These Brussels-based companies are primarily marketing and communications agencies, ranging from large established firms to younger, specialized outfits. They offer a broad spectrum of services, including graphic design, event management, public relations, translation, and advertising. Companies like Graphic Designer, with 1257 employees, create visual and multimedia solutions, while Edificio organizes events in heritage venues.
The data shows a strong concentration of advertising services, with firms such as AKQA Brussels focusing on innovative communication ideas and Publicis Groupe Belgium transforming change into opportunities through collective creativity. Other notable companies include JONCKERS, providing AI-powered translation, and ESN, a communications agency offering media and consultancy services.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Graphic Designerthomaslammens-gd.com
Specializing in graphic design, web design, mobile design, audiovisual creation, and photography services Creating innovative visual and multimedia solutions for businesses |
1,257 | |||
| 2 |
Edificioedificio.be
Event & cultural agency specializing in organizing events in heritage venues to preserve history and offer guests a unique experience |
783 | |||
| 3 | 395 | ||||
| 4 |
JONCKERSacclaro.com
The company provides quality translation and localization services since 1994 Their platform, WordsOnline, offers AI-powered translation solutions for global businesses |
368 | |||
| 5 |
AKQA Brusselsakqa.com
A collective of diverse experts who prioritize outstanding ideas in communication and beyond, advocating for innovation and creativity in solutions |
289 | |||
| 6 |
Connexionconnexion.eu
Agency creates and localizes content in over 30 languages, designs and produces online/offline communication, and develops technologically advanced communication solutions for clients. |
222 | |||
| 7 |
Studentstudent.be
Specializes in multichannel recruitment and advertising, helping companies build authentic brands and empowering students to make informed future choices. |
197 | |||
| 8 |
Publicis Groupe Belgiumpublicisgroupe.be
They facilitate positive progress through collective creativity, transforming change into opportunities |
183 | |||
| 9 |
VO Groupvo-group.be
Creation of impactful content and sustainable events to engage audiences, promote social responsibility, and support European and global communication goals. |
182 | |||
| 10 |
visitbrusselsvisit.brussels
Destination marketing agency promoting Brussels as a cosmopolitan capital for conferences, events, and tourism, showcasing its diverse culture and global connections |
181 | |||
| 11 |
MODELEpixissive.com
An international modeling agency providing male, female, and plus-size fit models in 28 European cities, with a focus on communication, reliability, and professionalism |
139 | |||
| 12 |
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 | |||
| 13 |
Uniway_Belgiumuniway.be
A Belgian digital solutions agency specializing in web development, e-commerce, and custom solutions, with a focus on efficiency and security |
83 | |||
| 14 |
BeInfluence Europebeinfluence.eu
A rapidly growing content creator company in Europe with a large community of influencers and numerous high-profile clients for influencer marketing campaigns |
69 | |||
| 15 |
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 | |||
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. | |||||
| 16 |
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 | |||
| 17 |
MCI Brusselswearemci.com
Global engagement and marketing agency specializing in live and virtual events, strategic communications, and community solutions to drive innovation and growth worldwide |
53 | |||
| 18 |
Forum Europeforum-europe.com
Specializing in policy conferences since 1989, this company organizes meticulously planned events in Brussels and globally, engaging stakeholders and policymakers on pressing European issues |
45 | |||
| 19 |
Satisfactionthe-satisfaction.com
A modern advertising agency based in Brussels, specializing in strategic branding, creative concepts, and digital activations for global brands worldwide |
41 | |||
| 20 |
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 | |||
| 21 |
Air Brussels⎜Certified B Corp™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 | |||
| 22 |
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 | |||
| 23 |
DIGIZIKdigizik.com
This company creates authentic stories and experiences that impact culture, bringing communities, creators, and brands together to achieve business goals |
27 | |||
| 24 |
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 | |||
| 25 |
DHS Digitaldhsdigital.eu
Specialized in Facebook advertising, assisting e-commerce and digitally native vertical brands in accelerating their growth through full-funnel acquisition strategies focused on ROI. |
22 | |||
| 26 |
LEADISTleadist.eu
A performance advertising agency specializing in custom strategies, conversion optimization, cross-device tracking, and fair attribution models for online businesses |
8 | |||
| 27 |
La Fabrikalafabrika.be
Design store, webshop, and creative studio, offering a curated selection of interior design products, hosting events, and providing A-to-Z interior design services. |
8 | |||
| 28 |
Nextage.ainextage.ai
Creative-first, AI-accelerated partner helping brands and agencies produce high-impact creative assets faster, at scale, and with full creative control. |
8 | |||
| 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 |
Queserser & Company EUqueserser.eu
A creative communications, marketing, and production company based in Japan with multiple branches globally Specializing in omnichannel optimization and foreign market entry |
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 Nov 11, 2026.
More company lists in Brussels
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- Multinational companies in Brussels 326
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- Public sector organisations in Brussels 79
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- IT services companies in Brussels 63
- Companies with in-house R&D in Brussels 60
- Financial Services companies in Brussels 54
- SaaS companies in Brussels 54
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- Insurance companies in Brussels 49
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- Non-profit Organizations companies in Brussels 38
- Subscription businesses in Brussels 38
- Advertising Services companies in Brussels 34
- Hotel and hospitality groups in Brussels 31
- Manufacturers in Brussels 30
- Recruitment and staffing agencies in Brussels 29