# Top 40 companies with in-house R&D in Styria

Tamtam tracks 40 companies with in-house R&D headquartered in Styria. This list ranks all of them by number of employees on LinkedIn, led by ANDRITZ, AVL and ams OSRAM. Their median headcount is 538. Half of them were founded in 1987 or later. The most common headquarters are Graz (17).

This selection of companies in Styria with in-house R&D includes large employers like ANDRITZ, a global supplier of plants and equipment, and AVL, a mobility technology company. Also present are ams OSRAM, specializing in light and sensor technologies, and KNAPP, which provides intralogistics automation solutions. These companies represent diverse sectors.

The list shows a concentration of headquarters in Graz, with several firms like ams AG, a sensor technology leader, and Anton Paar, specializing in laboratory instruments, based there. Other significant companies include AT&S, a manufacturer of high-end printed circuit boards, and RINGANA, producing natural cosmetics.

🇦🇹 Styria · 40 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [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 |  |
| 2 | [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 |  |
| 3 | [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 |  |
| 4 | [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 |
| 5 | [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 |
| 6 | [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 |
| 7 | [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 |  |
| 8 | [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 |
| 9 | [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 |  |
| 10 | [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 |
| 11 | [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 |
| 12 | [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 |  |
| 13 | [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 |
| 14 | [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 |  |
| 15 | [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 |
| 16 | [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 |  |
| 17 | [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 |
| 18 | [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 |
| 19 | [AHT Cooling Systems GmbH](https://www.tamtam.ai/c/aht-cooling-systems-gmbh) (aht.at)<br>AHT specializes in commercial refrigeration using natural refrigerants, serving discount/supermarket chains, ice cream/beverage manufacturers worldwide with career growth opportunities under Daikin's umbrella | Appliances, Electrical, and Electronics Manufacturing | 🇦🇹 Rottenmann | 593 |  |
| 20 | [LKH-Univ. Klinikum Graz](https://www.tamtam.ai/c/lkh-univ-klinikum-graz) (uniklinikumgraz.at)<br>A hospital focused on patient-centered care and providing the best healing chances through top-notch treatment, education, and research in partnership with the Medical University Graz | Hospitals and Health Care | 🇦🇹 Graz | 538 | 1912 |
| 21 | [Boxmark Leather](https://www.tamtam.ai/c/boxmark-leather) (linktr.ee)<br>A leading leather manufacturer and processor, specialized in producing upholstery leather for automotive and furniture industries with a strong focus on quality and environmental standards | Motor Vehicle Manufacturing | 🇦🇹 Feldbach | 422 | 1780 |
| 22 | [Samsung SDI Battery Systems](https://www.tamtam.ai/c/samsung-sdi-battery-systems) (samsungsdibs.at)<br>Global leader in e-mobility, specializing in innovative lithium ion battery systems for automotive applications, with headquarters in Austria and operations worldwide | Motor Vehicle Manufacturing | 🇦🇹 Kalsdorf | 411 | 2015 |
| 23 | [JOANNEUM RESEARCH](https://www.tamtam.ai/c/joanneum-research) (joanneum.at)<br>An innovative research institute in Styria developing solutions and technologies for various sectors, facilitating technology and knowledge transfer globally | Research Services | 🇦🇹 Graz | 398 | 1977 |
| 24 | [NXP Semiconductors Austria](https://www.tamtam.ai/c/nxp-semiconductors-austria) (nxp.com)<br>This company specializes in enabling secure connections and infrastructure for a smarter world, focusing on contactless identification systems in various applications | Semiconductor Manufacturing | 🇦🇹 Gratkorn | 391 |  |
| 25 | [GL Pharma](https://www.tamtam.ai/c/gl-pharma) (gl-pharma.com)<br>A leading pharmaceutical company based in Austria, specializing in research, production, and distribution of high-performance medicines for various therapeutic areas | Pharmaceutical Manufacturing | 🇦🇹 Lannach | 382 | 1947 |
| 26 | [Saubermacher Dienstleistungs AG](https://www.tamtam.ai/c/saubermacher-dienstleistungs-ag) (saubermacher.at)<br>An international waste management and recycling organization focused on achieving zero waste through innovation, digitalization, research, and sustainability | Environmental Services | 🇦🇹 Feldkirchen b. Graz | 379 | 1979 |
| 27 | [Silicon Austria Labs (SAL)](https://www.tamtam.ai/c/silicon-austria-labs-sal) (silicon-austria-labs.com)<br>development future-oriented solutions industrial production health energy mobility cooperative application-oriented research value chain green technologies sustainable solutions | Research Services | 🇦🇹 Graz | 378 | 2018 |
| 28 | [FH CAMPUS 02](https://www.tamtam.ai/c/fh-campus-02) (campus02.at)<br>Educates academic entrepreneurs, specialists, and managers for business through market-oriented studies and applied research, preparing students for key business roles and enhancing company competitiveness. | Higher Education | 🇦🇹 Graz | 356 | 1996 |
| 29 | [Mercedes-Benz G GmbH](https://www.tamtam.ai/c/mercedes-benz-g-gmbh) (mercedes-benz-g.at)<br>Austrian automotive OEM managing processes for the G-Class, combining precision and emotion with global expertise to set new standards in off-road vehicle construction | Motor Vehicle Manufacturing | 🇦🇹 Raaba | 345 | 1981 |
| 30 | [Fresenius Kabi Austria](https://www.tamtam.ai/c/fresenius-kabi-austria) (fresenius-kabi.com)<br>A global leader in healthcare specializing in infusion and nutrition therapy products, improving patient quality of life worldwide | Pharmaceutical Manufacturing | 🇦🇹 Graz | 334 |  |
| 31 | [Christof Industries](https://www.tamtam.ai/c/christof-industries) (christof.com)<br>Global industrial plant development and servicing partner with innovative, sustainable solutions for various industries worldwide, aiming for a circular economy with zero waste | Industrial Machinery Manufacturing | 🇦🇹 Graz | 317 |  |
| 32 | [Pankl Racing Systems](https://www.tamtam.ai/c/pankl-racing-systems) (pankl.com)<br>The company aims to be a top supplier of systems for motor racing, luxury cars, and aviation, emphasizing innovation, quality, and customer success | Motor Vehicle Manufacturing | 🇦🇹 Kapfenberg | 311 | 1985 |
| 33 | [F/LIST](https://www.tamtam.ai/c/f-list) (f-list.at)<br>A global high-tech manufacturer specializing in sophisticated interiors for jets, yachts, and homes, with a focus on quality, innovation, and client satisfaction | Furniture and Home Furnishings Manufacturing | 🇦🇹 Thomasberg | 295 | 1950 |
| 34 | [KOMPTECH GmbH](https://www.tamtam.ai/c/komptech-gmbh) (komptech.com)<br>A leading expert in mechanical and biological waste recycling, specializing in woody biomass treatment with a range of over 50 machines for shredding, separation, and biological treatment | Machinery Manufacturing | 🇦🇹 Frohnleiten | 185 | 1992 |
| 35 | [Vexcel Imaging](https://www.tamtam.ai/c/vexcel-imaging) (vexcel-imaging.com)<br>A global leader in aerial imaging, specializing in aerial cameras, mapping systems, and photogrammetric processing software for high-precision data collection | International Trade and Development | 🇦🇹 Graz | 184 | 1995 |
| 36 | [AVL DiTEST](https://www.tamtam.ai/c/avl-ditest) (avlditest.com)<br>The company specializes in providing high quality test systems and diagnostic tools for workshops and test centers worldwide, ensuring support throughout the vehicle life cycle | Motor Vehicle Manufacturing | 🇦🇹 Graz | 183 | 1999 |
| 37 | [REDWAVE](https://www.tamtam.ai/c/redwave) (redwave.com)<br>REDWAVE provides innovative recycling and waste treatment solutions worldwide, including sensor-based sorting machines, turnkey sorting plants, waste treatment plants, and composting systems | Machinery Manufacturing | 🇦🇹 Eggersdorf bei Graz | 90 | 1997 |
| 38 | [blackshark.ai](https://www.tamtam.ai/c/blackshark-ai) (blackshark.ai)<br>geospatial intelligence, leveraging AI and satellite technology for object detection, simulation, and creating a 3D digital twin of Earth. | Software Development | 🇦🇹 Graz | 70 |  |
| 39 | [TRIOTRONIK Computer und Netzwerktechnik GmbH](https://www.tamtam.ai/c/triotronik-computer-und-netzwerktechnik-gmbh) (triotronik.com)<br>The company specializes in network technology, offering structured cabling, fiber solutions, active components, video surveillance, distribution of leading brands, and training programs globally | Computer Networking Products | 🇦🇹 Weiz | 35 | 1995 |
| 40 | [ARTI](https://www.tamtam.ai/c/arti) (arti-robots.com)<br>High-tech software start-up developing robust AI Kits for ground-bound autonomous mobile robots, offering turnkey products, services, and consulting for robotic projects | Software Development | 🇦🇹 Gössendorf | 14 | 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 11, 2026.

## More company lists in Styria

- [The largest companies in Styria](https://www.tamtam.ai/l/largest-companies-styria) (139)
- [Multinational companies in Styria](https://www.tamtam.ai/l/multinational-companies-styria) (56)
- [Manufacturers in Styria](https://www.tamtam.ai/l/manufacturers-styria) (34)

## The same list elsewhere in Austria

- [Companies with in-house R&D in Austria](https://www.tamtam.ai/l/r-and-d-companies-austria) (259)
- [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 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-styria