| # | Company | Employees |
|---|---|---|
| 1 | 435 | |
| 2 |
AKQA Brusselsakqa.com
A collective of diverse experts who prioritize outstanding ideas in communication and beyond, advocating for innovation and creativity in solutions |
289 |
| 3 | 248 | |
| 4 |
Studentstudent.be
Specializes in multichannel recruitment and advertising, helping companies build authentic brands and empowering students to make informed future choices. |
197 |
| 5 |
Publicis Groupe Belgiumpublicisgroupe.be
They facilitate positive progress through collective creativity, transforming change into opportunities |
183 |
| 6 |
Vlan Mediasudinfo.be
A media outlet combining broad public appeal with precise local targeting, focusing on local news, events, and deals from local businesses |
123 |
| 7 |
Demonstr8demonstr8.com
A Brussels-based agency specializing in experiential marketing, creating gripping stories and interactive experiences for real brands and audiences |
105 |
| 8 |
ACT*altavia-act.com
A Brussels-based communications agency specializing in retail, offering omni-channel solutions with in-house digital skills Acquired by Altavia in 2015 |
90 |
| 9 |
IAB Europeiabeurope.eu
European association representing digital marketing and advertising, promoting collaboration, standards, and frameworks for thriving business in Europe. |
88 |
| 10 |
Rossel Advertisingrosseladvertising.be
Rossel Advertising specializes in creating close, empathetic, and trustworthy connections with customers through innovative media solutions and quality relationships |
80 |
| 11 |
Havas Belgiumbe.havas.com
A creative agency focused on creating meaningful connections between people and brands through creativity, media, and innovation within an integrated structure |
62 |
| 12 |
lielenslielens.be
This company helps brands enhance people's lives and the planet through their products or services |
59 |
| 13 |
BAM - Belgian Association of Marketingmarketing.be
Community supporting Belgian marketers and companies to implement meaningful marketing practices, enhancing professional and brand relevance through collaboration. |
54 |
| 14 |
IPM Advertisingipmadvertising.be
Advertising network offering press and web solutions through various media outlets like newspapers, magazines, internet, radio, and TV with a focus on tailored offerings |
53 |
| 15 |
European Association of Communications Agencies (EACA)eaca.eu
Representing full-service advertising and media agencies in Europe, promoting honest advertising, high professional standards, and encouraging cooperation within the industry Subscribe to newsletter |
46 |
| 16 |
UBA Belgiumubabelgium.be
Belgian organization representing 375 companies, focusing on protecting brand interests, knowledge exchange, innovation, and facilitating strong and sustainable brands |
44 |
| 17 |
Satisfactionthe-satisfaction.com
A modern advertising agency based in Brussels, specializing in strategic branding, creative concepts, and digital activations for global brands worldwide |
41 |
| 18 |
socialskysocialsky.eu
Specializing in digital and social strategy, our company propels clients into the digital era by identifying needs, implementing strategies, and upscaling competencies |
41 |
| 19 |
Air BrusselsβCertified B Corpβ’air.be
Belgium's leading independent agency partners with McCann Group, providing strategic, creative, and sustainable solutions for brands, with a focus on driving action and inspiring change |
36 |
| 20 |
EVOevo-agency.eu
Specializes in data-driven digital strategies, integrating AI and creativity to optimize brand performance and ensure sustainable client growth. |
32 |
| 21 |
ICF Mostraicf.com
A strategic partner specializing in engagement and transformation, creating impactful change to connect organizations with the people they serve |
32 |
| 22 |
Social Lab Groupogilvy.com
This company helps brands enhance their social media presence through various services including content management and performance campaigns, with offices worldwide |
30 |
| 23 |
The Right Streettherightstreet.digital
A consulting firm that specializes in digital strategies, creative services, marketing, and advocacy to help clients navigate the digital landscape effectively |
28 |
| 24 |
DIGIZIKdigizik.com
This company creates authentic stories and experiences that impact culture, bringing communities, creators, and brands together to achieve business goals |
27 |
| 25 |
Efluenz EUefluenz.eu
A full-service Influencer Marketing Agency in Europe, specializing in nano & micro influencers to help brands increase ROI and achieve goals |
26 |
| 26 |
iDKLIC a STRATACACHE companyidklic.com
iDklic is a digital marketing specialist for retail pharmacy, providing technology and services to enhance customer communication, trigger impulse purchases, and improve healthcare outcomes |
26 |
| 27 |
4P square (part of EOLIS)eolisgroup.com
A leading consulting firm in Belgium specializing in marketing and sales consultancy, interim management, and strategic advice for top companies |
16 |
| 28 |
darwin BBDObbdo.be
Boutique agency in Brussels leveraging diverse media, tools, and resources to drive brand growth within the BBDO Worldwide network. |
13 |
| 29 |
root:root-consulting.be
A marketing data and technology consulting firm offering customized advice to navigate complex media challenges and leverage big data for business results |
7 |
| 30 |
Agence Bonjour,bonjourinternet.com
An independent communication agency in Brussels, specializing in advocacy for social issues, empowering citizens, and creating brand strategies and visuals |
6 |
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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 9, 2026.
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- Insurance companies in Brussels 42
- Non-profit Organizations companies in Brussels 30