital transformation through innovative technologies | Automation Machinery Manufacturing | 🇦🇹 A-4020 Linz | 1,216 |  |
| 57 | [Anton Paar](https://www.tamtam.ai/c/anton-paar) (anton-paar.com)<br>A global high-tech company specializing in laboratory instruments, process measurement technology, automation solutions, and high-precision parts production for various industries worldwide | Measuring and Control Instrument Manufacturing | 🇦🇹 Graz | 1,211 | 1922 |
| 58 | [voestalpine Steel Division](https://www.tamtam.ai/c/voestalpine-steel-division) (voestalpine.com)<br>A pioneering steel manufacturer dedicated to sustainable, low-carbon production and innovative technologies for a clean and livable future | Primary Metal Manufacturing | 🇦🇹 Linz | 1,140 |  |
| 59 | [USTP – University of Applied Sciences St. Pölten](https://www.tamtam.ai/c/ustp-university-of-applied-sciences-st-polten) (fhstp.ac.at)<br>Innovative university offering academic education in digital business, media, computer science, rail technology, health sciences, and social sciences with interdisciplinary collaboration and research focus | Higher Education | 🇦🇹 St. Pölten | 1,134 |  |
| 60 | [University of Applied Sciences Upper Austria](https://www.tamtam.ai/c/university-of-applied-sciences-upper-austria) (fh-ooe.at)<br>The company offers university-level teaching and research in various fields, emphasizing practice-orientation, innovation, and collaboration with partners for growth and sustainability | Higher Education | 🇦🇹 Wels | 1,089 | 1994 |
| 61 | [Universitätsklinikum AKH Wien](https://www.tamtam.ai/c/universitatsklinikum-akh-wien) (akhwien.at)<br>The company is the largest hospital in Austria, treating around 60,000 inpatients and over 11 million outpatients annually with a diverse staff | Hospitals and Health Care | 🇦🇹 Vienna | 1,080 | 1693 |
| 62 | [SEMPERIT AG](https://www.tamtam.ai/c/semperit-ag) (semperitgroup.com)<br>Development, production, and marketing of specialized polymer and plastic products including hoses, conveyor belts, and construction profiles worldwide. | Chemical Manufacturing | 🇦🇹 Vienna | 1,073 | 1824 |
| 63 | [TTTech Auto](https://www.tamtam.ai/c/tttech-auto) (tttech-auto.com)<br>Provides platform products and services focusing on system, safety, and security for the Software-Defined Vehicle, enabling OEMs to accelerate development and optimize performance. | Software Development | 🇦🇹 Vienna | 1,062 | 2018 |
| 64 | [Greiner Packaging](https://www.tamtam.ai/c/greiner-packaging) (greiner-gpi.com)<br>Development, production, and trading of packaging, plastics, and machinery, alongside management and administration of associated companies. | Packaging and Containers Manufacturing | 🇦🇹 Sattledt | 1,050 |  |
| 65 | [OMICRON electronics](https://www.tamtam.ai/c/omicron-electronics) (omicronenergy.com)<br>Development and support of innovative testing and cybersecurity solutions for medium- and high-voltage electric power systems worldwide. | Appliances, Electrical, and Electronics Manufacturing | 🇦🇹 Klaus | 1,040 | 1984 |
| 66 | [Tyrolit Group](https://www.tamtam.ai/c/tyrolit-group) (tyrolit.group)<br>Manufactures grinding, dressing tools, construction industry systems. Offers tailored and standard grinding solutions globally, drawing on over a century of experience. | Industrial Machinery Manufacturing | 🇦🇹 Schwaz | 991 |  |
| 67 | [ANDRITZ Pulp and Paper](https://www.tamtam.ai/c/andritz-pulp-and-paper) (andritz.com)<br>A leading supplier of technology and services to the pulp and paper industry, focusing on equipment life-cycle support and optimizing performance for long-term success | Machinery Manufacturing | 🇦🇹 Graz | 985 |  |
| 68 | [Fachhochschule Salzburg](https://www.tamtam.ai/c/fachhochschule-salzburg) (fh-salzburg.ac.at)<br>Offering a wide range of interdisciplinary bachelor and master programs tailored to the needs of the labor market, including technology, business, healthcare, and design fields | Higher Education | 🇦🇹 Puch bei Salzburg | 946 | 1995 |
| 69 | [Plansee](https://www.tamtam.ai/c/plansee) (plansee.com)<br>Manufacture high-performance molybdenum and tungsten components for industries like electronics, automotive, medical, and aerospace with innovative, durable materials. | Metalworking Machinery Manufacturing | 🇦🇹 Reutte | 937 | 1921 |
| 70 | [EV Group](https://www.tamtam.ai/c/ev-group) (evgroup.com)<br>Leading supplier of equipment and process solutions for semiconductor, MEMS, compound semiconductors, power devices, and nanotechnology devices with global customer support | Semiconductor Manufacturing | 🇦🇹 St. Florian am Inn | 924 | 1980 |
| 71 | [Gebauer & Griller](https://www.tamtam.ai/c/gebauer-and-griller) (gg-group.com)<br>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 | Motor Vehicle Manufacturing | 🇦🇹 Vienna | 903 | 1940 |
| 72 | [SKIDATA](https://www.tamtam.ai/c/skidata) (skidata.com)<br>A global leader in access solutions, connecting physical and digital worlds with seamless, secure, and tailored experiences for users worldwide | IT Services and IT Consulting | 🇦🇹 Grödig | 871 |  |
| 73 | [FH Technikum Wien](https://www.tamtam.ai/c/fh-technikum-wien) (technikum-wien.at)<br>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. | Professional Training and Coaching | 🇦🇹 Vienna | 865 | 1994 |
| 74 | [KEBA Group](https://www.tamtam.ai/c/keba-group) (keba.com)<br>An international company founded in 1968, specializing in Industrial Automation, Banking and Service Automation, and Energy Automation, with a focus on technological innovations and quality standards | Automation Machinery Manufacturing | 🇦🇹 Linz | 854 | 1968 |
| 75 | [Greentube GmbH](https://www.tamtam.ai/c/greentube-gmbh) (greentube.com)<br>Global provider of omni-channel gaming content and solutions, including slots, table games, social casino gaming, and more Emphasizing innovation and quality worldwide | Computer Games | 🇦🇹 Vienna | 846 | 1998 |
| 76 | [Kepler Universitätsklinikum GmbH](https://www.tamtam.ai/c/kepler-universitatsklinikum-gmbh) (kepleruniklinikum.at)<br>A leading university hospital in Austria with 6,700 employees, offering a wide range of medical services, specialized centers, and comprehensive training programs | Hospitals and Health Care | 🇦🇹 Linz | 833 | 2015 |
| 77 | [Universität für Weiterbildung Krems](https://www.tamtam.ai/c/universitat-fur-weiterbildung-krems) (donau-uni.ac.at)<br>A leading provider of continuing education for working professionals, offering exclusive master's programs and short courses in five areas of study | Higher Education | 🇦🇹 Krems | 830 | 1994 |
| 78 | [TTTECH](https://www.tamtam.ai/c/tttech) (tttech.com)<br>Provides safe, secure, networked computing platforms for industries like aviation, space, manufacturing, and energy, enabling autonomous systems through continuous innovation. | Computer Networking Products | 🇦🇹 Vienna | 825 |  |
| 79 | [IMC Krems University of Applied Sciences](https://www.tamtam.ai/c/imc-krems-university-of-applied-sciences) (imc.ac.at)<br>A university specializing in business, digitalization, engineering, health, and life sciences, offering internationally focused degree programs with a global alumni network | Higher Education | 🇦🇹 Krems an der Donau | 821 | 1994 |
| 80 | [WITTMANN Group](https://www.tamtam.ai/c/wittmann-group) (wittmann-group.com)<br>Manufacturing injection molding machines, robots, and auxiliary equipment for plastic processing, specializing in energy-efficient technology and material handling for smart factory production cells. | Machinery Manufacturing | 🇦🇹 Vienna | 805 | 1976 |
| 81 | [Montanuniversität Leoben](https://www.tamtam.ai/c/montanuniversitat-leoben) (unileoben.ac.at)<br>A higher education institution located in Leoben, Austria, providing academic programs and research opportunities in various fields | Higher Education | 🇦🇹 Leoben | 798 | 1840 |
| 82 | [MAGNA Powertrain / Engineering Center Steyr GmbH & Co KG](https://www.tamtam.ai/c/magna-powertrain-engineering-center-steyr-gmbh-and-co-kg) (engineering.mpt.magna.com)<br>An internationally recognized engineering supplier specializing in propulsion and vehicle engineering, simulation services, technical software, prototyping, and testing for various vehicle types | Motor Vehicle Manufacturing | 🇦🇹 Sankt Valentin | 797 |  |
| 83 | [Hochschule Burgenland](https://www.tamtam.ai/c/hochschule-burgenland) (hochschule-burgenland.at)<br>A leading Austrian university offering practical Bachelor's and Master's programs in Business, IT, Energy & Environment, Health, and Social sciences, focusing on innovation and personalized student support | Higher Education | 🇦🇹 Eisenstadt | 796 |  |
| 84 | [Amiblu](https://www.tamtam.ai/c/amiblu) (amiblu.com)<br>Specializing in GRP pipes and fittings, the company offers solutions for water and sewer challenges worldwide, with a focus on durability and innovation | Construction | 🇦🇹 Klagenfurt | 795 |  |
| 85 | [Zumtobel Lighting](https://www.tamtam.ai/c/zumtobel-lighting) (zumtobel.at)<br>Design and produce exceptional lighting solutions combining timeless design, technical excellence, craftsmanship, and efficient performance for inspiring environments. | Appliances, Electrical, and Electronics Manufacturing | 🇦🇹 Dornbirn | 782 | 1950 |
| 86 | [FACHHOCHSCHULE KÄRNTEN](https://www.tamtam.ai/c/fachhochschule-karnten) (fh-kaernten.at)<br>Offering 34 study programs in civil engineering, architecture, engineering, management, healthcare, and social issues, educating almost 2000 students with high industry demand for graduates | Higher Education | 🇦🇹 Villach | 779 | 1995 |
| 87 | [KTM Bike Industries](https://www.tamtam.ai/c/ktm-bike-industries) (ktm-bikes.at)<br>Manufacturer of high-end bikes including city, trekking, mountain, road, kid, and eBikes, distributing globally with a focus on quality and advanced technologies | Sporting Goods Manufacturing | 🇦🇹 Mattighofen | 763 |  |
| 88 | [Tridonic](https://www.tamtam.ai/c/tridonic) (tridonic.com)<br>A world-leading supplier of lighting technology, Tridonic offers intelligent hardware and software for energy-efficient lighting solutions, enabling innovative business models | Appliances, Electrical, and Electronics Manufacturing | 🇦🇹 Dornbirn | 761 | 1956 |
| 89 | [W&H Group](https://www.tamtam.ai/c/w-and-h-group) (wh.com)<br>Manufacture high-tech medical products and innovations for dental, medical, and veterinary applications with focus on health and sustainability. | Medical Equipment Manufacturing | 🇦🇹 Bürmoos | 724 | 1890 |
| 90 | [Bosch Österreich](https://www.tamtam.ai/c/bosch-osterreich) (bosch.at)<br>A leading technology and services company focusing on solutions for connected living, improving people's quality of life worldwide through innovative products and services | Software Development | 🇦🇹 Vienna | 720 | 1899 |
| 91 | [Plasser & Theurer Export von Bahnbaumaschinen G.m.b.H.](https://www.tamtam.ai/c/plasser-and-theurer-export-von-bahnbaumaschinen-g-m-b-h) (plassertheurer.com)<br>Manufacture and supply of diverse railway track maintenance machines, offering worldwide service, training, spare parts, and technical support. | Machinery Manufacturing | 🇦🇹 Vienna | 688 | 1953 |
| 92 | [Vetmeduni](https://www.tamtam.ai/c/vetmeduni) (vetmeduni.ac.at)<br>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 | Higher Education | 🇦🇹 Vienna | 664 | 1765 |
| 93 | [Greiner Bio-One International](https://www.tamtam.ai/c/greiner-bio-one-international) (gbo.com)<br>Development and distribution of innovative plastic products for laboratories, hospitals, and research, focusing on preanalytics and bioscience solutions. | Medical Equipment Manufacturing | 🇦🇹 Kremsmünster | 660 | 1868 |
| 94 | [voestalpine BÖHLER Edelstahl GmbH & Co KG](https://www.tamtam.ai/c/voestalpine-bohler-edelstahl-gmbh-and-co-kg) (bohler-edelstahl.com)<br>Specializing in top-quality specialty steels, we provide innovative solutions for leading companies in forward-thinking industries, pushing the boundaries of what is possible | Mining | 🇦🇹 Kapfenberg | 638 |  |
| 95 | [NovaTaste](https://www.tamtam.ai/c/novataste) (novataste.com)<br>Development and production of customized solutions for meat, sausage, fish industries, plus spices, vinegars, oils for gastronomy. | Food and Beverage Manufacturing | 🇦🇹 Salzburg | 637 |  |
| 96 | [ASTA](https://www.tamtam.ai/c/asta) (astagroup.com)<br>A global leader in producing high-quality copper components for high-voltage industries, energy transition, and sustainability, with a focus on innovation and circular economy concepts | Energy Technology | 🇦🇹 Oed | 628 | 1814 |
| 97 | [APG Austrian Power Grid AG](https://www.tamtam.ai/c/apg-austrian-power-grid-ag) (apg.at)<br>The company is an independent electricity transmission system operator in Austria, responsible for integrating renewable energy and ensuring energy security at market prices | Utilities | 🇦🇹 Vienna | 624 |  |
| 98 | [Stoelzle Glass Group](https://www.tamtam.ai/c/stoelzle-glass-group) (stoelzle.com)<br>family-run company producing high-quality glass packaging for spirits, pharmaceuticals, cosmetics, food, and beverage sectors across multiple countries. | Packaging and Containers Manufacturing | 🇦🇹 Köflach | 616 | 1805 |
| 99 | [XAL](https://www.tamtam.ai/c/xal) (xal.com)<br>A global leader in designing and developing custom high-quality luminaires, pushing the boundaries of lighting design with innovative solutions and top-notch service | Appliances, Electrical, and Electronics Manufacturing | 🇦🇹 Graz | 615 | 1989 |
| 100 | [AOP Health](https://www.tamtam.ai/c/aop-health) (aop-health.com)<br>A European pioneer in integrated therapies for rare diseases and critical care, focusing on research, development, and global sales of innovative treatment solutions | Pharmaceutical Manufacturing | 🇦🇹 Vienna | 611 | 1996 |

## 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 Austria

- [The largest companies in Austria](https://www.tamtam.ai/l/largest-companies-austria) (1,412)
- [Multinational companies in Austria](https://www.tamtam.ai/l/multinational-companies-austria) (578)
- [Manufacturers in Austria](https://www.tamtam.ai/l/manufacturers-austria) (249)
- [Critical infrastructure operators in Austria](https://www.tamtam.ai/l/critical-infrastructure-operators-austria) (166)
- [Retail chains in Austria](https://www.tamtam.ai/l/retail-chains-austria) (159)
- [Hardware manufacturers in Austria](https://www.tamtam.ai/l/hardware-companies-austria) (150)
- [Financial services firms in Austria](https://www.tamtam.ai/l/financial-services-firms-austria) (146)
- [Corporate groups and holding companies in Austria](https://www.tamtam.ai/l/holding-companies-austria) (134)
- [Family-owned companies in Austria](https://www.tamtam.ai/l/family-owned-companies-austria) (119)
- [Companies with a mobile app in Austria](https://www.tamtam.ai/l/companies-with-mobile-app-austria) (114)
- [Software Development companies in Austria](https://www.tamtam.ai/l/software-development-companies-austria) (103)
- [IT Services and IT Consulting companies in Austria](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-austria) (101)
- [SaaS companies in Austria](https://www.tamtam.ai/l/saas-companies-austria) (90)
- [Public sector organisations in Austria](https://www.tamtam.ai/l/public-sector-organisations-austria) (88)
- [Education providers in Austria](https://www.tamtam.ai/l/education-companies-austria) (81)
- [Banking companies in Austria](https://www.tamtam.ai/l/banking-companies-austria) (79)
- [IT services companies in Austria](https://www.tamtam.ai/l/it-services-companies-austria) (70)
- [Financial Services companies in Austria](https://www.tamtam.ai/l/financial-services-companies-austria) (68)
- [Publicly traded companies in Austria](https://www.tamtam.ai/l/publicly-traded-companies-austria) (58)
- [Professional services firms in Austria](https://www.tamtam.ai/l/professional-services-firms-austria) (58)
- [Automotive manufacturers and suppliers in Austria](https://www.tamtam.ai/l/automotive-companies-austria) (53)
- [Consulting firms in Austria](https://www.tamtam.ai/l/consulting-firms-austria) (48)
- [Machinery Manufacturing companies in Austria](https://www.tamtam.ai/l/machinery-manufacturing-companies-austria) (47)
- [Research institutes in Austria](https://www.tamtam.ai/l/research-institutes-austria) (45)

## The same list elsewhere in Austria

- [Companies with in-house R&D in Upper Austria](https://www.tamtam.ai/l/r-and-d-companies-upper-austria) (63)
- [Companies with in-house R&D in Styria](https://www.tamtam.ai/l/r-and-d-companies-styria) (40)
- [Companies with in-house R&D in Lower Austria](https://www.tamtam.ai/l/r-and-d-companies-lower-austria) (31)
- [Companies with in-house R&D in Vienna](https://www.tamtam.ai/l/r-and-d-companies-vienna) (60)

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Source: https://www.tamtam.ai/l/r-and-d-companies-austria