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The 100 largest companies with in-house R&D in Belgium

Tamtam tracks 605 companies with in-house R&D headquartered in Belgium. This list ranks the 100 largest by number of employees on LinkedIn, led by AB InBev, Bekaert and Solvay. Their median headcount is 2,227. Half of them were founded in 1966 or later. The most common headquarters are Brussels (17), Ghent (8) and Antwerp (6).

🇧🇪 Belgium100 companiesUpdated Nov 12, 2026

These Belgian companies with in-house R&D are primarily large, established firms, many of which have a significant global presence. They span a range of industries, with a notable concentration in manufacturing and chemical production. For example, AB InBev is a global brewing company, Bekaert specializes in steel wire transformation, Solvay develops essential chemical solutions, and UCB is an innovative biopharmaceutical company.

Several companies are headquartered in Brussels, indicating a central hub for corporate R&D activities. The list also includes two major universities, Université libre de Bruxelles and Université catholique de Louvain, highlighting the role of academic research in Belgium's R&D landscape. The presence of companies like John Cockerill, founded in 1817, and Umicore, founded in 1805, points to a strong tradition of long-standing industrial innovation.

#CompanyIndustryHeadquarters EmployeesFounded
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

Manufacturing 🇧🇪 Leuven 139,770 n/a
2
Bekaertbekaert.com

Global leader in steel wire transformation and coating technologies, providing innovative solutions for new mobility, low-carbon construction, and green energy markets

Manufacturing 🇧🇪 Zwevegem 28,000 1880
3
Solvaysolvay.com

Develops essential chemical solutions including soda ash and peroxides for cleaner mobility, healthier living, and sustainable infrastructure across global industrial sectors.

Chemical Manufacturing 🇧🇪 Brussels 16,499 1863
4
UCBucb.com

Innovative global biopharmaceutical company focused on transforming the lives of patients with severe diseases through cutting-edge scientific research and patient-centric approach

Pharmaceutical Manufacturing 🇧🇪 Brussels 14,875 1928
5
Proximus Groupproximus.com

Provider of connectivity and digital services in Benelux and global markets, investing in networks, digital ecosystems, and innovative communication solutions.

Telecommunications 🇧🇪 Brussels 13,297 n/a
6
Etexetexgroup.com

Global building material manufacturer inspiring safe, sustainable, and beautiful living spaces Emphasizing teamwork, excellence, and innovation in lightweight construction

Construction 🇧🇪 Zaventem 13,000 n/a
7
Katoen Natiekatoennatie.com

Providing tailored logistics and engineering solutions globally, from warehousing to on-site platforms, with decentralized business units for fast decision-making

Transportation, Logistics, Supply Chain and Storage 🇧🇪 Antwerp 9,200 n/a
8
Odooodoo.com

Offers integrated open-source business applications, including CRM, sales, accounting, and HR, for various businesses and industries worldwide.

Software Development 🇧🇪 Louvain-la-Neuve 8,849 2005
9
Aliaxisaliaxis.com

Global leader in advanced piping systems for various applications, offering sustainable solutions for water and energy needs globally through innovation and operational excellence

Wholesale Building Materials 🇧🇪 Brussels 7,776 n/a
10
Akka Technologiesakkodis.com

European leader in engineering consulting and R&D services, supporting clients with digital solutions and expertise across various sectors throughout product life cycles.

IT Services and IT Consulting 🇧🇪 Brussels 7,700 1984
11
Université libre de Bruxellesulb.be

Large multicultural university offering diverse academic programs, conducting advanced research, employing thousands, and fostering international collaborations and scientific events.

Research Services 🇧🇪 Ixelles 7,528 1834
12
Université catholique de Louvainuclouvain.be

Provides higher education programs, conducts high-level research, and offers services to society across multiple campuses in Belgium, employing thousands of staff.

Research Services 🇧🇪 Louvain-la-Neuve 7,288 n/a
13
John Cockerilljohncockerill.com

Designs, integrates, modernizes, maintains equipment for energy, defense, steelmaking, environment, and industry, focusing on performance, innovation, and global reach.

Industrial Machinery Manufacturing 🇧🇪 Seraing 6,989 1817
14
Umicoreumicore.com

Innovating materials technology for sustainable value, reducing emissions, advancing car technology, and driving towards a circular economy for a better life

Chemical Manufacturing 🇧🇪 Brussels 6,685 1805
15
Bridgestone EMEAbridgestone-emea.com

Regional unit of a global leader, focusing on premium tyres and sustainable mobility solutions, operating across 35 countries with extensive retail and manufacturing.

Motor Vehicle Manufacturing 🇧🇪 Zaventem 6,428 n/a
16
Daikin Europedaikin.eu

Provider of energy-efficient heating, cooling, ventilation, air purification, and refrigeration technologies for residential, commercial, and industrial markets in EMEA.

Appliances, Electrical, and Electronics Manufacturing 🇧🇪 Ostend 6,375 1973
17
Syensqosyensqo.com

A leading science company revolutionizing technology to create sustainable, high-performance solutions for various industries worldwide with a global team of experts

Chemical Manufacturing 🇧🇪 Brussels 6,082 2023
18
DEME Groupdeme-group.com

A leading contractor in offshore energy, environmental remediation, dredging, and marine infrastructure, with a focus on sustainability and innovative solutions

Civil Engineering 🇧🇪 Beveren 5,770 1876
19
Vrije Universiteit Brusselvub.be

High-quality research, customised education, and strong social commitment focused on addressing future challenges with critical thinking and humanism.

Research Services 🇧🇪 Brussels 5,504 1969
20
University of Antwerpuantwerpen.be

Offers bachelor and master programs, conducts competitive research, supports doctoral studies, and fosters student-centered, competency-based education.

Research Services 🇧🇪 Antwerp 5,488 2003
21
Samsoniteshop.samsonite.com

A global luggage brand established in 1910, known for innovation and industry firsts, offering a wide range of travel products for all needs

Manufacturing 🇧🇪 Oudenaarde 5,119 1910
22
Puratospuratos.com

A global provider of innovative food ingredients and services for the bakery, patisserie, and chocolate sectors, serving customers in over 100 countries worldwide

Food and Beverage Manufacturing 🇧🇪 Groot-Bijgaarden 4,927 1919
23
UZ Leuvenuzleuven.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 🇧🇪 Leuven 4,900 n/a
24
University of Liègeuliege.be

A public university in the Belgian French-speaking community focused on excellence in teaching, research, and innovation within a pluralistic vision

Higher Education 🇧🇪 Liège 4,883 1817
25
imecimec-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 🇧🇪 Leuven 4,867 1984
26
Barcobarco.com

The company specializes in visualization and collaboration technology to accelerate innovation in healthcare, enterprise, and entertainment for a brighter future

Technology, Information and Media 🇧🇪 Kortrijk 4,670 1934
27
NIPRO Corporation - Globalnipro-group.com

Develop high-quality medical devices, medicines, and pharmaceutical packaging to improve patient outcomes and support healthcare professionals worldwide.

Medical Equipment Manufacturing 🇧🇪 Mechelen 4,525 n/a
28
Ontexontex.com

A global producer of personal hygiene solutions for babies, women and adults, with a focus on quality, sustainability, and caring for people and the environment

Consumer Goods 🇧🇪 Aalst-Erembodegem 4,112 1979
29
SD Worxsdworx.com

We provide integrated HR solutions to empower organizations with smart technology, driving success and growth for businesses and their employees

Human Resources Services 🇧🇪 Antwerp 4,059 1945
30
UZ Gentuzgent.be

Specialized healthcare provider offering high-quality patient care, teaching, research, and services, with a wide range of primary and specialized treatments

Hospitals and Health Care 🇧🇪 Ghent 3,767 1959
31
Lhoistlhoist.com

Global leader in lime, dolime, and minerals, operating in over 25 countries, with a focus on customer proximity and high-quality solutions Join our team!

Mining 🇧🇪 Limelette 3,515 1889
32
Unilinunilin.com

Global leader in interior design and building materials, offering laminate flooring, vinyl tiles, carpet, panels, insulation, and industrial floors for homes and workspaces worldwide

Wholesale Building Materials 🇧🇪 Wielsbeke 3,487 1960
33
Agfaagfa.com

It develops and distributes imaging systems and IT solutions for printing, healthcare, and industrial applications, focusing on innovation and quality.

Technology, Information and Media 🇧🇪 Mortsel 3,366 1867
34
Toyota Motor Europetoyota-europe.com

A leading Japanese car manufacturer in Europe, with 30 National Marketing and Sales Companies, 3,000 sales outlets, and nine manufacturing plants

Motor Vehicle Manufacturing 🇧🇪 Brussels 3,196 1990
35
AGC Glass Europeagc-glass.eu

Producer and distributor of flat glass for building and automotive industries, as well as various other sectors including transport, solar power, and high-tech applications

Glass, Ceramics and Concrete Manufacturing 🇧🇪 Louvain-la-Neuve 3,153 n/a
36
Sibelco Groupsibelco.com

A global material solutions company, sourcing and distributing industrial minerals while leading in glass recycling Focused on sustainability, innovation, and customer value

Mining 🇧🇪 Antwerp 3,117 1872
37
IBAiba-group.com

A global leader in particle accelerator technology, providing advanced proton therapy equipment and services, as well as solutions in industrial sterilization and radiopharmaceuticals

Medical Equipment Manufacturing 🇧🇪 Louvain-la-Neuve 3,090 1986
38
Azelisazelis.com

Global innovation service provider in specialty chemicals and food ingredients, offering diverse products/services, technical guidance, and sustainable solutions worldwide

Chemical Manufacturing 🇧🇪 Berchem - Antwerp 2,956 n/a
39
Thomas More University of Applied Sciencesthomasmore.be

Largest university of applied sciences in Flanders offering a range of bachelor's degree and postgraduate programs in English and Dutch

Higher Education 🇧🇪 Mechelen 2,855 2012
40
Elia Groupelia.be

Operation of extensive high-voltage electricity transmission networks in Belgium and Germany, ensuring balanced supply and supporting energy transition.

Utilities 🇧🇪 Brussels 2,759 2001
41
UZ Brusseluzbrussel.be

Quality healthcare in a Dutch-speaking university hospital, providing care for all regardless of language or beliefs, while respecting individual autonomy

Hospitals and Health Care 🇧🇪 Brussels 2,704 1977
42
Medtronic Spine & Biologicsmedtronic.com

A global leader in medical technology, specializing in innovative therapies for spinal, neurological, orthopedic, and oral maxillofacial conditions

Medical Equipment Manufacturing 🇧🇪 Zaventem 2,657 1949
43
EUROCONTROLeurocontrol.int

The company supports European aviation by delivering technical excellence and expertise in air traffic management, addressing industry challenges and promoting future evolution

Airlines and Aviation 🇧🇪 Brussels 2,639 1960
44
AGFA HealthCareagfahealthcare.com

Development and provision of advanced enterprise imaging solutions designed to enhance workflow efficiency and maintain user focus in healthcare environments.

Hospitals and Health Care 🇧🇪 Mortsel 2,621 n/a
45
NATO Communications and Information Agency (NCIA)nato.int

NATO's technology and cyber experts with a team of 3,000 members across Europe and North America, safeguarding networks and providing critical capabilities to preserve peace and security

IT Services and IT Consulting 🇧🇪 Brussels 2,545 2012
46
UZAuza.be

Dedicated to serving patients and healthcare providers of the future with a commitment to excellence and a strong online ethical code

Hospitals and Health Care 🇧🇪 Edegem 2,461 1979
47
Hasselt Universityuhasselt.be

Dynamic university offering interactive education, fostering critical thinking, conducting innovative research, and supporting regional and international collaboration for sustainable development.

Higher Education 🇧🇪 Hasselt 2,297 1973
48
Sonacasonaca.com

An aerospace entity specializing in aerostructures, services, innovation, space, and defense, offering tailored solutions, competitive pricing, and global support

Aviation and Aerospace Component Manufacturing 🇧🇪 Gosselies 2,241 1920
49
BMT Groupbmt.be

Designs and manufactures engine and transmission components, industrial gears, glass mold equipment, and aerospace gears for various global industries.

Industrial Machinery Manufacturing 🇧🇪 Beernem 2,235 n/a
50
HOGENThogent.be

Provides education and training emphasizing future-proof skills to ensure students' long-term employability in a changing society.

Higher Education 🇧🇪 Ghent 2,227 1995

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51
VIVES University of Applied Sciencesvives.be

Company offers associate and bachelor degrees with high job placement rates, preparing graduates for future professional challenges in dynamic environment

Higher Education 🇧🇪 Kortrijk 2,220 2013
52
Q8q8.be

A top energy provider in Europe, offering service stations, convenience stores, lubricants, airport fueling, and advancing towards sustainable mobility solutions

Oil and Gas 🇧🇪 Antwerp 2,166 n/a
53
Karel de Grote-Hogeschoolkdg.be

Provides professional bachelor and master degrees in business, healthcare, industrial sciences, teaching, and social work with value-driven education.

Higher Education 🇧🇪 Antwerp 2,110 1995
54
Carmeusecarmeuse.com

Global manufacturer of lime, limestone, and mineral-based products for industrial and construction applications, as well as offering environmental benefits and equipment services

Mining 🇧🇪 Louvain-la-Neuve 2,047 1860
55
Eskoesko.com

Global provider of integrated software and hardware solutions to accelerate packaged goods go-to-market. Supports and manages packaging design and print for various stakeholders.

Software Development 🇧🇪 Ghent 1,929 n/a
56
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

Software Development 🇧🇪 Leuven 1,915 1990
57
Cliniques universitaires Saint-Lucsaintluc.be

Leading academic hospital in Brussels, offering specialized care, research, and education to patients from Belgium and beyond, with a focus on patient-centered values and collaboration

Hospitals and Health Care 🇧🇪 Brussels 1,889 1976
58
Tessenderlo Grouptessenderlo.com

Global industrial group specializing in agriculture, bio-residual valorization, machinery, mechanical engineering, electronics, energy, and water-focused industrial solutions.

Chemical Manufacturing 🇧🇪 Brussels 1,800 1919
59
VIBvib.be

Conducts pioneering basic research to generate insights into molecular mechanisms, translating them into innovations for patients, society, and agriculture

Research Services 🇧🇪 Ghent 1,772 1995
60
UMONSweb.umons.ac.be

Comprehensive academic institution providing diverse undergraduate and graduate degrees in psychology, engineering, economics, architecture, and medicine including specialized adult training and international research.

Higher Education 🇧🇪 Mons 1,714 2009
61
Yazaki Europe Middle East and Africayazaki-europe.com

A global company specializing in wiring harnesses for automobiles and environmental systems, prioritizing quality, sustainability, and customer satisfaction

Motor Vehicle Manufacturing 🇧🇪 Lummen 1,701 2024
62
OMPomp.com

Development and consulting of advanced, industry-specific supply chain planning software, serving global companies with innovative optimization solutions.

Software Development 🇧🇪 Wommelgem 1,669 1985
63
MELEXISmelexis.com

Designs and delivers innovative micro-electronic semiconductor solutions enabling applications in automotive, alternative mobility, smart appliances, robotics, and digital health.

Semiconductor Manufacturing 🇧🇪 Ieper 1,643 1988
64
Hôpital Erasme - Cliniques Universitaires de Bruxelleserasme.ulb.ac.be

Academic hospital affiliated with a university, providing patient care, education, and research in various specialized fields with over 3,000 staff members

Medical Practices 🇧🇪 Anderlecht 1,633 1977
65
Orizio Grouporizio-group.com

International aerospace ecosystem focusing on design, manufacturing, maintenance, and engineering services for aviation, space, and UAV markets through specialized high-tech subsidiary companies.

Aviation and Aerospace Component Manufacturing 🇧🇪 Zaventem 1,609 2020
66
Dumarey Groupdumarey.com

Specializes in innovative propulsion solutions and state-of-the-art engines for automotive and marine sectors, also collaborating on projects with technical universities

Motor Vehicle Manufacturing 🇧🇪 Turin 1,511 2020
67
ASCOasco.be

Specializing in aerospace components, they develop, manufacture, and assemble high precision steel and titanium parts for various systems and devices

Aviation and Aerospace Component Manufacturing 🇧🇪 Zaventem 1,493 1954
68
VITOvito.be

Independent research organization advancing cleantech, sustainable development, energy transition, circular economy, healthcare innovation, and sustainable use of space and water

Research Services 🇧🇪 Mol 1,388 1991
69
CHU de Charleroi - ISPPChumani.be

A healthcare group comprising multiple hospitals, day clinics, dialysis centers, and nursing homes, employing 6000 staff and 600 doctors, with research and educational facilities

Individual and Family Services 🇧🇪 Charleroi 1,378 n/a
70
La Lorraine Bakery Groupllbg.com

A European bakery group with 17 production sites, creating high-quality bakery products for retail, wholesale, and foodservice industries in 35 countries

Food and Beverage Manufacturing 🇧🇪 Ninove (Belgium) 1,354 1939
71
ADB SAFEGATEadbsafegate.com

Integrated solutions for airports & airlines to improve efficiency, safety, sustainability, and reduce costs Specializing in airfield lighting, software solutions, automation, and services

Technology, Information and Internet 🇧🇪 Machelen 1,288 1920
72
Reynaers Aluminiumreynaers.com

Development and marketing of energy-efficient aluminium windows, doors, and façades focused on sustainability and international distribution.

Wholesale Building Materials 🇧🇪 Duffel 1,246 1965
73
Soudalsoudalgroup.com

A leading European manufacturer of sealants, adhesives, and polyurethane foams for professional and private users, focusing on sustainable and innovative construction products globally

Chemical Manufacturing 🇧🇪 Turnhout 1,145 1966
74
Reynaers Groupreynaersgroup.com

A European specialist in sustainable solutions using aluminum and steel for windows, doors, curtain walls, sliding systems, sun screening, and conservatories

Wholesale Building Materials 🇧🇪 Duffel 1,143 1965
75
ArcelorMittal Belgiumbelgium.arcelormittal.com

A leading steel and mining company in Belgium, specializing in high-value steel products for automotive and industrial customers, promoting sustainability and innovation

Manufacturing 🇧🇪 Ghent 1,123 1962
76
Smulderssmulders.com

A multidisciplinary construction entity specializing in civil, industrial, and offshore wind energy projects across various international branches

Construction 🇧🇪 Arendonk 1,084 1966
77
Prayonprayon.com

A global leader in phosphorus chemistry, manufacturing phosphate and fluorine solutions for various industries like food, water treatment, electronics, and pharmaceuticals

Chemical Manufacturing 🇧🇪 Engis 1,064 n/a
78
Christeynschristeyns.com

A global player in chemicals and detergents, with a wide range of products serving various sectors worldwide through a focus on service and partnership

Chemical Manufacturing 🇧🇪 Ghent 1,055 1946
79
EVSevs.com

provider of live video technology solutions for broadcast and new media, delivering real-time sports, entertainment, and news content globally

Broadcast Media Production and Distribution 🇧🇪 Seraing 1,052 1994
80
Bosalbosal.com

A leading Dutch company specializing in developing and manufacturing catalytic converters, emission control systems, energy conversion modules, and chassis parts for various industries globally

Motor Vehicle Manufacturing 🇧🇪 Lummen 1,025 1923
81
Schréderschreder.com

Leading provider of smart outdoor lighting solutions worldwide, specializing in innovative, sustainable infrastructure for Smart Cities through energy-efficient LED technology and control systems

Appliances, Electrical, and Electronics Manufacturing 🇧🇪 Brussels 1,002 1907
82
J&J Innovative Medicine Europe, Middle East & Africa (EMEA)jnj.com

A global pharmaceutical organization dedicated to developing treatments for diseases and collaborating with partners worldwide to improve patient outcomes

Pharmaceutical Manufacturing 🇧🇪 Beerse 988 n/a
83
FN Herstalfnherstal.com

Design and manufacture of advanced small arms, less lethal solutions, integrated weapon systems, and comprehensive support for global defense and law enforcement.

Defense and Space Manufacturing 🇧🇪 Herstal 984 1889
84
GAMING1gaming1.com

The company is a leading Belgian provider of land-based and online games of chance, aiming to become a world leader in regulated online gaming

Gambling Facilities and Casinos 🇧🇪 Liège 982 1992
85
Magotteauxmagotteaux.com

Global supplier providing process optimization products, grinding media, and castings for mining, cement, and power industries through expert advice and sustainable manufacturing.

Mining 🇧🇪 Vaux-sous-Chèvremont 966 1920
86
DOMO Chemicalsdomochemicals.com

A global producer of high-quality engineered nylon materials for various industries, offering sustainable solutions and innovative products while prioritizing employee engagement and societal impact

Chemical Manufacturing 🇧🇪 Ghent 951 1994
87
stow Groupstow-group.com

Develops, manufactures, and installs top-tier racking and automated storage solutions, offering a comprehensive portfolio from conventional shelving to advanced semi-automated systems.

Industrial Machinery Manufacturing 🇧🇪 Spiere-Helkijn 943 1977
88
AGC Automotive Europeagc-automotive.com

Leading European supplier of automotive glass, fixation devices, antennas, sensors, heating elements, and enhanced property glazing for vehicle manufacturers worldwide

Motor Vehicle Manufacturing 🇧🇪 Louvain-la-Neuve 934 n/a
89
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.

Automation Machinery Manufacturing 🇧🇪 Leuven 908 n/a
90
Agristoagristo.com

Producer of frozen potato products, supplying over 300 customers in 116 countries, including retailers, distributors, fast food chains, and processing industry

Food and Beverage Manufacturing 🇧🇪 Wielsbeke 898 1986
91
BekaertDesleebekaertdeslee.com

Leading specialist in developing and manufacturing mattress textiles and covers, creating stylish and comfortable sleep solutions for a blissful night's rest

Textile Manufacturing 🇧🇪 Waregem 889 1892
92
SCK CENsckcen.be

A global leader in nuclear research, services, and education, focusing on six research topics to develop innovative applications for society's benefit

Research Services 🇧🇪 Mol 889 1952
93
Recticelrecticel.com

Innovative insulation solutions for buildings and acoustic needs, contributing to a carbon-free economy and better quality of life

Wholesale Building Materials 🇧🇪 Brussels 879 n/a
94
Agfa Inkjet Solutionsagfa.com

A leading imaging technology company offering solutions in radiology, healthcare IT, and digital print & chemicals, specializing in inkjet printing technology across various industries

Printing Services 🇧🇪 Mortsel 877 1867
95
AGP Groupagpglass.com

Develops and manufactures advanced glazing solutions for automotive, marine, and security industries, providing high-tech products for sustainable mobility.

Motor Vehicle Manufacturing 🇧🇪 Ghent 875 1965
96
I-care Groupicareweb.com

Global leader in AI-powered predictive maintenance, offering data-driven condition monitoring solutions to reduce industrial risks and promote sustainability

Software Development 🇧🇪 Mons 862 2004
97
Institut Jules Bordetbordet.be

Specialized hospital providing advanced cancer diagnosis, treatment, research, and high-level university education focused on all cancer types.

Hospitals and Health Care 🇧🇪 Anderlecht 851 n/a
98
MUMCmumc.nl

The company focuses on the importance of functional preservation in cancer treatment, featuring insights from patients and experts

Hospitals and Health Care 🇧🇪 HX Maastricht 819 n/a
99
Galapagosglpg.com

A biotechnology company dedicated to developing innovative medicines targeting diseases with high unmet needs, specializing in immunology and oncology

Biotechnology Research 🇧🇪 Mechelen 794 1999
100
Van Hoolvdlvanhool.com

Belgian manufacturer of buses, coaches, and industrial vehicles with global operations, producing around 1,200 buses and 3,000 trailers annually

Motor Vehicle Manufacturing 🇧🇪 Koningshooikt 787 1947

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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.

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