# Top 50 companies with in-house R&D in Wallonia

Tamtam tracks 155 companies with in-house R&D headquartered in Wallonia. This list ranks the 50 largest by number of employees on LinkedIn, led by Odoo, Université catholique de Louvain and John Cockerill. Their median headcount is 347. Half of them were founded in 1985 or later. The most common headquarters are Louvain-la-Neuve (6), Charleroi (4) and Liège (4).

These Walloon companies with in-house R&D are primarily large organizations, including several long-established industrial firms and academic institutions. Noteworthy examples include Odoo, which offers integrated open-source business applications, and John Cockerill, designing and maintaining industrial equipment. Université catholique de Louvain and University of Liège are major higher education and research providers. Lhoist is a global leader in lime and minerals, while AGC Glass Europe produces flat glass for various industries.

The data reveals a significant concentration of these large R&D-focused companies in the Louvain-la-Neuve area, with multiple firms headquartered there. This suggests a regional hub for research and development activities within Wallonia, spanning diverse sectors from software to heavy industry and education.

🇧🇪 Wallonia · 50 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Odoo](https://www.tamtam.ai/c/odoo) (odoo.com)<br>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 |
| 2 | [Université catholique de Louvain](https://www.tamtam.ai/c/universite-catholique-de-louvain) (uclouvain.be)<br>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 |  |
| 3 | [John Cockerill](https://www.tamtam.ai/c/john-cockerill) (johncockerill.com)<br>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 |
| 4 | [University of Liège](https://www.tamtam.ai/c/university-of-liege) (uliege.be)<br>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 |
| 5 | [Lhoist](https://www.tamtam.ai/c/lhoist) (lhoist.com)<br>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 |
| 6 | [AGC Glass Europe](https://www.tamtam.ai/c/agc-glass-europe) (agc-glass.eu)<br>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 |  |
| 7 | [IBA](https://www.tamtam.ai/c/iba) (iba-group.com)<br>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 |
| 8 | [Sonaca](https://www.tamtam.ai/c/sonaca) (sonaca.com)<br>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 |
| 9 | [Carmeuse](https://www.tamtam.ai/c/carmeuse) (carmeuse.com)<br>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 |
| 10 | [UMONS](https://www.tamtam.ai/c/umons) (web.umons.ac.be)<br>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 |
| 11 | [CHU de Charleroi - ISPPC](https://www.tamtam.ai/c/chu-de-charleroi-isppc) (humani.be)<br>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 |  |
| 12 | [Prayon](https://www.tamtam.ai/c/prayon) (prayon.com)<br>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 |  |
| 13 | [EVS](https://www.tamtam.ai/c/evs) (evs.com)<br>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 |
| 14 | [FN Herstal](https://www.tamtam.ai/c/fn-herstal) (fnherstal.com)<br>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 |
| 15 | [GAMING1](https://www.tamtam.ai/c/gaming1) (gaming1.com)<br>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 |
| 16 | [Magotteaux](https://www.tamtam.ai/c/magotteaux) (magotteaux.com)<br>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 |
| 17 | [AGC Automotive Europe](https://www.tamtam.ai/c/agc-automotive-europe) (agc-automotive.com)<br>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 |  |
| 18 | [I-care Group](https://www.tamtam.ai/c/i-care-group) (icareweb.com)<br>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 |
| 19 | [CHU HELORA](https://www.tamtam.ai/c/chu-helora) (helora.be)<br>Operating as a large hospital group across 7 sites in Wallonia, providing evolving, high-quality, and safe patient care through university approach and medical investments. | Hospitals and Health Care | 🇧🇪 Mons | 727 |  |
| 20 | [Haute École de Namur-Liège-Luxembourg (Hénallux)](https://www.tamtam.ai/c/haute-ecole-de-namur-liege-luxembourg-henallux) (henallux.be)<br>Provides diverse higher education programs including bachelor's, master's, specializations, and continuing education across multiple campuses in Belgium. | Higher Education | 🇧🇪 Namur | 695 | 2011 |
| 21 | [AISIN Europe](https://www.tamtam.ai/c/aisin-europe) (aisin-europe.com)<br>Global provider of automotive technologies and products focusing on creating cleaner, safer, and more comfortable mobility, with a multicultural team dedicated to value creation | Motor Vehicle Parts Manufacturing | 🇧🇪 Braine-l'Alleud | 656 | 1971 |
| 22 | [Automatic Systems](https://www.tamtam.ai/c/automatic-systems) (automatic-systems.com)<br>Design and manufacture of high-performance secure entrance control systems including pedestrian, vehicle, and passenger access solutions worldwide. | Mechanical Or Industrial Engineering | 🇧🇪 Wavre | 500 | 1969 |
| 23 | [Eurogentec](https://www.tamtam.ai/c/eurogentec) (eurogentec.com)<br>International biotechnology supplier specializing in genomics, proteomics, and biomanufacturing with ISO certifications and FDA approval for commercial manufacturing of biologics | Biotechnology Research | 🇧🇪 Seraing | 372 | 1985 |
| 24 | [NICOLS](https://www.tamtam.ai/c/nicols) (nicols.eu)<br>Leading manufacturer of household and cleaning products in Europe, specializing in sponges, wipes, air fresheners, and toilet care products for private label and branded lines | Manufacturing | 🇧🇪 Nivelles | 366 | 1947 |
| 25 | [Aerospacelab](https://www.tamtam.ai/c/aerospacelab) (aerospacelab.com)<br>Specializing in manufacturing satellites ranging from 50 kg to 1000 kg for Earth Observation, Telecommunications, and Technology Demonstrations, achieving TRL9 status in 2021 #BuildingOnHeritage | Defense and Space Manufacturing | 🇧🇪 Charleroi | 347 | 2018 |
| 26 | [Chemviron](https://www.tamtam.ai/c/chemviron) (chemviron.eu)<br>An international manufacturer specializing in activated carbon products for water and air purification, offering innovative treatment systems and services globally | Environmental Services | 🇧🇪 Feluy | 340 | 1902 |
| 27 | [Gernal](https://www.tamtam.ai/c/gernal) (gernal.be)<br>Leading Belgian manufacturer of food processing machinery, specializing in designing and producing customized ovens, kettles, and cooking lines with advanced technology for food manufacturers | Machinery Manufacturing | 🇧🇪 Komen | 338 | 1967 |
| 28 | [3B-the fibreglass company](https://www.tamtam.ai/c/3b-the-fibreglass-company) (3b-fibreglass.com)<br>Development and supply of fibreglass products and technologies for reinforcing thermoplastic and thermoset polymers with global manufacturing and R&D. | Glass, Ceramics and Concrete Manufacturing | 🇧🇪 Herve | 335 | 2008 |
| 29 | [CETIC](https://www.tamtam.ai/c/cetic-charleroi) (cetic.be)<br>Specializing in applied research & technology transfer, connecting academic research with industry in software engineering, service oriented technologies, and embedded systems | IT Services and IT Consulting | 🇧🇪 Charleroi | 326 | 2001 |
| 30 | [AMOS](https://www.tamtam.ai/c/amos) (amos.be)<br>Designing, manufacturing high-precision optical and mechanical equipment, including telescopes, space optical systems, spacecraft test facilities, and high-precision mechanical equipment. | Aviation and Aerospace Component Manufacturing | 🇧🇪 Angleur | 320 | 1983 |
| 31 | [AW Europe](https://www.tamtam.ai/c/aw-europe)<br>AISIN Europe, formerly AW Europe, specializes in automotive components and engineering services, offering innovative solutions to the automotive industry | Motor Vehicle Manufacturing | 🇧🇪 Braine-l'Alleud | 297 | 1990 |
| 32 | [METALIS Group](https://www.tamtam.ai/c/metalis-group) (metalis-group.com)<br>Specializes in complex metal stamping, deep drawing, metalloplastic overmolding, and assembly for automotive and construction industries globally. | Fabricated Metal Products | 🇧🇪 Chaudefontaine | 297 | 1929 |
| 33 | [CRA-W Centre wallon de Recherches agronomiques](https://www.tamtam.ai/c/cra-w-centre-wallon-de-recherches-agronomiques) (cra.wallonie.be)<br>A scientific establishment under the Regional Government of Wallonia focused on agricultural research for sustainable development in Wallonia | Government Administration | 🇧🇪 Gembloux | 260 | 1872 |
| 34 | [QUALITY ASSISTANCE S.A.](https://www.tamtam.ai/c/quality-assistance-s-a) (quality-assistance.com)<br>Provides comprehensive analytical services for pharmaceutical industry, assisting with drug development, marketing authorization, and ensuring product quality, safety, and efficacy. | Biotechnology Research | 🇧🇪 Thuin | 240 | 1982 |
| 35 | [ISSeP](https://www.tamtam.ai/c/issep) (issep.be)<br>An organization specializing in environmental measurement, data collection, and knowledge development for a healthier and safer environment through scientific research and expertise | Environmental Services | 🇧🇪 Liège | 235 |  |
| 36 | [CRM Group](https://www.tamtam.ai/c/crm-group-liege) (crmgroup.be)<br>Research center providing innovative industrial solutions across circular economy, energy transition, digitalization, advanced manufacturing, and construction sectors for large companies and SMEs. | Think Tanks | 🇧🇪 Sart-Tilman | 230 | 1948 |
| 37 | [Institut de Pathologie et de Génétique](https://www.tamtam.ai/c/institut-de-pathologie-et-de-genetique) (ipg.be)<br>Human genetics consultations, rare disease partnerships, prenatal screening, pathology analyses, molecular biology platform, and SARS-CoV-2 genomic sequencing services. | Medical Practices | 🇧🇪 Gosselies | 230 | 1958 |
| 38 | [GALACTIC](https://www.tamtam.ai/c/galactic) (lactic.com)<br>Support manufacturers and distributors worldwide with natural antimicrobials, lactic acid derivatives, fermentation expertise, and tailored solutions for diverse industries. | Biotechnology Research | 🇧🇪 Escanaffles | 213 | 1994 |
| 39 | [IRE - Institute for radioelements](https://www.tamtam.ai/c/ire-institute-for-radioelements) (ire.eu)<br>Production of radioisotopes for diagnostic and therapeutic nuclear medicine, radiopharmaceutical derivatives for cancer treatment, and radiological monitoring services. | Pharmaceutical Manufacturing | 🇧🇪 Fleurus | 211 | 1971 |
| 40 | [N-SIDE](https://www.tamtam.ai/c/n-side) (n-side.com)<br>Providing software and services to optimize natural resource use in life sciences and energy, enabling sustainable and efficient industry transitions. | Software Development | 🇧🇪 Louvain-la-Neuve | 211 | 2000 |
| 41 | [GDTech Group](https://www.tamtam.ai/c/gdtech-group) (gdtech-group.com)<br>Integrated service provider for product development, specializing in design, numerical analysis, validation, and manufacturing across various industries with a focus on quality and flexibility | Engineering Services | 🇧🇪 Liège | 207 | 1998 |
| 42 | [Haute École Robert Schuman (HERS)](https://www.tamtam.ai/c/haute-ecole-robert-schuman-hers) (hers.be)<br>A higher education institution in Belgium offering bachelor and master programs in economics, health, education, science & technology, and social sciences Active in research and community services | Higher Education | 🇧🇪 Libramont | 205 | 1995 |
| 43 | [Multitel](https://www.tamtam.ai/c/multitel) (multitel.be)<br>A private research center specializing in applied research and development for industry leaders, SMEs, and spin-off companies in various technological fields | Research Services | 🇧🇪 Mons | 192 | 1999 |
| 44 | [LEFORT®](https://www.tamtam.ai/c/lefort) (lefort.com)<br>Manufacture of high-quality scrap metal recycling equipment including shears, balers, and shredders with global distribution and industrial excellence. | Machinery Manufacturing | 🇧🇪 Charleroi | 190 | 1947 |
| 45 | [Pranarôm](https://www.tamtam.ai/c/pranarom) (pranarom.fr)<br>Leader in Scientific Aromatherapy for 30 years, specializing in natural solutions from organic essential oils for health and wellness for all | Retail Health and Personal Care Products | 🇧🇪 Ghislenghien | 183 | 1991 |
| 46 | [Saint-Gobain BENELUX](https://www.tamtam.ai/c/saint-gobain-benelux) (saint-gobain-benelux.com)<br>A global leader in sustainable construction, designing, manufacturing, and distributing materials for the construction and industrial markets Committed to carbon neutrality by 2050 | Wholesale Building Materials | 🇧🇪 Wavre | 169 |  |
| 47 | [Laboratoires Ortis](https://www.tamtam.ai/c/laboratoires-ortis) (ortis.com)<br>Develops natural health solutions using plants, aiming to rebalance the body, strengthen immunity, regulate emotions, and address daily health issues. | Food and Beverage Manufacturing | 🇧🇪 Elsenborn | 167 | 1958 |
| 48 | [Euranova](https://www.tamtam.ai/c/euranova) (euranova.eu)<br>Drives digital transformation and innovation, harnessing AI and Data power for businesses, crafting innovative solutions, exploring emerging technologies, fostering company culture. | Data Infrastructure and Analytics | 🇧🇪 Mont-Saint-Guibert | 154 | 2008 |
| 49 | [Sunrise](https://www.tamtam.ai/c/sunrise) (hellosunrise.com)<br>Specializing in improving sleep health, we offer a unique home sleep test and digital platform for easy diagnosis and treatment | Home Health Care Services | 🇧🇪 Namur | 151 | 2015 |
| 50 | [Ecofrost SA-NV](https://www.tamtam.ai/c/ecofrost-sa-nv) (ecofrost.be)<br>Belgian company producing high-quality frozen potato products, specializing in private label fries with strong R&D and global reach. | Food and Beverage Manufacturing | 🇧🇪 Peruwelz | 142 | 2003 |

## 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 Wallonia

- [The largest companies in Wallonia](https://www.tamtam.ai/l/largest-companies-wallonia) (1,106)
- [Multinational companies in Wallonia](https://www.tamtam.ai/l/multinational-companies-wallonia) (234)
- [Manufacturers in Wallonia](https://www.tamtam.ai/l/manufacturers-wallonia) (151)
- [Retail chains in Wallonia](https://www.tamtam.ai/l/retail-chains-wallonia) (110)
- [Family-owned companies in Wallonia](https://www.tamtam.ai/l/family-owned-companies-wallonia) (82)
- [Hardware manufacturers in Wallonia](https://www.tamtam.ai/l/hardware-companies-wallonia) (75)
- [Food and Beverage Manufacturing companies in Wallonia](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-wallonia) (75)
- [IT Services and IT Consulting companies in Wallonia](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-wallonia) (67)
- [IT services companies in Wallonia](https://www.tamtam.ai/l/it-services-companies-wallonia) (67)
- [Critical infrastructure operators in Wallonia](https://www.tamtam.ai/l/critical-infrastructure-operators-wallonia) (65)
- [Consumer goods companies in Wallonia](https://www.tamtam.ai/l/consumer-goods-companies-wallonia) (59)
- [Software Development companies in Wallonia](https://www.tamtam.ai/l/software-development-companies-wallonia) (58)
- [Transportation, Logistics, Supply Chain and Storage companies in Wallonia](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-wallonia) (57)
- [SaaS companies in Wallonia](https://www.tamtam.ai/l/saas-companies-wallonia) (54)
- [Retail companies in Wallonia](https://www.tamtam.ai/l/retail-companies-wallonia) (52)
- [Contract manufacturers in Wallonia](https://www.tamtam.ai/l/contract-manufacturers-wallonia) (51)
- [Chemical companies in Wallonia](https://www.tamtam.ai/l/chemical-companies-wallonia) (45)
- [Pharmaceutical companies in Wallonia](https://www.tamtam.ai/l/pharmaceutical-companies-wallonia) (45)
- [Aerospace and defence companies in Wallonia](https://www.tamtam.ai/l/aerospace-and-defense-companies-wallonia) (44)
- [Education providers in Wallonia](https://www.tamtam.ai/l/education-companies-wallonia) (43)
- [Financial services firms in Wallonia](https://www.tamtam.ai/l/financial-services-firms-wallonia) (41)
- [Distributors and wholesalers in Wallonia](https://www.tamtam.ai/l/distributors-and-wholesalers-wallonia) (39)
- [Food and beverage companies in Wallonia](https://www.tamtam.ai/l/food-and-beverage-companies-wallonia) (38)
- [Public sector organisations in Wallonia](https://www.tamtam.ai/l/public-sector-organisations-wallonia) (38)

## 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 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)

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Source: https://www.tamtam.ai/l/r-and-d-companies-wallonia