Tamtam Start free

Multinational companies headquartered in Wallonia

Tamtam tracks 234 multinational companies 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 709. Half of them were founded in 1981 or later. The most common headquarters are Nivelles (6), Louvain-la-Neuve (5) and Charleroi (2).

🇧🇪 Wallonia50 companiesUpdated Nov 11, 2026

The companies listed in Wallonia are primarily large multinational groups, encompassing diverse sectors from industrial manufacturing to financial services and software development. Notable examples include Odoo, a developer of integrated open-source business applications; John Cockerill, which designs and maintains industrial equipment; Swift, a global financial messaging provider; and Lhoist, a leader in lime and minerals.

A significant cluster of these companies, including Odoo, Université catholique de Louvain, AGC Glass Europe, IBA, and Carmeuse, have their headquarters in Louvain-la-Neuve. This concentration of headquarters in one city suggests a regional hub for various industries and research.

#CompanyIndustryHeadquarters EmployeesFounded
1
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
2
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
3
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
4
Swiftswift.com

Provides secure financial messaging, connecting over 11,000 organizations in 200+ countries, offering a platform, products, and services for communication and compliance.

Financial Services 🇧🇪 La Hulpe 5,640 1973
5
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
6
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
7
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
8
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
9
Knauf Insulationknauf.com

Manufactures diverse insulation materials and solutions focused on enhancing energy efficiency and sustainability in residential, commercial, and industrial buildings worldwide.

Wholesale Building Materials 🇧🇪 Vise 2,183 n/a
10
Croix-Rouge de Belgiquecroix-rouge.be

Provide humanitarian aid, disaster relief, health protection, solidarity actions, and international cooperation focusing on vulnerable populations and crisis prevention.

Non-profit Organizations 🇧🇪 Namur 2,130 1864
11
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
12
Zeteszetes.com

Delivers SAAS solutions, optimizing customers' supply chains and innovating citizen identification globally. Work for B2B customers ensures end-to-end traceability and visibility of goods.

Software Development 🇧🇪 Brussels 1,261 1984
13
NSIgroupensi.com

Providing integrated IT solutions and high-value services including enterprise architecture, ERP, AI, mobile, e-commerce, and infrastructure management for businesses.

IT Services and IT Consulting 🇧🇪 Awans 1,172 1993
14
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
15
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
16
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
17
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
18
NLMK Europeeu.nlmk.com

NLMK Europe produces a wide range of steel products, including hot rolled, cold rolled, and coated steels, focusing on quality, sustainability, and customer satisfaction

Mining 🇧🇪 La Louvière 979 2011
19
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
20
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
21
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
22
Thomas & Pironthomas-piron.eu

Construction and renovation of residential, commercial, and industrial buildings in Belgium and Luxembourg with a focus on quality and innovation.

Construction 🇧🇪 Our (Paliseul) 766 1976
23
Medi-Market Groupmedi-market-group.be

Chain of pharmacies and parapharmacies providing personalized advice and a wide range of health, natural medicine, cosmetics, nutrition, and baby care products.

Retail 🇧🇪 Nivelles 749 2014
24
LAURENTYlaurenty.com

Specializing in maintenance, cleaning, asbestos removal, paintwork, green space maintenance, and road sweeping with a large fleet of vehicles and cleaning machines

Facilities Services 🇧🇪 Liège 728 1953
25
Easieasi.net

Easi, a Belgian IT company, provides software development, IT infrastructure, cloud services, and cybersecurity solutions for mid-market businesses.

IT Services and IT Consulting 🇧🇪 Nivelles 709 1999

Want more companies than this list?

This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers.

Get more companies, free
26
Hamon Groupenergy.johncockerill.com

The company provides air quality, cooling, and heat recovery systems for industry and power generation, focusing on efficiency and reducing carbon footprint

Industrial Machinery Manufacturing 🇧🇪 Seraing 684 1904
27
Heidelberg Materials Beneluxheidelbergmaterials-benelux.com

Leading manufacturer of cement, aggregates, and concrete in Belgium and the Netherlands with strong focus on environmental responsibility and carbon neutrality.

Wholesale Building Materials 🇧🇪 Braine-l'Alleud 666 1873
28
AISIN Europeaisin-europe.com

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
29
ASL Airlines Belgiumaslairlines.be

Provides cargo and passenger air services, ACMI contracts, aircraft maintenance, and traffic rights management based in Liege Airport.

Airlines and Aviation 🇧🇪 Grâce-Hollogne 619 1999
30
Louyet Grouplouyet.com

A family-owned business serving customers for 60 years A trusted partner of BMW, MINI, and BMW Motorrad with multiple locations

Motor Vehicle Manufacturing 🇧🇪 Charleroi 501 1959
31
Automatic Systemsautomatic-systems.com

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
32
Bardahl Sadapsbardahl.fr

A global company founded in 1954, specializing in manufacturing and distributing high-performance chemical products for various markets, including automotive, industrial, and DIY

Chemical Manufacturing 🇧🇪 Tournai 453 1954
33
Eiffage Énergie Systèmes - Beluxeiffageenergiesystemes.be

Specialized in electrical, industrial, climate control, and energy systems, offering design, construction, operation, and maintenance services through three expertise poles and ten entities

Environmental Services 🇧🇪 Ans 447 2003
34
Technordtechnord.com

Specializing in electrical engineering and industrial information communication technology, we provide innovative solutions tailored to clients' needs with expertise and dedication Trusted globally

Automation Machinery Manufacturing 🇧🇪 Tournai 440 1988
35
Unifiedpost Groupunifiedpostgroup.com

Unifiedpost Group offers cloud-based solutions for digital connections, enhancing operational efficiency, compliance, and cash flow optimization for businesses globally

Financial Services 🇧🇪 La Hulpe 401 2001
36
Trasistrasis.com

Design, manufacture, and support of radiolabelled therapeutic and diagnostic synthesizers, dose preparation equipment, shielding, and customized synthetic methods.

Medical Equipment Manufacturing 🇧🇪 Ans 393 2004
37
Group-IPSgroup-ips.com

Expert project management and engineering services supporting industrial projects across multiple sectors to streamline success and improve operational efficiency worldwide.

Engineering Services 🇧🇪 Nivelles 391 1992
38
Eurogenteceurogentec.com

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
39
NICOLSnicols.eu

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
40
Galèregalere.be

General construction firm specializing in building and civil engineering projects, actively involved in major infrastructure projects in Wallonia and Brussels, employing over 1,000 people

Construction 🇧🇪 Chaudfontaine 365 1949
41
Gantrexgantrex.com

Global leader in crane rail solutions, founded in 1971 in Belgium Offers high-quality products, installation, and maintenance services worldwide, serving various industries

Engineering Services 🇧🇪 Nivelles 350 1971
42
De Smet Engineers & Contractors (DSEC)dsengineers.com

Global provider of Engineering and Turn Key projects for various industries including bio-based chemicals, energy efficiency, sugars, oils, agro-nutrients, with a focus on sustainability

Engineering Services 🇧🇪 Mont-Saint-Guibert 348 1989
43
Aerospacelabaerospacelab.com

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
44
WANTYwanty.eu

Specializing in large construction projects, our family business offers services such as roadwork, building dismantling, asbestos removal, and civil engineering with a focus on quality and safety

Construction 🇧🇪 Péronnes-lez-Binche 345 1946
45
Chemvironchemviron.eu

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
46
3B-the fibreglass company3b-fibreglass.com

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
47
Waffle Factorywafflefactory.com

Franchise network offering authentic Belgian waffles, both sweet and savory, made with fresh, quality ingredients across multiple countries.

Food and Beverage Services 🇧🇪 Marquain 323 1999
48
expharexphar.com

For 40 years, this laboratory has been developing affordable pharmaceutical specialties for African, Asian, and Central American markets, with 50 products in 25 countries

Pharmaceutical Manufacturing 🇧🇪 Nivelles 319 1981
49
Maternematerne.be

A company dedicated to improving consumer well-being with quality products, using natural benefits, nutritional value, and a focus on taste

Food and Beverage Manufacturing 🇧🇪 Floreffe 308 1888
50
Paprikapaprika-shopping.be

A fashion brand offering trendy, colorful, and affordable clothing for curvy women, with over 150 stores in 5 countries

Retail Apparel and Fashion 🇧🇪 Wauthier-Braine 299 2003

Turn this list into pipeline

Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.

Build your own list, free

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 same list elsewhere in Belgium