| # | Company | Employees |
|---|---|---|
| 1 |
Belgian Defencemil.be
Deployment of professional soldiers worldwide for peacekeeping, conflict intervention, disaster relief, and restoring safety to support national and global stability. |
9,354 |
| 2 |
John Cockerilljohncockerill.com
Designs, integrates, modernizes, maintains equipment for energy, defense, steelmaking, environment, and industry, focusing on performance, innovation, and global reach. |
6,989 |
| 3 | 6,782 | |
| 4 |
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 |
| 5 |
EUROCONTROLeurocontrol.int
The company supports European aviation by delivering technical excellence and expertise in air traffic management, addressing industry challenges and promoting future evolution |
2,639 |
| 6 |
NATO Communications and Information Agency (NCIA)nato.int
NATO's technology and cyber experts with a team of 3,000 members across Europe and North America, safeguarding networks and providing critical capabilities to preserve peace and security |
2,545 |
| 7 |
Sonacasonaca.com
An aerospace entity specializing in aerostructures, services, innovation, space, and defense, offering tailored solutions, competitive pricing, and global support |
2,241 |
| 8 | 2,235 | |
| 9 |
Orizio Grouporizio-group.com
International aerospace ecosystem focusing on design, manufacturing, maintenance, and engineering services for aviation, space, and UAV markets through specialized high-tech subsidiary companies. |
1,609 |
| 10 | 1,493 | |
| 11 |
Ministère de la Défense
A law enforcement organization based in Belgium specializing in defense and security services at 1 Rue d'Evere, Evere |
1,400 |
| 12 |
FN Herstalfnherstal.com
Design and manufacture of advanced small arms, less lethal solutions, integrated weapon systems, and comprehensive support for global defense and law enforcement. |
984 |
| 13 |
AGP Groupagpglass.com
Develops and manufactures advanced glazing solutions for automotive, marine, and security industries, providing high-tech products for sustainable mobility. |
875 |
| 14 | 714 | |
| 15 |
Sabena Engineeringsabena-engineering.com
International MRO provider for Commercial Aviation and Government/Defense markets Offers maintenance and engineering solutions, including line maintenance, components repair, and engine services |
577 |
| 16 |
AGP eGlassagpglass.com
Global leader in manufacturing high-tech glazing solutions for automotive, marine, and security industries, driving sustainable mobility through innovation and international presence |
576 |
| 17 |
European Defence Agencyeda.europa.eu
Facilitates cross-border defence cooperation in Europe, harmonizing requirements, developing capabilities, engaging with industry, and strengthening Europe's defence technological and industrial base |
359 |
| 18 |
BMT Aerospacebmtaerospace.com
Specializing in manufacturing flight safety gearing and gearbox assemblies for various aerospace segments, with a focus on quality, innovation, and cost-effectiveness |
353 |
| 19 |
Aerospacelabaerospacelab.com
Specializing in manufacturing satellites ranging from 50 kg to 1000 kg for Earth Observation, Telecommunications, and Technology Demonstrations, achieving TRL9 status in 2021 #BuildingOnHeritage |
347 |
| 20 | 320 | |
| 21 |
ScioTeqxinxinnan.ovfdtr.cn
Specializing in advanced visualization technology for defense and aviation markets, offering ruggedized LCD displays and smart symbol generation capabilities for various applications |
305 |
| 22 |
Redwire Europerdw.com
Integrated aerospace and defense company building infrastructure, autonomous systems, and multi-domain operations through digital engineering, AI automation, and innovative space and airborne platforms. |
245 |
| 23 |
RHEA Grouprheagroup.com
Engineering solutions, system development and cybersecurity services for space, government and defense organizations across Europe and North America through diverse mission support programs. |
239 |
| 24 |
GDTech Groupgdtech-group.com
Integrated service provider for product development, specializing in design, numerical analysis, validation, and manufacturing across various industries with a focus on quality and flexibility |
207 |
| 25 |
Serco Space Services - Europe Careersserco.com
Provides workforce, engineering services, and software solutions to the space sector, specializing in recruitment for space engineering, earth observation, and satellite communications. |
203 |
| 26 |
ILIAS Solutionsilias-solutions.com
Specializes in software solutions for defence and humanitarian operations focusing on resource management, asset maintenance, and operational readiness optimization. |
179 |
| 27 |
NATO C3 Agencyncia.nato.int
The NATO C3 Agency supported NATO through scientific support and common funded acquisition of C4ISR capabilities, serving NATO nations and entities |
152 |
| 28 |
KNDS Belgiumknds.fr
Manufacturing direct fire ammunition for tanks, mortars, and artillery alongside rifle grenades for international defense forces, NATO, and the Belgian Army. |
149 |
| 29 |
Space Applications Services NV/SAspaceapplications.com
Designs, builds, integrates, and operates systems for crewed and uncrewed missions, Earth observation, exploration, science, and next-generation space infrastructure. |
144 |
| 30 | 132 | |
| 31 |
Intersoft Electronicsintersoft-electronics.com
Engineering firm designing and manufacturing radar analysis tools, providing system upgrades, integration, qualification testing, and maintenance services for diverse global radar systems. |
124 |
| 32 |
AVIOBOOKaviobook.aero
AVIOBOOK provides airlines with digital solutions for efficient operations, data security expertise, and sustainable growth, as a Thales Group company |
117 |
| 33 |
Simera Sensesimera-sense.com
Leading provider optical payloads, data analytics, and end-to-end solutions for small satellite imagers across RGB, video, multispectral, and hyperspectral applications. |
104 |
| 34 |
FN Browning Groupfnbrowninggroup.com
With over 130 years of experience, we develop and produce innovative small caliber light weapons for defense, security, hunting, and sports shooting |
104 |
| 35 |
Advionics nvadvionics.be
Specializing in advanced avionic solutions for the aviation industry, we offer high-tech electronic services with over 50 years of experience |
100 |
| 36 |
SPACEBELspacebel.com
Space systems and software engineering for Space infrastructure and Earth monitoring, specializing in designing, developing, and integrating IT space systems and delivering geospatial information services |
99 |
| 37 |
EHP (Euro Heat Pipes)ehp.space
Specializing in thermal and deployable systems for the space industry, this Belgian company offers design, manufacturing, and testing services with EN 9100 accreditation |
98 |
| 38 |
Centre Spatial de Liègecsl.uliege.be
A research center specializing in designing, integrating, and calibrating instruments, systems, and satellites for space programs, with expertise in various technical fields |
94 |
| 39 |
Cenaerocenaero.be
A private non-profit research center providing numerical simulation methods and tools for innovation in various industries, high performance computing, and software solutions |
89 |
| 40 |
DELTATECdeltatec.be
A high-tech design company specializing in advanced hardware and software technologies across TV broadcast, space, aeronautics, and industry sectors |
87 |
| 41 |
SR-TECHNICSsrtechnics.com
A provider of maintenance, repair, and overhaul services within the aviation industry, specializing in a wide range of aircraft services |
79 |
| 42 |
Lachausséelachaussee.com
Specializing in designing and building production machines for primers, ammunition, and detonators, along with providing training and know-how transfer services Exporting expertise globally |
78 |
| 43 |
Latecoere Belgium (TAC - Technical Airborne Components)latecoere.aero
Designs, manufactures, and supplies high-quality, custom engineered control, structural, and system rods and related peripheral parts for the aerospace industry. |
71 |
| 44 |
Antwerp Spaceantwerpspace.be
A Belgium-based company within the field of satellite communications, offering solutions for scientific, exploration, and telecommunication missions globally since 1962 |
70 |
| 45 | 70 | |
| 46 |
Caminoscaminos-online.com
Specializing in creating innovative security solutions, leveraging internal intellectual property and collaborating with global technology partners to address emerging threats |
68 |
| 47 |
EURENCO CLERMONTeurenco.com
Leading global producer of spherical powders for defense, security, sports, hunting, industrial tools, and ammunition reloading for enthusiasts worldwide. |
65 |
| 48 |
Theissen Training Systemstheissentraining.com
Global manufacturer of live-fire training applications developing small arms ranges, urban terrain facilities, and target systems for military and police qualifications. |
64 |
| 49 |
Lambda-X | Verhaert High-Techlambda-x.com
Specializing in optical system creation, development, and manufacturing for various industries, with a focus on innovation and customization for complex environments |
63 |
| 50 |
Leonardo Belgiumtaleez.com
A subsidiary specializing in aerospace, defense, and security with divisions in helicopters, aircraft, electronics, aerostructures, and cybersecurity, offering maintenance, material services, and innovative cybersecurity solutions |
59 |
| 51 |
Uniflyunifly.aero
Global provider of traffic management technology connecting authorities and pilots to safely integrate drone flights into airspace while managing real-time flight approvals. |
57 |
| 52 |
The Signalling Companythesignallingcompany.com
Building better, cost-effective, and flexible ETCS onboard solutions for heavy and light rail, ensuring future-proof and affordable signalling systems. |
50 |
| 53 |
Magics Technologiesmagics.tech
Develops integrated circuits and AI for intelligent sensing, motion control, and robotic automation, specifically for extreme environments like nuclear and space. |
46 |
| 54 |
GDTech Engineeringgdtech-group.com
GDTech France, a subsidiary of the Belgian group GDTech, specializes in scientific engineering services, including modeling, simulation, and research for product development |
44 |
| 55 |
Coexpaircoexpair.com
Aerospace composite solutions provider specializing in RTM and SQRTM processes through engineering services, mold production, injection systems, workcells, and certified pre-serial part manufacturing. |
41 |
| 56 |
dotOceandotocean.eu
Develops pioneering autonomous robotics control and advanced situational awareness software technology to improve productivity, cost efficiency and safety for maritime and security industries. |
40 |
| 57 |
Finabel - The European Land Force Commanders Organisationfinabel.org
An international organization promoting interoperability between European land forces through collaboration among 24 Member States' Chiefs of Staff |
37 |
| 58 |
CASTINGPARcastingpar.com
Manufacturer of investment castings and sand castings in Titanium, steel, and stainless steel alloys, offering finish machined castings in various metals |
36 |
| 59 |
Dumoulin Aerodumoulin-aero.com
Specializing in fine hunting guns, the company diversified into manufacturing titanium and steel parts for aircrafts with precision, quality, and certifications |
35 |
| 60 |
Shur-Lok Internationalpccfasteners.com
Specializing in mechanical fastening elements for the aerospace industry for over 55 years, offering a range of products that have become industry standards worldwide |
35 |
| 61 |
arcsecarcsec.space
Specializing in precise attitude determination and control systems for small satellites, ensuring high accuracy in space operations |
34 |
| 62 |
Britte-Mustadbritte.be
A precision machining company with over 100 years of experience, specializing in a variety of industries including aerospace, space, and defense Offering expertise in industrializing products globally |
31 |
| 63 |
FERONYL saferonyl.com
Specialist in injection molding of polymers, composites, and metal alloys, providing development and manufacturing of technical components for land and air applications. |
30 |
| 64 |
Mockelmockel-precision.be
Specializing in high precision mechanics, MOCKEL serves defense, aerospace, and space industries with state-of-the-art machinery, expertise, and comprehensive production services |
30 |
| 65 |
Sobelcompsobelcomp.be
Designs and manufactures composite material parts for clients across various high-value markets, including aviation, defense, and industrial sectors. |
30 |
| 66 |
Senhivesenhive.com
Expertise in sensing, edge computing, and communication to create reliable mission-critical solutions focusing on innovation, reliability, and high resource efficiency for various technological applications. |
28 |
| 67 |
Mustad Belgiummustad.be
Specializing in high precision mechanics, the company delivers mechanical components to various sectors using cutting-edge technologies and a team of qualified technicians |
28 |
| 68 |
VEOWARE SPACEveowarespace.com
Miniaturizes and modularizes control moment gyroscopes for small satellite attitude control, enhancing agility and providing rapid, scalable solutions without custom-made options. |
26 |
| 69 |
Dynali Helicopter Companydynali.com
Manufactures H3 Sport ultralight helicopters and helicopter-drone platforms. Provides companies worldwide with helicopter or drone platforms, integrating payloads. |
23 |
| 70 | 23 | |
| 71 |
EDGXedgx.space
Develops advanced onboard artificial intelligence technology for space applications, enabling high-performance processing and autonomous capabilities for satellites and next generation orbital missions. |
22 |
| 72 |
NATO Science & Technology Organizationnato.int
Delivering innovation, advice, and scientific solutions to meet NATO's security needs, maintaining military and technological edge for current and future challenges |
20 |
| 73 |
Redu Space Servicesses.com
A Belgian company specializing in advanced satellite communication systems and services, offering maintenance & operations for ESA Centre in REDU |
20 |
| 74 |
BATS (Belgian Advanced Technology Systems) S.Abats.be
Designs, develops, and supplies advanced technology solutions for defense and homeland security, specializing in surveillance radars and integrated sensor systems. |
20 |
| 75 |
SETTAS Titanium Centrifugal CastingsSETTAS.be
Leading provider of titanium centrifugal casting foundry services for aerospace, defense, and industrial markets, offering investment castings and sand castings in various alloys |
19 |
| 76 |
Celestia Antwerp BVcelestia-antwerp.be
With over 60 years of experience in space technology, they provide innovative satellite integration solutions for a variety of products within the industry |
19 |
| 77 |
Hybrid Corehybridcore.eu
Hybrid Core specializes in guiding organizations through challenging and risky operating environments to ensure success |
18 |
| 78 |
Aetherspaceaetherspace.be
Designing, building, and launching CubeSats into space, with a focus on creating CubeSats that can survive atmospheric re-entry for sample return missions |
17 |
| 79 |
ALSO Spacealso.space
Provides independent consulting services in Earth Observation and geo-data to European institutions and companies, covering the entire value chain from satellites to applications. |
16 |
| 80 |
TEKSAM COMPANY NVteksamco.com
Design and manufacture of telescopic masts, portable LED lighting units, and maintenance-free compressors for military communications, broadcasting, surveillance, and emergency vehicle applications. |
15 |
| 81 |
LS INNOVENTA bvlsinnoventa.com
Specializing in importing and distributing medical and tactical solutions to professional markets such as military, law enforcement, EMS, healthcare, and hospitals |
14 |
| 82 |
BEBLUE Cryotech SAbeblue.be
European provider of cryogenic testing services with expertise in material characterization, components testing, and engineering for aerospace, mobility, energy, maritime, and engineering industries |
14 |
| 83 |
DroneMatrixnugroup.no
Autonomous drone-in-a-box solutions for ports, providing remote aerial security and data collection through AI-driven technology for safety and efficient industrial site inspection. |
13 |
| 84 | 13 | |
| 85 |
SUB-ALLIANCEsub-alliance.com
Four manufacturing divisions with expertise in plastic, composite, polymer, metal part development, prototyping, production, and assembly. Also gears, turning, tooling. |
12 |
| 86 |
PJK precision mechanicspjkprecision.be
Precision mechanics company specializing in machining high-precision components for industries such as aerospace, defense, medical technology, and machinery, offering competitive prices and quality services |
12 |
| 87 |
Hamofa Metal Machininghamofa-metal.be
Metal machining company specializing in prototyping, tooling, and reverse engineering services |
10 |
| 88 |
COBBS BELUX BVcobbsbelux.com
The company markets, sells, and distributes premium specialist equipment and Defence materiel to Law Enforcement and Armed Forces, focusing on innovative solutions |
10 |
| 89 |
OIP Space Instrumentsoipspace.be
Specializing in high-end Electro-Optical Spaceborne Solutions, this company designs and produces spectrometers, cameras, and instrumentation for planetary observation, atmospheric analysis, and scientific research |
10 |
| 90 |
GILLAM powered by Infratechgillam.be
A leading company established in 1974, specializing in electronic/electromechanical products for energy, transportation, space, and telecom sectors with tailored solutions and innovative products |
9 |
| 91 |
SNECMA SERVICES BRUSSELS NV
Transportation/trucking/railroad company located in Zaventem, Belgium, specializing in providing services at Brussels Airport |
8 |
| 92 |
BeCOVERbecover.eu
An aerodynamic test center for new generation civil and military aircraft engine compressors, located in Liège, validating breakthrough innovations for environmental challenges. |
8 |
| 93 |
Rayferencerayference.eu
Innovative SME specializing in Earth Observation, offering expertise in radiative transfer modeling, retrieval excellence, radiometric calibration, metrology, uncertainty propagation, and mission preparation |
8 |
| 94 |
Genitek Engineeringgenitek.be
Belgian firm specialized in research and development for electronic design. Provide tailor-made solutions for partners in medical, railway, automotive, avionics and defense sectors. |
7 |
| 95 | 7 | |
| 96 |
Sonaca Engineering Servicestestcenter.sonaca.com
SES offers fully integrated engineering solutions including design, certification, manufacturing, and after sales support for aerospace, ground transport, defense, and wind industries |
5 |
| 97 |
SME4SPACEsme4space.org
Advocates for European Space SMEs, facilitating their access to space activities, ESA, and EU programs, while also fostering cooperation and information sharing among members. |
5 |
| 98 |
Intersoft Electronics Servicesskyrf.aero
The company provides global telecommunication engineering support, specializing in radar systems analysis, design, installation, testing, optimization, maintenance, and project management |
5 |
| 99 |
Association of European Space Research Establishments (ESRE)esre-space.org
Facilitating collaboration and coordination among European RTOs for space research, enhancing industry partnerships, and promoting global competitiveness in the European space sector |
4 |
| 100 |
RENI AVIATIONreni-aviation.com
Provides specialized airborne solutions, crisis response, and training support for government agencies, aid organizations, and military forces using highly experienced aviation professionals. |
4 |
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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 24, 2026.
More company lists in Belgium
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