# List of companies with in-house R&D in Leuven
Tamtam tracks 25 companies with in-house R&D headquartered in Leuven. This list ranks all of them by number of employees on LinkedIn, led by AB InBev, UZ Leuven and imec. Their median headcount is 63. Half of them were founded in 2011 or later.
The companies in Leuven with in-house R&D are primarily large to mid-sized firms, with a notable presence of younger companies. Many are active in advanced technology, healthcare, and specialized manufacturing. The list includes AB InBev, a global brewing company, UZ Leuven, a leading healthcare institution, and imec, which innovates in nano- and digital technology.
A significant cluster is observed in software development, represented by companies such as Materialise, which offers solutions for industrial manufacturing, Guardsquare, a mobile application security provider, and VaultSpeed, focusing on automated data transformation. Another strong area is industrial and automation machinery manufacturing, with companies like TOMRA Food and Nikon Metrology.
๐ง๐ช Leuven ยท 25 companies ยท Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [AB InBev](https://www.tamtam.ai/c/ab-inbev) (ab-inbev.com)
Global brewing company with over 500 beer brands, creating memorable moments, advancing the industry, and making a positive impact worldwide | Manufacturing | ๐ง๐ช Leuven | 139,770 | |
| 2 | [UZ Leuven](https://www.tamtam.ai/c/uz-leuven) (uzleuven.be)
The company is a leading healthcare institution in Belgium and Europe, specializing in patient care, medical education, and groundbreaking scientific research | Hospitals and Health Care | ๐ง๐ช Leuven | 4,900 | |
| 3 | [imec](https://www.tamtam.ai/c/imec) (imec-int.com)
Innovates nano- and digital technology with global partners to create advanced solutions in healthcare, clean energy, and Industry 40 Shapes future | Research Services | ๐ง๐ช Leuven | 4,867 | 1984 |
| 4 | [Materialise](https://www.tamtam.ai/c/materialise) (materialise.com)
Innovative solutions for flexible industrial manufacturing and personalized healthcare through 30 years of experience in additive technologies Leading the way for a sustainable world | Software Development | ๐ง๐ช Leuven | 1,915 | 1990 |
| 5 | [TOMRA Food](https://www.tamtam.ai/c/tomra-food) (tomra.com)
Designs and manufactures sensor-based sorting machines, grading, peeling, and analytical technology for the food industry, improving returns and ensuring food safety globally. | Automation Machinery Manufacturing | ๐ง๐ช Leuven | 908 | |
| 6 | [Nikon Metrology](https://www.tamtam.ai/c/nikon-metrology) (industry.nikon.com)
Offers innovative metrology products including optical inspection, 3D metrology, vision measuring instruments, and microscopes for various industrial inspection requirements globally. | Industrial Machinery Manufacturing | ๐ง๐ช Leuven | 469 | 1917 |
| 7 | [GC Europe](https://www.tamtam.ai/c/gc-europe) (gc.dental)
A dedicated dental industry leader, committed to global oral health through innovation, quality assurance, environmental responsibility, customer communication, and corporate philosophy | Medical Equipment Manufacturing | ๐ง๐ช Leuven | 346 | 1972 |
| 8 | [Septentrio part of Hexagon](https://www.tamtam.ai/c/septentrio-part-of-hexagon) (septentrio.com)
Designing, manufacturing high-precision OEM GNSS receivers and surveying/GIS equipment for consistent, accurate, reliable GPS/GNSS positioning globally across industries. | Appliances, Electrical, and Electronics Manufacturing | ๐ง๐ช Leuven | 186 | 2000 |
| 9 | [Guardsquare](https://www.tamtam.ai/c/guardsquare) (guardsquare.com)
A leading provider of mobile application security solutions, offering a comprehensive approach to protecting apps through code hardening and real-time threat visibility | Software Development | ๐ง๐ช Leuven | 180 | 2014 |
| 10 | [JSR Micro NV](https://www.tamtam.ai/c/jsr-micro-nv) (jsrmicro.be)
JSR Micro NV is a global materials supplier focused on innovation in key industries like life-sciences, energy storage, electronics, and optical materials | Chemical Manufacturing | ๐ง๐ช Leuven | 131 | 1957 |
| 11 | [Simera Sense](https://www.tamtam.ai/c/simera-sense) (simera-sense.com)
Leading provider optical payloads, data analytics, and end-to-end solutions for small satellite imagers across RGB, video, multispectral, and hyperspectral applications. | Defense and Space Manufacturing | ๐ง๐ช Leuven | 104 | 2017 |
| 12 | [icometrix](https://www.tamtam.ai/c/icometrix) (icometrix.com)
Offers AI solutions extracting data from brain MRI and CT scans for neurological disorder management and provides a digital platform for MS patient monitoring. | Hospitals and Health Care | ๐ง๐ช Leuven | 71 | 2011 |
| 13 | [Xenics](https://www.tamtam.ai/c/xenics) (exosens.com)
Designs, markets infrared imagers, cores, cameras for machine vision, scientific research, transportation, process monitoring, safety, security, and medical applications. Pioneer in infrared technology. | Semiconductor Manufacturing | ๐ง๐ช Leuven | 63 | 2000 |
| 14 | [VaultSpeed](https://www.tamtam.ai/c/vaultspeed) (vaultspeed.com)
Automated Data Transformation solution providing automation templates, data modeling GUI, and metadata repository to enhance management of cloud data warehouse | Software Development | ๐ง๐ช Leuven | 55 | 2018 |
| 15 | [AI Planet](https://www.tamtam.ai/c/ai-planet) (aiplanet.com)
Global AI community-driven platform offering AI marketplace, generative AI stack, free training, open-source LLMs, and strategic government partnerships. | Software Development | ๐ง๐ช Leuven | 35 | |
| 16 | [Apixa](https://www.tamtam.ai/c/apixa) (apixa.com)
Specializing in solving complex computer vision problems through services and solutions including deep learning, AI, medical imaging, visual inspection, and 3D imaging | IT Services and IT Consulting | ๐ง๐ช Leuven | 31 | 2007 |
| 17 | [RiskConcile](https://www.tamtam.ai/c/riskconcile) (riskconcile.com)
Delivering regulatory reporting, risk calculations, fund fee analysis, and investor onboarding software for European asset managers, insurers, and fund service providers. | Financial Services | ๐ง๐ช Leuven | 29 | 2015 |
| 18 | [VEOWARE SPACE](https://www.tamtam.ai/c/veoware-space) (veowarespace.com)
Miniaturizes and modularizes control moment gyroscopes for small satellite attitude control, enhancing agility and providing rapid, scalable solutions without custom-made options. | Aviation and Aerospace Component Manufacturing | ๐ง๐ช Leuven | 26 | 2016 |
| 19 | [Noesis Solutions](https://www.tamtam.ai/c/noesis-solutions) (noesissolutions.com)
Provides software platform helping manufacturers integrate simulation processes and perform multi-disciplinary design optimization, automating trial-and-error simulation processes for optimal product design. | Software Development | ๐ง๐ช Leuven | 24 | |
| 20 | [Terumo Europe PTC](https://www.tamtam.ai/c/terumo-europe-ptc)
A leading engineering group providing innovative product design and manufacturing solutions for medical device manufacturers, ensuring regulatory compliance and tailored solutions | Mechanical Or Industrial Engineering | ๐ง๐ช Leuven | 23 | 2011 |
| 21 | [Aetherspace](https://www.tamtam.ai/c/aetherspace) (aetherspace.be)
Designing, building, and launching CubeSats into space, with a focus on creating CubeSats that can survive atmospheric re-entry for sample return missions | Space Research and Technology | ๐ง๐ช Leuven | 17 | 2020 |
| 22 | [Mathys Belgium and Luxembourg](https://www.tamtam.ai/c/mathys-belgium-and-luxembourg) (mathysmedical.com)
A global Swiss family company specializing in orthopedic products, including artificial joint replacement, bone graft substitutes, and innovative treatments for sports injuries | Medical Equipment Manufacturing | ๐ง๐ช Leuven | 13 | 1946 |
| 23 | [GrindoSonic](https://www.tamtam.ai/c/grindosonic) (grindosonic.com)
Innovative company founded from university research, specializing in non-destructive testing for a wide range of materials and industrial applications worldwide | Measuring and Control Instrument Manufacturing | ๐ง๐ช Leuven | 12 | 1980 |
| 24 | [Solhyd](https://www.tamtam.ai/c/solhyd) (solhyd.eu)
Accelerating the energy transition by producing green hydrogen from sunlight and air, making it accessible for anyone, anywhere | Renewables & Environment | ๐ง๐ช Leuven | 12 | 2023 |
| 25 | [Pulsify Medical](https://www.tamtam.ai/c/pulsify-medical) (pulsify-med.com)
Innovative medical device company creating a non-invasive ultrasound patch for continuous monitoring of cardiac performance | Medical Equipment Manufacturing | ๐ง๐ช Leuven | 8 | 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 Leuven
- [The largest companies in Leuven](https://www.tamtam.ai/l/largest-companies-leuven) (115)
- [Multinational companies in Leuven](https://www.tamtam.ai/l/multinational-companies-leuven) (37)
## The same list elsewhere in Belgium
- [Companies with in-house R&D in Belgium](https://www.tamtam.ai/l/r-and-d-companies-belgium) (605)
- [Companies with in-house R&D in Flanders](https://www.tamtam.ai/l/r-and-d-companies-flanders) (352)
- [Companies with in-house R&D in Wallonia](https://www.tamtam.ai/l/r-and-d-companies-wallonia) (155)
- [Companies with in-house R&D in Brussels](https://www.tamtam.ai/l/r-and-d-companies-brussels) (60)
- [Companies with in-house R&D in Ghent](https://www.tamtam.ai/l/r-and-d-companies-ghent) (40)
## The same list elsewhere
- [Companies with in-house R&D in the world](https://www.tamtam.ai/l/r-and-d-companies-in-the-world) (34,346)
- [Companies with in-house R&D in Europe](https://www.tamtam.ai/l/r-and-d-companies-in-europe) (20,169)
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Source: https://www.tamtam.ai/l/r-and-d-companies-leuven