# 30 leading multinational companies in Brussels Tamtam tracks 326 multinational companies headquartered in Brussels. This list ranks the 30 largest by number of employees on LinkedIn, led by Radisson Hotel Group, BDO and European Commission. Their median headcount is 6,685. These Brussels-based companies represent a mix of sectors, with a notable presence in hospitality, chemical manufacturing, and professional services. The list includes large international groups such as Radisson Hotel Group, which operates over 1,600 hotels, and Solvay, a chemical manufacturer founded in 1863. Other significant entities are BDO, a global professional services firm, and UCB, a biopharmaceutical company. A clear pattern among these companies is their multinational reach, with many operating across EMEA, APAC, or globally. The presence of organizations like the European Commission and NATO also highlights Brussels' role as a center for international governance and affairs, alongside established Belgian corporations like KBC Bank & Verzekering. πŸ‡§πŸ‡ͺ Brussels Β· 30 companies Β· Updated Nov 11, 2026 | # | Company | Industry | Headquarters | Employees | Founded | |---|---|---|---|---|---| | 1 | [Radisson Hotel Group](https://www.tamtam.ai/c/radisson-hotel-group) (radissonhotels.com)
Operates and develops over 1,600 hotels across EMEA and APAC, offering diverse brands, loyalty programs, carbon-neutral meetings, and sustainable stays. | Hospitality | πŸ‡§πŸ‡ͺ Brussels | 100,000 | | | 2 | [BDO](https://www.tamtam.ai/c/bdo-brussels) (bdo.global)
Providing professional services globally with 1800 offices, focusing on quality, technology, and innovative solutions for long-term client value. | Accounting | πŸ‡§πŸ‡ͺ Brussels | 51,974 | | | 3 | [European Commission](https://www.tamtam.ai/c/european-commission) (europa.eu)
An independent body representing the EU, the Commission prepares legislation, administers budgets, and cooperates with member countries on policy programs | Government Administration | πŸ‡§πŸ‡ͺ Brussels | 34,000 | 1958 | | 4 | [Radisson Blu](https://www.tamtam.ai/c/radisson-blu) (radissonhotels.com)
Offers stylish and elegant hotel accommodations for business and leisure travelers in various global destinations, part of a larger hotel group. | Hospitality | πŸ‡§πŸ‡ͺ Brussels | 17,691 | | | 5 | [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 | | 6 | [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 | | 7 | [KBC Bank & Verzekering](https://www.tamtam.ai/c/kbc-bank-and-verzekering) (kbc.be)
A leading integrated bank-insurer focused on individuals, private banking clients, and small to medium-sized enterprises in Belgium, Central and Eastern Europe Operating worldwide selectively | Financial Services | πŸ‡§πŸ‡ͺ Brussels | 13,565 | 1998 | | 8 | [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 | | | 9 | [European Parliament](https://www.tamtam.ai/c/european-parliament) (europa.eu)
The company is the elected body of the European Union, consisting of members who shape laws and policies, encouraging respectful discussion and participation in European elections | Political Organizations | πŸ‡§πŸ‡ͺ Brussels | 10,920 | | | 10 | [Bnode](https://www.tamtam.ai/c/bnode) (bnode.com)
Operating across Europe, North America, Asia-Pacific, specialized business units provide 3PL, fulfillment, cross-border e-commerce logistics, and last-mile delivery services. | Transportation, Logistics, Supply Chain and Storage | πŸ‡§πŸ‡ͺ Brussels | 9,028 | | | 11 | [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 | | | 12 | [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 | | 13 | [TRACTEBEL](https://www.tamtam.ai/c/tractebel) (tractebel-engie.com)
Provides integrated solutions for sustainable energy and built environment projects, offering expertise in nuclear, renewables, power, grids, infrastructure, and water resources. | Engineering Services | πŸ‡§πŸ‡ͺ Brussels | 7,185 | | | 14 | [NATO](https://www.tamtam.ai/c/nato) (nato.int)
Working to promote peace, security, and freedom for one billion people through political and military means, including crisis-management operations | International Affairs | πŸ‡§πŸ‡ͺ Brussels | 6,782 | 1949 | | 15 | [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 | | 16 | [Radisson](https://www.tamtam.ai/c/radisson) (radissonhotels.com)
Offers hotel stays in urban, suburban, and leisure spots across the Americas, Asia Pacific, and the Caribbean under various brands. | Hospitality | πŸ‡§πŸ‡ͺ Brussels | 6,336 | | | 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 | [Euroclear](https://www.tamtam.ai/c/euroclear) (euroclear.com)
A global provider of settlement and related services for bond, equity, ETFs, and mutual fund transactions, with a diverse and inclusive culture | Financial Services | πŸ‡§πŸ‡ͺ Brussels | 5,937 | 1968 | | 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 | [bpostgroup](https://www.tamtam.ai/c/bpostgroup) (bpostgroup.com)
The company focuses on creating connections through personalized services, constant improvement, challenging projects, collaborations, latest technologies, job opportunities, and training programs | Transportation, Logistics, Supply Chain and Storage | πŸ‡§πŸ‡ͺ Brussels | 5,309 | | | 21 | [Equans BeLux](https://www.tamtam.ai/c/equans-belux) (equans.be)
The company focuses on solving challenges by creating smarter cities, efficient industries, and sustainable buildings through a range of expertise and services | Industrial Machinery Manufacturing | πŸ‡§πŸ‡ͺ Brussels | 4,917 | | | 22 | [ING Belgium](https://www.tamtam.ai/c/ing-belgium) (ing.com)
Global financial institution driving sustainable progress through innovation, technology, and customer-centric banking, with diverse teams shaping the future | Financial Services | πŸ‡§πŸ‡ͺ Brussels | 4,728 | | | 23 | [TPF](https://www.tamtam.ai/c/tpf) (tpfgroup.com)
Global multidisciplinary engineering consultancy providing end-to-end project execution across fifty countries using local know-how and international expertise for diverse infrastructure and development sectors. | Civil Engineering | πŸ‡§πŸ‡ͺ Brussels | 4,569 | | | 24 | [Country Inn & Suites by Radisson](https://www.tamtam.ai/c/country-inn-and-suites-by-radisson) (radissonhotels.com)
A leading upper midscale hotel brand with locations in the United States, Canada, India, and Latin America providing a welcoming stay for travelers | Hospitality | πŸ‡§πŸ‡ͺ Brussels | 3,644 | | | 25 | [ENGIE Belgium](https://www.tamtam.ai/c/engie-belgium) (engie.be)
Belgian market leader in electricity, natural gas, and energy services, offering innovative solutions for more economical, low-carbon energy use | Utilities | πŸ‡§πŸ‡ͺ Brussels | 3,272 | | | 26 | [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 | | 27 | [Park Inn by Radisson](https://www.tamtam.ai/c/park-inn-by-radisson) (radissonhotels.com)
Offers comfortable, connected, affordable hotels, delivering stress-free experiences, good food, and vibrant environments with contemporary design and friendly personalized service. | Hospitality | πŸ‡§πŸ‡ͺ Brussels | 3,003 | | | 28 | [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 | | 29 | [European External Action Service](https://www.tamtam.ai/c/european-external-action-service) (europa.eu)
The company supports the EU's foreign affairs chief in implementing the Union's Common Foreign and Security Policy as the diplomatic service | International Affairs | πŸ‡§πŸ‡ͺ Brussels | 2,697 | 2011 | | 30 | [MΓ©decins Sans FrontiΓ¨res Belgium](https://www.tamtam.ai/c/medecins-sans-frontieres-belgium) (msf-azg.be)
Delivering medical and humanitarian aid globally for 40 years, with a team of 22,000 employees from diverse backgrounds Operations in 60+ countries | Non-profit Organizations | πŸ‡§πŸ‡ͺ Brussels | 2,654 | 1971 | ## 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 Brussels - [The largest companies in Brussels](https://www.tamtam.ai/l/largest-companies-brussels) (1,033) - [Financial services firms in Brussels](https://www.tamtam.ai/l/financial-services-firms-brussels) (96) - [Public sector organisations in Brussels](https://www.tamtam.ai/l/public-sector-organisations-brussels) (79) - [IT Services and IT Consulting companies in Brussels](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-brussels) (75) - [Retail chains in Brussels](https://www.tamtam.ai/l/retail-chains-brussels) (71) - [Critical infrastructure operators in Brussels](https://www.tamtam.ai/l/critical-infrastructure-operators-brussels) (70) - [Professional services firms in Brussels](https://www.tamtam.ai/l/professional-services-firms-brussels) (64) - [IT services companies in Brussels](https://www.tamtam.ai/l/it-services-companies-brussels) (63) - [Companies with in-house R&D in Brussels](https://www.tamtam.ai/l/r-and-d-companies-brussels) (60) - [Financial Services companies in Brussels](https://www.tamtam.ai/l/financial-services-companies-brussels) (54) - [SaaS companies in Brussels](https://www.tamtam.ai/l/saas-companies-brussels) (54) - [Consulting firms in Brussels](https://www.tamtam.ai/l/consulting-firms-brussels) (52) - [Government Administration companies in Brussels](https://www.tamtam.ai/l/government-administration-companies-brussels) (52) - [Insurance companies in Brussels](https://www.tamtam.ai/l/insurance-companies-brussels) (49) - [Software Development companies in Brussels](https://www.tamtam.ai/l/software-development-companies-brussels) (47) - [Companies with a mobile app in Brussels](https://www.tamtam.ai/l/companies-with-mobile-app-brussels) (42) - [Education providers in Brussels](https://www.tamtam.ai/l/education-companies-brussels) (38) - [Non-profit Organizations companies in Brussels](https://www.tamtam.ai/l/non-profit-organizations-companies-brussels) (38) - [Subscription businesses in Brussels](https://www.tamtam.ai/l/subscription-businesses-brussels) (38) - [Advertising Services companies in Brussels](https://www.tamtam.ai/l/advertising-services-companies-brussels) (34) - [Marketing and communications agencies in Brussels](https://www.tamtam.ai/l/marketing-agencies-brussels) (33) - [Hotel and hospitality groups in Brussels](https://www.tamtam.ai/l/hospitality-groups-brussels) (31) - [Manufacturers in Brussels](https://www.tamtam.ai/l/manufacturers-brussels) (30) - [Recruitment and staffing agencies in Brussels](https://www.tamtam.ai/l/recruitment-agencies-brussels) (29) ## The same list elsewhere in Belgium - [Multinational companies in Belgium](https://www.tamtam.ai/l/multinational-companies-belgium) (1,745) - [Multinational companies in Flanders](https://www.tamtam.ai/l/multinational-companies-flanders) (1,023) - [Multinational companies in Wallonia](https://www.tamtam.ai/l/multinational-companies-wallonia) (234) - [Multinational companies in Antwerp](https://www.tamtam.ai/l/multinational-companies-antwerp) (162) - [Multinational companies in Ghent](https://www.tamtam.ai/l/multinational-companies-ghent) (77) - [Multinational companies in Zaventem](https://www.tamtam.ai/l/multinational-companies-zaventem) (47) - [Multinational companies in Leuven](https://www.tamtam.ai/l/multinational-companies-leuven) (37) - [Multinational companies in Mechelen](https://www.tamtam.ai/l/multinational-companies-mechelen) (33) - [Multinational companies in Kontich](https://www.tamtam.ai/l/multinational-companies-kontich) (25) --- Source: https://www.tamtam.ai/l/multinational-companies-brussels