| # | Company | Employees |
|---|---|---|
| 1 |
Médecins Sans Frontières Belgiummsf-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 |
2,654 |
| 2 | 1,089 | |
| 3 |
CEN and CENELECcencenelec.eu
Development of European standards and specifications to remove trade barriers, foster innovation, and support industry and consumers across Europe. |
735 |
| 4 | 732 | |
| 5 |
Kind en Gezinkindengezin.be
Providing preventive family support, childcare services, and adoption assistance to promote the well-being of young children and families. |
696 |
| 6 |
DUO for a JOBduoforajob.org
Mentoring young job seekers from diverse backgrounds with experienced professionals, supporting their job search and fostering intergenerational exchange. |
657 |
| 7 |
Smart Belgiumsmart.coop
Smart offers shared tools, support, and workspaces for professionals to pursue their work, allowing them to balance social safety and entrepreneurship |
554 |
| 8 |
Board of European Students of Technologybest.eu.org
A non-profit organization providing communication, cooperation, and exchange opportunities for European students in technology, focusing on international mindset and career development |
435 |
| 9 | 384 | |
| 10 |
King Baudouin Foundationkbs-frb.be
Support social justice, health, culture, education, environment, and international development to enhance public interest and social cohesion worldwide. |
382 |
| 11 | 362 | |
| 12 | 267 | |
| 13 |
Les Scouts ASBLlesscouts.be
Non-profit youth organization providing educational and recreational activities for children aged 6 to 18, fostering growth and community. |
205 |
| 14 |
Red Cross EU Officeredcross.eu
Representation of National Red Cross Societies and IFRC in the EU to influence policy, legislation, and funding for humanitarian aid and support vulnerable communities |
199 |
| 15 |
Trias NGO - Globalworldwide.trias.ngo
The organization supports entrepreneurs and farmers by removing obstacles such as lack of education or resources, helping them access training, funding, markets, and networks |
185 |
| 16 |
Kom op tegen Kankerkomoptegenkanker.be
A non-governmental organization fighting against cancer by raising funds for research, supporting care projects, and advocating for prevention and policy changes |
177 |
| 17 |
International Trade Union Confederation - ITUCituc-csi.org
Global advocate for workers' rights, promoting trade union democracy, international cooperation, and advocating for labor rights within major global institutions and organizations |
174 |
| 18 | 173 | |
| 19 |
Erasmus Mundus Associationem-a.eu
An NGO supporting students and alumni of Erasmus Mundus Joint Degrees and Joint Doctorates, backed by the European Commission |
173 |
| 20 |
EFMD Globalefmdglobal.org
International organization fostering management development through networking, accreditation, and knowledge dissemination among academic, business, and public service members worldwide. |
162 |
| 21 |
AEGEE / European Students' Forumaegee.org
A student organization promoting cooperation, integration, and youth employment in Europe through non-formal education, volunteering, and leadership development |
156 |
| 22 |
EU MedBridgeeumedbridge.eu
The regional programme promotes EU awareness in the Southern Neighborhood through campaigns, content sharing, opinion polls, youth engagement, and digital communication |
147 |
| 23 | 135 | |
| 24 |
Cultuurconnectcultuurconnect.be
Facilitating collaboration between cultural institutions, libraries, governments, tech partners, and artistic initiatives to support local communities and promote cultural activities |
67 |
| 25 |
WWF European Policy Officewwf.eu
Advocating for sustainable EU policies to protect nature and promote environmental well-being across Europe and globally through expert engagement. |
58 |
| 26 |
Fedustriafedustria.be
Fedustria is the Belgian federation of the textile, wood, and furniture industries, providing professional support, benefits, and advocacy for its members |
46 |
| 27 |
International Brain Research Organization (IBRO)ibro.org
Global neuroscience association supporting research, education, training, and outreach through publications, partnerships, and international collaboration to advance neuroscience worldwide |
39 |
| 28 |
euRobotics aisbleu-robotics.net
A Brussels-based international non-profit association promoting Europe's competitiveness in robotics technology, collaborating with the European Commission for innovation in robotics |
33 |
| 29 |
European Brain Council (EBC)braincouncil.eu
A non-profit organization in Brussels promoting brain research to improve the lives of 179 million Europeans with brain conditions |
26 |
| 30 |
Femmes Fièresfemmesfieres.com
An ecosystem supporting entrepreneurs in launching and growing their businesses, providing support for idea validation and business acceleration Reach out for assistance! |
3 |
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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 Oct 10, 2026.
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