The companies listed are primarily large manufacturing firms based in Brussels, with a strong presence in chemical and pharmaceutical industries. Solvay specializes in chemical solutions, UCB focuses on biopharmaceuticals, and Umicore innovates in materials technology for sustainability. Toyota Motor Europe is a major player in car manufacturing, while Syensqo contributes to sustainable high-performance solutions. SABCA designs and builds aircraft and space launchers.
A notable pattern is the concentration of these significant manufacturing operations within Brussels, covering diverse sectors from chemical and pharmaceutical production to automotive and aerospace components. Many of these companies, such as Solvay (1863), Umicore (1805), and Tessenderlo Group (1919), were founded in the 19th and early 20th centuries, indicating a long-standing industrial tradition.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Solvaysolvay.com
Develops essential chemical solutions including soda ash and peroxides for cleaner mobility, healthier living, and sustainable infrastructure across global industrial sectors. |
16,499 | |||
| 2 | 14,875 | ||||
| 3 |
Aliaxisaliaxis.com
Global leader in advanced piping systems for various applications, offering sustainable solutions for water and energy needs globally through innovation and operational excellence |
7,776 | |||
| 4 |
Umicoreumicore.com
Innovating materials technology for sustainable value, reducing emissions, advancing car technology, and driving towards a circular economy for a better life |
6,685 | |||
| 5 |
Syensqosyensqo.com
A leading science company revolutionizing technology to create sustainable, high-performance solutions for various industries worldwide with a global team of experts |
6,082 | |||
| 6 |
Toyota Motor Europetoyota-europe.com
A leading Japanese car manufacturer in Europe, with 30 National Marketing and Sales Companies, 3,000 sales outlets, and nine manufacturing plants |
3,196 | |||
| 7 |
Tessenderlo Grouptessenderlo.com
Global industrial group specializing in agriculture, bio-residual valorization, machinery, mechanical engineering, electronics, energy, and water-focused industrial solutions. |
1,800 | |||
| 8 |
Schr茅derschreder.com
Leading provider of smart outdoor lighting solutions worldwide, specializing in innovative, sustainable infrastructure for Smart Cities through energy-efficient LED technology and control systems |
1,002 | |||
| 9 |
Recticelrecticel.com
Innovative insulation solutions for buildings and acoustic needs, contributing to a carbon-free economy and better quality of life |
879 | |||
| 10 | 714 | ||||
| 11 |
Fine Biscuits Company (FBC) Group
European premium biscuit group with iconic brands like Delacre and Kjeldsens, known for butter cookies and chocolate-coated biscuits Emphasis on innovation and quality |
597 | |||
| 12 |
Spadelspadel.com
A European group that produces and markets natural mineral waters, spring waters, and mineral water soft drinks focused on sustainability and local products |
379 | |||
| 13 |
Stanley/Stellastanleystella.com
European leader in premium sustainable blank apparel, focusing on innovation, quality, fair labor, and environmental responsibility in textile production. |
282 | |||
| 14 |
Cowboycowboy.com
Design and manufacture connected electric bikes for urban riders, enhancing mobility with award-winning, innovative, and mindful transportation solutions across multiple countries. |
246 | |||
| 15 | 231 | ||||
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 |
Volvo Trucks Belgium & Luxembourgvolvotrucks.be
A global manufacturer of trucks with a focus on quality, safety, and environmental responsibility, sold and serviced in over 140 countries |
224 | |||
| 17 |
MSD Belgiummsd-belgium.be
A pharmaceutical company focused on research and innovation to improve human and animal health with a commitment to integrity and diversity |
223 | |||
| 18 |
Stellantis Beluxstellantis.com
A global mobility player providing distinctive, affordable, and sustainable mobility solutions through a diverse brand portfolio and passionate workforce |
88 | |||
| 19 |
Cenergy Holdingscenergyholdings.com
Investment group focusing on energy transfer, renewables, and data transmission, aiming for a low carbon economy and leading roles in industrial sectors |
64 | |||
| 20 |
Brussels Beer Projectbeerproject.be
Crafting modern Belgian beers with a contemporary, vibrant approach to revive and innovate traditional Belgian beer culture. |
53 | |||
| 21 |
Trane Europetrane.eu
The company specializes in manufacturing and servicing HVAC-R systems and controls to create efficient and comfortable work environments while reducing energy consumption and costs |
45 | |||
| 22 |
Maison WITTAMERwittamer.com
A century-old institution offering innovative pastries, chocolates, and catering services, striving to fulfill every client's whim with professionalism and adaptability |
34 | |||
| 23 |
CAF Belgiumbreezy.hr
Global experts in designing, manufacturing, maintaining, and supplying various types of rolling stock material and railway system equipment and components |
25 | |||
| 24 |
HASA OPTIX Belgiumhasaoptix.com
Specializing in ophthalmic surgery, the company designs premium single-use instruments for anterior and posterior segment surgeries, focusing on precision, procurement reliability, and patient care |
13 | |||
| 25 |
Omya SA/NVomya.com
Global producer of industrial minerals, fillers, and pigments, providing product solutions for various industries worldwide with a commitment to quality and customer satisfaction |
11 | |||
| 26 |
MAD LABmadlab.brussels
Production and sale of organic crackers and biscuits made in Belgium, focusing on natural ingredients and quality craftsmanship. |
11 | |||
| 27 |
URM| Universal Rubber Manufacturingurm.be
A reliable partner in developing and producing high quality rubber molded articles and compounds, with strong reputation and global reach |
6 | |||
| 28 |
BISCUITS DELACREdelacre.com
Production and sale of Belgian fine biscuits with 40 varieties, distributed in over 15 countries, focusing on quality and tradition. |
5 | |||
| 29 |
2INGIS2ingis.com
Innovative company providing CAD software and personalized surgical guides for dental implant placement, ensuring precision surgery for practitioners and patients |
3 | |||
| 30 |
La Baie Coffee Roasterslabaiecoffee.com
Artisan specialty coffee roastery focused on quality, sustainability, and transparency Committed to paying fair prices to farmers and eliminating industrial capsules |
2 | |||
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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.
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