| # | 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 |
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. |
2,130 |
| 3 |
Rode Kruis-Vlaanderenrodekruis.be
A diverse and reliable humanitarian organization in Belgium, focusing on helping, providing safe blood products, disaster relief, and empowering individuals through lifesaving techniques and support |
1,453 |
| 4 | 1,089 | |
| 5 | 760 | |
| 6 |
CEN and CENELECcencenelec.eu
Development of European standards and specifications to remove trade barriers, foster innovation, and support industry and consumers across Europe. |
735 |
| 7 | 732 | |
| 8 |
Opgroeienopgroeien.be
An agency in Flanders and Brussels providing comprehensive support to children, youth, and families through various services and partnerships |
708 |
| 9 | 708 | |
| 10 |
Kind en Gezinkindengezin.be
Providing preventive family support, childcare services, and adoption assistance to promote the well-being of young children and families. |
696 |
| 11 |
DUO for a JOBduoforajob.org
Mentoring young job seekers from diverse backgrounds with experienced professionals, supporting their job search and fostering intergenerational exchange. |
657 |
| 12 |
COST Association - European Cooperation in Science and Technologycost.eu
A non-profit association promoting, funding, and managing international research networks and activities in various scientific fields through EU-funded COST program |
561 |
| 13 |
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 |
| 14 | 518 | |
| 15 |
Fermsamenferm.be
A network of organizations in rural Flanders and major cities offering services to support women caregivers and promote general welfare |
477 |
| 16 |
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 |
| 17 |
GTB Vlaanderengtb.be
Specialized in guiding people with disabilities towards employment, providing support during the first 3 months and offering long-term professional advice and assistance |
434 |
| 18 |
Natuurpuntnatuurpunt.be
Volunteer organization in Flanders protecting nature reserves through land management, public access, guided walks, and scientific research supported by members |
434 |
| 19 |
IAAS (International Association of Students in Agricultural and Related Sciences)iaasworld.org
An international organization uniting students in agricultural and related sciences, providing training and expertise in various fields, with global partnerships |
430 |
| 20 |
EIT Foodeitfood.eu
Support food innovation by investing in projects, connecting stakeholders, scaling startups, educating professionals, and improving environmental and health outcomes. |
418 |
| 21 | 384 | |
| 22 |
King Baudouin Foundationkbs-frb.be
Support social justice, health, culture, education, environment, and international development to enhance public interest and social cohesion worldwide. |
382 |
| 23 | 362 | |
| 24 |
OCMW Bruggeocmw-brugge.be
Provider of personalized, professional, and inclusive social services, promoting dignified living for all individuals through innovation and community leadership |
320 |
| 25 | 267 | |
| 26 |
Les Scouts ASBLlesscouts.be
Non-profit youth organization providing educational and recreational activities for children aged 6 to 18, fostering growth and community. |
205 |
| 27 |
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 |
| 28 |
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 |
| 29 |
Entirisentiris.be
A leading social enterprise offering tailored employment opportunities for individuals facing barriers, providing diverse services and solutions with a focus on innovation and quality |
182 |
| 30 | 181 | |
| 31 |
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 |
| 32 |
Damien Foundationactiondamien.be
A non-profit organization providing medical assistance to those with leprosy, tuberculosis, and other diseases in vulnerable communities worldwide through screening, treatment, and support |
175 |
| 33 |
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 |
| 34 |
CodeFevercodefever.be
Preparing children for the digital future through programming lessons, teaching over 33,000 kids computational thinking and coding skills in a fun and accessible way |
174 |
| 35 | 173 | |
| 36 |
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 |
| 37 |
CEMAcema-agri.org
CEMA is the association representing the European agricultural machinery industry, comprising manufacturers producing a wide range of equipment for farming activities |
171 |
| 38 |
Scouts en Gidsen Vlaanderenscoutsengidsenvlaanderen.be
The organization provides scouting activities for children and teenagers aged 6 to 18, focusing on personal development, teamwork, and outdoor experiences |
171 |
| 39 |
EFMD Globalefmdglobal.org
International organization fostering management development through networking, accreditation, and knowledge dissemination among academic, business, and public service members worldwide. |
162 |
| 40 |
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 |
| 41 | 156 | |
| 42 | 154 | |
| 43 |
International Diabetes Federationidf.org
A global organization dedicated to improving the lives of people with diabetes and preventing the disease in at-risk populations since 1950 |
153 |
| 44 |
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 |
| 45 |
Voka - Kamer van Koophandel Limburgvoka.be
Leading network supporting entrepreneurship and businesses in Flanders, representing their interests, enhancing knowledge, and fostering connections for mutual growth and well-being #togetherinbusiness #businessgrowth |
146 |
| 46 | 135 | |
| 47 |
Cultuurconnectcultuurconnect.be
Facilitating collaboration between cultural institutions, libraries, governments, tech partners, and artistic initiatives to support local communities and promote cultural activities |
67 |
| 48 |
Recupelrecupel.be
This organization collects and recycles used electrical and electronic appliances to promote a circular economy, reduce landfill waste, and drive innovation in recycling |
62 |
| 49 |
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 |
| 50 |
Fedustriafedustria.be
Fedustria is the Belgian federation of the textile, wood, and furniture industries, providing professional support, benefits, and advocacy for its members |
46 |
| 51 |
Adhesia (-> Mensura)mensura.be
A company specializing in prevention, safety, and health services to help ensure healthy, fit, and productive employees for optimal results |
42 |
| 52 |
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 |
| 53 |
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 |
| 54 |
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 |
| 55 |
Werkhuizen MIN Vzwwhmin.be
With over 60 years of experience, this company focuses on providing customized work opportunities for individuals with disabilities, specializing in packaging, shipping, assembly, and transportation |
14 |
| 56 |
IJsedal Maatwerkbedrijf vzwijsedal.be
IJsedal is a custom enterprise providing paid employment for individuals with disabilities, offering support, training, and development opportunities in a positive work environment |
13 |
| 57 |
Godog
A project aiming to rescue and rehabilitate abandoned dogs by offering training tailored to future owners, while funding through online services and quality products |
11 |
| 58 |
Vlaams Steunpunt Vrijwilligerswerk vzwvlaanderenvrijwilligt.be
Promoting and supporting volunteer work by informing organizations and volunteers, collaborating with the government and partners, and monitoring related legal and social developments |
7 |
| 59 | 5 | |
| 60 |
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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