# 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). 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, UniversitΓ© libre de Bruxelles and UniversitΓ© 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. πŸ‡§πŸ‡ͺ Belgium Β· 100 companies Β· 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 | πŸ‡§πŸ‡ͺ Leuven | 139,770 | | | 2 | [Bekaert](https://www.tamtam.ai/c/bekaert) (bekaert.com)
Global leader in steel wire transformation and coating technologies, providing innovative solutions for new mobility, low-carbon construction, and green energy markets | Manufacturing | πŸ‡§πŸ‡ͺ Zwevegem | 28,000 | 1880 | | 3 | [Solvay](https://www.tamtam.ai/c/solvay) (solvay.com)
Develops essential chemical solutions including soda ash and peroxides for cleaner mobility, healthier living, and sustainable infrastructure across global industrial sectors. | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Brussels | 16,499 | 1863 | | 4 | [UCB](https://www.tamtam.ai/c/ucb) (ucb.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 | πŸ‡§πŸ‡ͺ Brussels | 14,875 | 1928 | | 5 | [Proximus Group](https://www.tamtam.ai/c/proximus-group) (proximus.com)
Provider of connectivity and digital services in Benelux and global markets, investing in networks, digital ecosystems, and innovative communication solutions. | Telecommunications | πŸ‡§πŸ‡ͺ Brussels | 13,297 | | | 6 | [Etex](https://www.tamtam.ai/c/etex) (etexgroup.com)
Global building material manufacturer inspiring safe, sustainable, and beautiful living spaces Emphasizing teamwork, excellence, and innovation in lightweight construction | Construction | πŸ‡§πŸ‡ͺ Zaventem | 13,000 | | | 7 | [Katoen Natie](https://www.tamtam.ai/c/katoen-natie) (katoennatie.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 | πŸ‡§πŸ‡ͺ Antwerp | 9,200 | | | 8 | [Odoo](https://www.tamtam.ai/c/odoo) (odoo.com)
Offers integrated open-source business applications, including CRM, sales, accounting, and HR, for various businesses and industries worldwide. | Software Development | πŸ‡§πŸ‡ͺ Louvain-la-Neuve | 8,849 | 2005 | | 9 | [Aliaxis](https://www.tamtam.ai/c/aliaxis) (aliaxis.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 | πŸ‡§πŸ‡ͺ Brussels | 7,776 | | | 10 | [Akka Technologies](https://www.tamtam.ai/c/akka-technologies) (akkodis.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 | πŸ‡§πŸ‡ͺ Brussels | 7,700 | 1984 | | 11 | [UniversitΓ© libre de Bruxelles](https://www.tamtam.ai/c/universite-libre-de-bruxelles) (ulb.be)
Large multicultural university offering diverse academic programs, conducting advanced research, employing thousands, and fostering international collaborations and scientific events. | Research Services | πŸ‡§πŸ‡ͺ Ixelles | 7,528 | 1834 | | 12 | [UniversitΓ© catholique de Louvain](https://www.tamtam.ai/c/universite-catholique-de-louvain) (uclouvain.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 | πŸ‡§πŸ‡ͺ Louvain-la-Neuve | 7,288 | | | 13 | [John Cockerill](https://www.tamtam.ai/c/john-cockerill) (johncockerill.com)
Designs, integrates, modernizes, maintains equipment for energy, defense, steelmaking, environment, and industry, focusing on performance, innovation, and global reach. | Industrial Machinery Manufacturing | πŸ‡§πŸ‡ͺ Seraing | 6,989 | 1817 | | 14 | [Umicore](https://www.tamtam.ai/c/umicore) (umicore.com)
Innovating materials technology for sustainable value, reducing emissions, advancing car technology, and driving towards a circular economy for a better life | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Brussels | 6,685 | 1805 | | 15 | [Bridgestone EMEA](https://www.tamtam.ai/c/bridgestone-emea) (bridgestone-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 | πŸ‡§πŸ‡ͺ Zaventem | 6,428 | | | 16 | [Daikin Europe](https://www.tamtam.ai/c/daikin-europe) (daikin.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 | πŸ‡§πŸ‡ͺ Ostend | 6,375 | 1973 | | 17 | [Syensqo](https://www.tamtam.ai/c/syensqo) (syensqo.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 | πŸ‡§πŸ‡ͺ Brussels | 6,082 | 2023 | | 18 | [DEME Group](https://www.tamtam.ai/c/deme-group) (deme-group.com)
A leading contractor in offshore energy, environmental remediation, dredging, and marine infrastructure, with a focus on sustainability and innovative solutions | Civil Engineering | πŸ‡§πŸ‡ͺ Beveren | 5,770 | 1876 | | 19 | [Vrije Universiteit Brussel](https://www.tamtam.ai/c/vrije-universiteit-brussel) (vub.be)
High-quality research, customised education, and strong social commitment focused on addressing future challenges with critical thinking and humanism. | Research Services | πŸ‡§πŸ‡ͺ Brussels | 5,504 | 1969 | | 20 | [University of Antwerp](https://www.tamtam.ai/c/university-of-antwerp) (uantwerpen.be)
Offers bachelor and master programs, conducts competitive research, supports doctoral studies, and fosters student-centered, competency-based education. | Research Services | πŸ‡§πŸ‡ͺ Antwerp | 5,488 | 2003 | | 21 | [Samsonite](https://www.tamtam.ai/c/samsonite) (shop.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 | πŸ‡§πŸ‡ͺ Oudenaarde | 5,119 | 1910 | | 22 | [Puratos](https://www.tamtam.ai/c/puratos) (puratos.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 | πŸ‡§πŸ‡ͺ Groot-Bijgaarden | 4,927 | 1919 | | 23 | [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 | πŸ‡§πŸ‡ͺ Leuven | 4,900 | | | 24 | [University of LiΓ¨ge](https://www.tamtam.ai/c/university-of-liege) (uliege.be)
A public university in the Belgian French-speaking community focused on excellence in teaching, research, and innovation within a pluralistic vision | Higher Education | πŸ‡§πŸ‡ͺ LiΓ¨ge | 4,883 | 1817 | | 25 | [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 | πŸ‡§πŸ‡ͺ Leuven | 4,867 | 1984 | | 26 | [Barco](https://www.tamtam.ai/c/barco) (barco.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 | πŸ‡§πŸ‡ͺ Kortrijk | 4,670 | 1934 | | 27 | [NIPRO Corporation - Global](https://www.tamtam.ai/c/nipro-corporation-global) (nipro-group.com)
Develop high-quality medical devices, medicines, and pharmaceutical packaging to improve patient outcomes and support healthcare professionals worldwide. | Medical Equipment Manufacturing | πŸ‡§πŸ‡ͺ Mechelen | 4,525 | | | 28 | [Ontex](https://www.tamtam.ai/c/ontex) (ontex.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 | πŸ‡§πŸ‡ͺ Aalst-Erembodegem | 4,112 | 1979 | | 29 | [SD Worx](https://www.tamtam.ai/c/sd-worx) (sdworx.com)
We provide integrated HR solutions to empower organizations with smart technology, driving success and growth for businesses and their employees | Human Resources Services | πŸ‡§πŸ‡ͺ Antwerp | 4,059 | 1945 | | 30 | [UZ Gent](https://www.tamtam.ai/c/uz-gent) (uzgent.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 | πŸ‡§πŸ‡ͺ Ghent | 3,767 | 1959 | | 31 | [Lhoist](https://www.tamtam.ai/c/lhoist) (lhoist.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 | πŸ‡§πŸ‡ͺ Limelette | 3,515 | 1889 | | 32 | [Unilin](https://www.tamtam.ai/c/unilin) (unilin.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 | πŸ‡§πŸ‡ͺ Wielsbeke | 3,487 | 1960 | | 33 | [Agfa](https://www.tamtam.ai/c/agfa) (agfa.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 | πŸ‡§πŸ‡ͺ Mortsel | 3,366 | 1867 | | 34 | [Toyota Motor Europe](https://www.tamtam.ai/c/toyota-motor-europe) (toyota-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 | πŸ‡§πŸ‡ͺ Brussels | 3,196 | 1990 | | 35 | [AGC Glass Europe](https://www.tamtam.ai/c/agc-glass-europe) (agc-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 | πŸ‡§πŸ‡ͺ Louvain-la-Neuve | 3,153 | | | 36 | [Sibelco Group](https://www.tamtam.ai/c/sibelco-group) (sibelco.com)
A global material solutions company, sourcing and distributing industrial minerals while leading in glass recycling Focused on sustainability, innovation, and customer value | Mining | πŸ‡§πŸ‡ͺ Antwerp | 3,117 | 1872 | | 37 | [IBA](https://www.tamtam.ai/c/iba) (iba-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 | πŸ‡§πŸ‡ͺ Louvain-la-Neuve | 3,090 | 1986 | | 38 | [Azelis](https://www.tamtam.ai/c/azelis) (azelis.com)
Global innovation service provider in specialty chemicals and food ingredients, offering diverse products/services, technical guidance, and sustainable solutions worldwide | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Berchem - Antwerp | 2,956 | | | 39 | [Thomas More University of Applied Sciences](https://www.tamtam.ai/c/thomas-more-university-of-applied-sciences) (thomasmore.be)
Largest university of applied sciences in Flanders offering a range of bachelor's degree and postgraduate programs in English and Dutch | Higher Education | πŸ‡§πŸ‡ͺ Mechelen | 2,855 | 2012 | | 40 | [Elia Group](https://www.tamtam.ai/c/elia-group) (elia.be)
Operation of extensive high-voltage electricity transmission networks in Belgium and Germany, ensuring balanced supply and supporting energy transition. | Utilities | πŸ‡§πŸ‡ͺ Brussels | 2,759 | 2001 | | 41 | [UZ Brussel](https://www.tamtam.ai/c/uz-brussel) (uzbrussel.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 | πŸ‡§πŸ‡ͺ Brussels | 2,704 | 1977 | | 42 | [Medtronic Spine & Biologics](https://www.tamtam.ai/c/medtronic-spine-and-biologics) (medtronic.com)
A global leader in medical technology, specializing in innovative therapies for spinal, neurological, orthopedic, and oral maxillofacial conditions | Medical Equipment Manufacturing | πŸ‡§πŸ‡ͺ Zaventem | 2,657 | 1949 | | 43 | [EUROCONTROL](https://www.tamtam.ai/c/eurocontrol) (eurocontrol.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 | πŸ‡§πŸ‡ͺ Brussels | 2,639 | 1960 | | 44 | [AGFA HealthCare](https://www.tamtam.ai/c/agfa-healthcare) (agfahealthcare.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 | πŸ‡§πŸ‡ͺ Mortsel | 2,621 | | | 45 | [NATO Communications and Information Agency (NCIA)](https://www.tamtam.ai/c/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 | πŸ‡§πŸ‡ͺ Brussels | 2,545 | 2012 | | 46 | [UZA](https://www.tamtam.ai/c/uza) (uza.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 | πŸ‡§πŸ‡ͺ Edegem | 2,461 | 1979 | | 47 | [Hasselt University](https://www.tamtam.ai/c/hasselt-university-hasselt) (uhasselt.be)
Dynamic university offering interactive education, fostering critical thinking, conducting innovative research, and supporting regional and international collaboration for sustainable development. | Higher Education | πŸ‡§πŸ‡ͺ Hasselt | 2,297 | 1973 | | 48 | [Sonaca](https://www.tamtam.ai/c/sonaca) (sonaca.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 | πŸ‡§πŸ‡ͺ Gosselies | 2,241 | 1920 | | 49 | [BMT Group](https://www.tamtam.ai/c/bmt-group) (bmt.be)
Designs and manufactures engine and transmission components, industrial gears, glass mold equipment, and aerospace gears for various global industries. | Industrial Machinery Manufacturing | πŸ‡§πŸ‡ͺ Beernem | 2,235 | | | 50 | [HOGENT](https://www.tamtam.ai/c/hogent) (hogent.be)
Provides education and training emphasizing future-proof skills to ensure students' long-term employability in a changing society. | Higher Education | πŸ‡§πŸ‡ͺ Ghent | 2,227 | 1995 | | 51 | [VIVES University of Applied Sciences](https://www.tamtam.ai/c/vives-university-of-applied-sciences) (vives.be)
Company offers associate and bachelor degrees with high job placement rates, preparing graduates for future professional challenges in dynamic environment | Higher Education | πŸ‡§πŸ‡ͺ Kortrijk | 2,220 | 2013 | | 52 | [Q8](https://www.tamtam.ai/c/q8) (q8.be)
A top energy provider in Europe, offering service stations, convenience stores, lubricants, airport fueling, and advancing towards sustainable mobility solutions | Oil and Gas | πŸ‡§πŸ‡ͺ Antwerp | 2,166 | | | 53 | [Karel de Grote-Hogeschool](https://www.tamtam.ai/c/karel-de-grote-hogeschool) (kdg.be)
Provides professional bachelor and master degrees in business, healthcare, industrial sciences, teaching, and social work with value-driven education. | Higher Education | πŸ‡§πŸ‡ͺ Antwerp | 2,110 | 1995 | | 54 | [Carmeuse](https://www.tamtam.ai/c/carmeuse) (carmeuse.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 | πŸ‡§πŸ‡ͺ Louvain-la-Neuve | 2,047 | 1860 | | 55 | [Esko](https://www.tamtam.ai/c/esko) (esko.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 | πŸ‡§πŸ‡ͺ Ghent | 1,929 | | | 56 | [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 | πŸ‡§πŸ‡ͺ Leuven | 1,915 | 1990 | | 57 | [Cliniques universitaires Saint-Luc](https://www.tamtam.ai/c/cliniques-universitaires-saint-luc) (saintluc.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 | πŸ‡§πŸ‡ͺ Brussels | 1,889 | 1976 | | 58 | [Tessenderlo Group](https://www.tamtam.ai/c/tessenderlo-group) (tessenderlo.com)
Global industrial group specializing in agriculture, bio-residual valorization, machinery, mechanical engineering, electronics, energy, and water-focused industrial solutions. | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Brussels | 1,800 | 1919 | | 59 | [VIB](https://www.tamtam.ai/c/vib) (vib.be)
Conducts pioneering basic research to generate insights into molecular mechanisms, translating them into innovations for patients, society, and agriculture | Research Services | πŸ‡§πŸ‡ͺ Ghent | 1,772 | 1995 | | 60 | [UMONS](https://www.tamtam.ai/c/umons) (web.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 | πŸ‡§πŸ‡ͺ Mons | 1,714 | 2009 | | 61 | [Yazaki Europe Middle East and Africa](https://www.tamtam.ai/c/yazaki-europe-middle-east-and-africa) (yazaki-europe.com)
A global company specializing in wiring harnesses for automobiles and environmental systems, prioritizing quality, sustainability, and customer satisfaction | Motor Vehicle Manufacturing | πŸ‡§πŸ‡ͺ Lummen | 1,701 | 2024 | | 62 | [OMP](https://www.tamtam.ai/c/omp-wommelgem) (omp.com)
Development and consulting of advanced, industry-specific supply chain planning software, serving global companies with innovative optimization solutions. | Software Development | πŸ‡§πŸ‡ͺ Wommelgem | 1,669 | 1985 | | 63 | [MELEXIS](https://www.tamtam.ai/c/melexis) (melexis.com)
Designs and delivers innovative micro-electronic semiconductor solutions enabling applications in automotive, alternative mobility, smart appliances, robotics, and digital health. | Semiconductor Manufacturing | πŸ‡§πŸ‡ͺ Ieper | 1,643 | 1988 | | 64 | [HΓ΄pital Erasme - Cliniques Universitaires de Bruxelles](https://www.tamtam.ai/c/hopital-erasme-cliniques-universitaires-de-bruxelles) (erasme.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 | πŸ‡§πŸ‡ͺ Anderlecht | 1,633 | 1977 | | 65 | [Orizio Group](https://www.tamtam.ai/c/orizio-group) (orizio-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 | πŸ‡§πŸ‡ͺ Zaventem | 1,609 | 2020 | | 66 | [Dumarey Group](https://www.tamtam.ai/c/dumarey-group) (dumarey.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 | πŸ‡§πŸ‡ͺ Turin | 1,511 | 2020 | | 67 | [ASCO](https://www.tamtam.ai/c/asco) (asco.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 | πŸ‡§πŸ‡ͺ Zaventem | 1,493 | 1954 | | 68 | [VITO](https://www.tamtam.ai/c/vito) (vito.be)
Independent research organization advancing cleantech, sustainable development, energy transition, circular economy, healthcare innovation, and sustainable use of space and water | Research Services | πŸ‡§πŸ‡ͺ Mol | 1,388 | 1991 | | 69 | [CHU de Charleroi - ISPPC](https://www.tamtam.ai/c/chu-de-charleroi-isppc) (humani.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 | πŸ‡§πŸ‡ͺ Charleroi | 1,378 | | | 70 | [La Lorraine Bakery Group](https://www.tamtam.ai/c/la-lorraine-bakery-group) (llbg.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 | πŸ‡§πŸ‡ͺ Ninove (Belgium) | 1,354 | 1939 | | 71 | [ADB SAFEGATE](https://www.tamtam.ai/c/adb-safegate) (adbsafegate.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 | πŸ‡§πŸ‡ͺ Machelen | 1,288 | 1920 | | 72 | [Reynaers Aluminium](https://www.tamtam.ai/c/reynaers-aluminium) (reynaers.com)
Development and marketing of energy-efficient aluminium windows, doors, and faΓ§ades focused on sustainability and international distribution. | Wholesale Building Materials | πŸ‡§πŸ‡ͺ Duffel | 1,246 | 1965 | | 73 | [Soudal](https://www.tamtam.ai/c/soudal) (soudalgroup.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 | πŸ‡§πŸ‡ͺ Turnhout | 1,145 | 1966 | | 74 | [Reynaers Group](https://www.tamtam.ai/c/reynaers-group) (reynaersgroup.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 | πŸ‡§πŸ‡ͺ Duffel | 1,143 | 1965 | | 75 | [ArcelorMittal Belgium](https://www.tamtam.ai/c/arcelormittal-belgium) (belgium.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 | πŸ‡§πŸ‡ͺ Ghent | 1,123 | 1962 | | 76 | [Smulders](https://www.tamtam.ai/c/smulders) (smulders.com)
A multidisciplinary construction entity specializing in civil, industrial, and offshore wind energy projects across various international branches | Construction | πŸ‡§πŸ‡ͺ Arendonk | 1,084 | 1966 | | 77 | [Prayon](https://www.tamtam.ai/c/prayon) (prayon.com)
A global leader in phosphorus chemistry, manufacturing phosphate and fluorine solutions for various industries like food, water treatment, electronics, and pharmaceuticals | Chemical Manufacturing | πŸ‡§πŸ‡ͺ Engis | 1,064 | | | 78 | [Christeyns](https://www.tamtam.ai/c/christeyns) (christeyns.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 | πŸ‡§πŸ‡ͺ Ghent | 1,055 | 1946 | | 79 | [EVS](https://www.tamtam.ai/c/evs) (evs.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 | πŸ‡§πŸ‡ͺ Seraing | 1,052 | 1994 | | 80 | [Bosal](https://www.tamtam.ai/c/bosal) (bosal.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 | πŸ‡§πŸ‡ͺ Lummen | 1,025 | 1923 | | 81 | [SchrΓ©der](https://www.tamtam.ai/c/schreder) (schreder.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 | πŸ‡§πŸ‡ͺ Brussels | 1,002 | 1907 | | 82 | [J&J Innovative Medicine Europe, Middle East & Africa (EMEA)](https://www.tamtam.ai/c/j-and-j-innovative-medicine-europe-middle-east-and-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 | πŸ‡§πŸ‡ͺ Beerse | 988 | | | 83 | [FN Herstal](https://www.tamtam.ai/c/fn-herstal) (fnherstal.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 | πŸ‡§πŸ‡ͺ Herstal | 984 | 1889 | | 84 | [GAMING1](https://www.tamtam.ai/c/gaming1) (gaming1.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 | πŸ‡§πŸ‡ͺ LiΓ¨ge | 982 | 1992 | | 85 | [Magotteaux](https://www.tamtam.ai/c/magotteaux) (magotteaux.com)
Global supplier providing process optimization products, grinding media, and castings for mining, cement, and power industries through expert advice and sustainable manufacturing. | Mining | πŸ‡§πŸ‡ͺ Vaux-sous-ChΓ¨vremont | 966 | 1920 | | 86 | [DOMO Chemicals](https://www.tamtam.ai/c/domo-chemicals) (domochemicals.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 | πŸ‡§πŸ‡ͺ Ghent | 951 | 1994 | | 87 | [stow Group](https://www.tamtam.ai/c/stow-group) (stow-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 | πŸ‡§πŸ‡ͺ Spiere-Helkijn | 943 | 1977 | | 88 | [AGC Automotive Europe](https://www.tamtam.ai/c/agc-automotive-europe) (agc-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 | πŸ‡§πŸ‡ͺ Louvain-la-Neuve | 934 | | | 89 | [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 | πŸ‡§πŸ‡ͺ Leuven | 908 | | | 90 | [Agristo](https://www.tamtam.ai/c/agristo) (agristo.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 | πŸ‡§πŸ‡ͺ Wielsbeke | 898 | 1986 | | 91 | [BekaertDeslee](https://www.tamtam.ai/c/bekaertdeslee) (bekaertdeslee.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 | πŸ‡§πŸ‡ͺ Waregem | 889 | 1892 | | 92 | [SCK CEN](https://www.tamtam.ai/c/sck-cen) (sckcen.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 | πŸ‡§πŸ‡ͺ Mol | 889 | 1952 | | 93 | [Recticel](https://www.tamtam.ai/c/recticel) (recticel.com)
Innovative insulation solutions for buildings and acoustic needs, contributing to a carbon-free economy and better quality of life | Wholesale Building Materials | πŸ‡§πŸ‡ͺ Brussels | 879 | | | 94 | [Agfa Inkjet Solutions](https://www.tamtam.ai/c/agfa-inkjet-solutions) (agfa.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 | πŸ‡§πŸ‡ͺ Mortsel | 877 | 1867 | | 95 | [AGP Group](https://www.tamtam.ai/c/agp-group) (agpglass.com)
Develops and manufactures advanced glazing solutions for automotive, marine, and security industries, providing high-tech products for sustainable mobility. | Motor Vehicle Manufacturing | πŸ‡§πŸ‡ͺ Ghent | 875 | 1965 | | 96 | [I-care Group](https://www.tamtam.ai/c/i-care-group) (icareweb.com)
Global leader in AI-powered predictive maintenance, offering data-driven condition monitoring solutions to reduce industrial risks and promote sustainability | Software Development | πŸ‡§πŸ‡ͺ Mons | 862 | 2004 | | 97 | [Institut Jules Bordet](https://www.tamtam.ai/c/institut-jules-bordet) (bordet.be)
Specialized hospital providing advanced cancer diagnosis, treatment, research, and high-level university education focused on all cancer types. | Hospitals and Health Care | πŸ‡§πŸ‡ͺ Anderlecht | 851 | | | 98 | [MUMC](https://www.tamtam.ai/c/mumc) (mumc.nl)
The company focuses on the importance of functional preservation in cancer treatment, featuring insights from patients and experts | Hospitals and Health Care | πŸ‡§πŸ‡ͺ HX Maastricht | 819 | | | 99 | [Galapagos](https://www.tamtam.ai/c/galapagos) (glpg.com)
A biotechnology company dedicated to developing innovative medicines targeting diseases with high unmet needs, specializing in immunology and oncology | Biotechnology Research | πŸ‡§πŸ‡ͺ Mechelen | 794 | 1999 | | 100 | [Van Hool](https://www.tamtam.ai/c/van-hool) (vdlvanhool.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 | πŸ‡§πŸ‡ͺ Koningshooikt | 787 | 1947 | ## 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 Belgium - [The largest companies in Belgium](https://www.tamtam.ai/l/largest-companies-belgium) (6,987) - [Multinational companies in Belgium](https://www.tamtam.ai/l/multinational-companies-belgium) (1,745) - [Manufacturers in Belgium](https://www.tamtam.ai/l/manufacturers-belgium) (630) - [Retail chains in Belgium](https://www.tamtam.ai/l/retail-chains-belgium) (622) - [IT services companies in Belgium](https://www.tamtam.ai/l/it-services-companies-belgium) (551) - [IT Services and IT Consulting companies in Belgium](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-belgium) (542) - [Family-owned companies in Belgium](https://www.tamtam.ai/l/family-owned-companies-belgium) (435) - [Software Development companies in Belgium](https://www.tamtam.ai/l/software-development-companies-belgium) (430) - [Transportation, Logistics, Supply Chain and Storage companies in Belgium](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-belgium) (409) - [SaaS companies in Belgium](https://www.tamtam.ai/l/saas-companies-belgium) (407) - [Professional services firms in Belgium](https://www.tamtam.ai/l/professional-services-firms-belgium) (396) - [Critical infrastructure operators in Belgium](https://www.tamtam.ai/l/critical-infrastructure-operators-belgium) (354) - [Hardware manufacturers in Belgium](https://www.tamtam.ai/l/hardware-companies-belgium) (320) - [Financial services firms in Belgium](https://www.tamtam.ai/l/financial-services-firms-belgium) (314) - [Distributors and wholesalers in Belgium](https://www.tamtam.ai/l/distributors-and-wholesalers-belgium) (314) - [Consulting firms in Belgium](https://www.tamtam.ai/l/consulting-firms-belgium) (285) - [Retail companies in Belgium](https://www.tamtam.ai/l/retail-companies-belgium) (285) - [Food and Beverage Manufacturing companies in Belgium](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-belgium) (282) - [Truck Transportation companies in Belgium](https://www.tamtam.ai/l/truck-transportation-companies-belgium) (259) - [Logistics companies in Belgium](https://www.tamtam.ai/l/logistics-companies-belgium) (258) - [Advertising Services companies in Belgium](https://www.tamtam.ai/l/advertising-services-companies-belgium) (222) - [Education providers in Belgium](https://www.tamtam.ai/l/education-companies-belgium) (209) - [Consumer goods companies in Belgium](https://www.tamtam.ai/l/consumer-goods-companies-belgium) (205) - [E-commerce companies in Belgium](https://www.tamtam.ai/l/ecommerce-companies-belgium) (201) ## The same list elsewhere in Belgium - [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) - [Companies with in-house R&D in Leuven](https://www.tamtam.ai/l/r-and-d-companies-leuven) (25) ## 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) --- Source: https://www.tamtam.ai/l/r-and-d-companies-belgium