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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
AB InBevab-inbev.com
Global brewing company with over 500 beer brands, creating memorable moments, advancing the industry, and making a positive impact worldwide |
139,770 | |||
| 2 |
UZ Leuvenuzleuven.be
The company is a leading healthcare institution in Belgium and Europe, specializing in patient care, medical education, and groundbreaking scientific research |
4,900 | |||
| 3 |
imecimec-int.com
Innovates nano- and digital technology with global partners to create advanced solutions in healthcare, clean energy, and Industry 40 Shapes future |
4,867 | |||
| 4 |
Materialisematerialise.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 |
1,915 | |||
| 5 |
TOMRA Foodtomra.com
Designs and manufactures sensor-based sorting machines, grading, peeling, and analytical technology for the food industry, improving returns and ensuring food safety globally. |
908 | |||
| 6 |
Nikon Metrologyindustry.nikon.com
Offers innovative metrology products including optical inspection, 3D metrology, vision measuring instruments, and microscopes for various industrial inspection requirements globally. |
469 | |||
| 7 | 346 | ||||
| 8 |
Septentrio part of Hexagonseptentrio.com
Designing, manufacturing high-precision OEM GNSS receivers and surveying/GIS equipment for consistent, accurate, reliable GPS/GNSS positioning globally across industries. |
186 | |||
| 9 |
Guardsquareguardsquare.com
A leading provider of mobile application security solutions, offering a comprehensive approach to protecting apps through code hardening and real-time threat visibility |
180 | |||
| 10 |
JSR Micro NVjsrmicro.be
JSR Micro NV is a global materials supplier focused on innovation in key industries like life-sciences, energy storage, electronics, and optical materials |
131 | |||
| 11 |
Simera Sensesimera-sense.com
Leading provider optical payloads, data analytics, and end-to-end solutions for small satellite imagers across RGB, video, multispectral, and hyperspectral applications. |
104 | |||
| 12 |
icometrixicometrix.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. |
71 | |||
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| 13 |
Xenicsexosens.com
Designs, markets infrared imagers, cores, cameras for machine vision, scientific research, transportation, process monitoring, safety, security, and medical applications. Pioneer in infrared technology. |
63 | |||
| 14 |
VaultSpeedvaultspeed.com
Automated Data Transformation solution providing automation templates, data modeling GUI, and metadata repository to enhance management of cloud data warehouse |
55 | |||
| 15 |
AI Planetaiplanet.com
Global AI community-driven platform offering AI marketplace, generative AI stack, free training, open-source LLMs, and strategic government partnerships. |
35 | |||
| 16 | 31 | ||||
| 17 |
RiskConcileriskconcile.com
Delivering regulatory reporting, risk calculations, fund fee analysis, and investor onboarding software for European asset managers, insurers, and fund service providers. |
29 | |||
| 18 |
VEOWARE SPACEveowarespace.com
Miniaturizes and modularizes control moment gyroscopes for small satellite attitude control, enhancing agility and providing rapid, scalable solutions without custom-made options. |
26 | |||
| 19 |
Noesis Solutionsnoesissolutions.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. |
24 | |||
| 20 |
Terumo Europe PTC
A leading engineering group providing innovative product design and manufacturing solutions for medical device manufacturers, ensuring regulatory compliance and tailored solutions |
23 | |||
| 21 |
Aetherspaceaetherspace.be
Designing, building, and launching CubeSats into space, with a focus on creating CubeSats that can survive atmospheric re-entry for sample return missions |
17 | |||
| 22 |
Mathys Belgium and Luxembourgmathysmedical.com
A global Swiss family company specializing in orthopedic products, including artificial joint replacement, bone graft substitutes, and innovative treatments for sports injuries |
13 | |||
| 23 |
GrindoSonicgrindosonic.com
Innovative company founded from university research, specializing in non-destructive testing for a wide range of materials and industrial applications worldwide |
12 | |||
| 24 | 12 | ||||
| 25 |
Pulsify Medicalpulsify-med.com
Innovative medical device company creating a non-invasive ultrasound patch for continuous monitoring of cardiac performance |
8 | |||
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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 Leuven
The same list elsewhere in Belgium
- Companies with in-house R&D in Belgium 605
- Companies with in-house R&D in Flanders 352
- Companies with in-house R&D in Wallonia 155
- Companies with in-house R&D in Brussels 60
- Companies with in-house R&D in Ghent 40