# Top 45 cybersecurity companies in Flanders
Tamtam tracks 45 cybersecurity companies headquartered in Flanders. This list ranks all of them by number of employees on LinkedIn, led by Cegeka, Intigriti and Telenet Business. Their median headcount is 24. Half of them were founded in 2016 or later. The most common headquarters are Antwerp (6), Kontich (5) and Leuven (5).
The cybersecurity companies in Flanders are primarily IT services and software development firms. The largest among them include Cegeka, an IT solutions provider, Intigriti, which focuses on vulnerability finding and fixing, and Telenet Business, offering digital solutions including security. Other notable companies are Lansweeper, providing an IT asset management platform, and Guardsquare, a mobile application security solutions provider.
Most of these companies are mid-sized to large, with Cegeka having over 5000 employees. There is a strong presence of companies founded in the early 2000s, such as Telenet Business (2002) and Lansweeper (2004), indicating a period of growth in the region's IT and cybersecurity sectors. The companies are spread across various cities in Flanders, including Hasselt, Antwerp, Mechelen, and Leuven.
๐ง๐ช Flanders ยท 45 companies ยท Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Cegeka](https://www.tamtam.ai/c/cegeka) (cegeka.com)
A family-owned IT solutions provider focused on creating personalized customer experiences, aiming to become the leading European orchestrator of digital business platforms | IT Services and IT Consulting | ๐ง๐ช Hasselt | 5,167 | 1992 |
| 2 | [Intigriti](https://www.tamtam.ai/c/intigriti) (intigriti.com)
Empowering large organizations to find and fix vulnerabilities using a platform and global security researchers, preventing costly breaches through various security solutions. | Computer and Network Security | ๐ง๐ช Antwerp | 782 | 2016 |
| 3 | [Telenet Business](https://www.tamtam.ai/c/telenet-business) (www2.telenet.be)
Telenet Business provides Belgian entrepreneurs with digital solutions including connectivity, network, security, and IT services, ensuring a smooth digital flow for businesses of all sizes | Telecommunications | ๐ง๐ช Mechelen | 656 | 2002 |
| 4 | [AXI IT Services](https://www.tamtam.ai/c/axi-it-services) (axi.be)
Innovative software and IT solutions provider for various industries, helping clients succeed and achieve their vision with offices in Netherlands and Belgium | IT Services and IT Consulting | ๐ง๐ช Willebroek | 497 | 1985 |
| 5 | [Lansweeper](https://www.tamtam.ai/c/lansweeper) (lansweeper.com)
Provides a centralized platform for managing IT assets, enhancing visibility, automating tasks, and supporting cybersecurity through comprehensive asset discovery and management. | Software Development | ๐ง๐ช Merelbeke | 422 | 2004 |
| 6 | [Trustteam Belgiรซ / Belgique](https://www.tamtam.ai/c/trustteam-belgie-belgique) (trustteam.eu)
Leading provider of IT managed services offering cloud, infrastructure, networking, security, software, VoIP, and support solutions with multiple certified data centers | IT Services and IT Consulting | ๐ง๐ช Kortrijk | 275 | 2002 |
| 7 | [Aikido Security](https://www.tamtam.ai/c/aikido-security) (aikido.dev)
Automated platform for secure code, cloud, and runtime environments with AI-driven vulnerability detection and remediation for engineering teams. | Software Development | ๐ง๐ช Ghent | 249 | 2022 |
| 8 | [VanRoey](https://www.tamtam.ai/c/vanroey) (vanroey.be)
IT-services provider specializing in digitalization through automation, software, services, and Hybrid-IT infrastructure, prioritizing security and data protection for companies' digital transformation | IT Services and IT Consulting | ๐ง๐ช Turnhout | 228 | 1993 |
| 9 | [ConXioN](https://www.tamtam.ai/c/conxion) (conxion.be)
A Flemish ICT service provider offering hardware, infrastructure, security, and software solutions to SMEs, Midrange, and Enterprise segments with strong partnerships and innovative Experience Center | IT Services and IT Consulting | ๐ง๐ช Deerlijk | 195 | 1997 |
| 10 | [Guardsquare](https://www.tamtam.ai/c/guardsquare) (guardsquare.com)
A leading provider of mobile application security solutions, offering a comprehensive approach to protecting apps through code hardening and real-time threat visibility | Software Development | ๐ง๐ช Leuven | 180 | 2014 |
| 11 | [Cegeka Belgium (CTG)](https://www.tamtam.ai/c/cegeka-belgium-ctg) (cegeka.com)
CTG accelerates digital transformation by providing innovative solutions and services to achieve business and IT outcomes with agility and confidence | Software Development | ๐ง๐ช Diegem | 117 | |
| 12 | [ACEN](https://www.tamtam.ai/c/acen-kontich) (acen.eu)
Offers tailored, end-to-end solutions for cybersecurity needs, focusing on providing comprehensive and suitable services for protection. | Technology, Information and Internet | ๐ง๐ช Kontich | 91 | |
| 13 | [Phished](https://www.tamtam.ai/c/phished) (phished.io)
Offers AI-powered cybersecurity training, personalized phishing simulations, and threat intelligence to reduce human error and improve organizational security posture. | Computer and Network Security | ๐ง๐ช Leuven | 81 | 2018 |
| 14 | [Toreon](https://www.tamtam.ai/c/toreon) (toreon.com)
Independent consultants providing information security advice to help organizations safely leverage technology, make informed decisions, and achieve digital goals with confidence and trust. | Computer and Network Security | ๐ง๐ช Antwerp | 69 | 2013 |
| 15 | [SecWise](https://www.tamtam.ai/c/secwise) (secwise.be)
Provide expert services, guidance in security, and compliance for cloud and mobile-first environments, developing mature cybersecurity strategies and architectures. | IT Services and IT Consulting | ๐ง๐ช Leuven | 39 | 2018 |
| 16 | [Infinigate Belgium](https://www.tamtam.ai/c/infinigate-belgium) (infinigate.com)
Value-add distributor of leading-edge cybersecurity solutions across EMEA, with dedicated technical experts providing secure network and cloud protection for SMBs and enterprises | Computer and Network Security | ๐ง๐ช Mechelen | 39 | 1991 |
| 17 | [axl & trax](https://www.tamtam.ai/c/axl-and-trax) (axl-trax.com)
Specializes in providing security solutions for well-managed organizations utilizing SAP systems, offering expertise tailored to enhance protection and minimize vulnerabilities | IT Services and IT Consulting | ๐ง๐ช Hasselt | 37 | 1997 |
| 18 | [Mind](https://www.tamtam.ai/c/mind) (mind.be)
A consultancy providing engineering services, training, and support in Linux, Android, and open-source software for embedded systems to international clients | Software Development | ๐ง๐ช Leuven | 35 | 1999 |
| 19 | [Interligo](https://www.tamtam.ai/c/interligo) (interligo.be)
This company specializes in personalized network solutions to help businesses achieve their goals within budget, focusing on security, user access, collaboration, and more | IT Services and IT Consulting | ๐ง๐ช Kontich | 34 | 2013 |
| 20 | [Sertalink](https://www.tamtam.ai/c/sertalink) (sertalink.com)
Specialized in cutting-edge security solutions including identity and access management, data governance, data loss prevention, and remote access session monitoring for IT infrastructures | IT Services and IT Consulting | ๐ง๐ช St-Niklaas | 32 | 2016 |
| 21 | [The Collective Consulting](https://www.tamtam.ai/c/the-collective-consulting) (thecollective.eu)
A highly-skilled Microsoft Gold Partner specializing in security, compliance, endpoint management, messaging, Microsoft Teams voice, and meetings Employs certified professionals for quality services | IT Services and IT Consulting | ๐ง๐ช Lochristi | 32 | 2019 |
| 22 | [Exclusive Networks - Belgium](https://www.tamtam.ai/c/exclusive-networks-belgium) (linktr.ee)
Global cybersecurity specialist providing partners and customers unique service portfolios, technical know-how, managed security, and training through a curated leading vendor network worldwide. | Computer and Network Security | ๐ง๐ช Duffel | 31 | |
| 23 | [Resilient Security](https://www.tamtam.ai/c/resilient-security) (resilientsecurity.be)
Specializing in cyber security, we work to ensure every business is protected against threats and risks in the digital landscape | IT Services and IT Consulting | ๐ง๐ช Antwerp | 24 | 2020 |
| 24 | [Nomios Belgium](https://www.tamtam.ai/c/nomios-belgium) (nomios.be)
This company develops secure and connected digital solutions and services, managing infrastructure and providing innovative security and network solutions for businesses | Computer and Network Security | ๐ง๐ช Zaventem | 22 | |
| 25 | [AXS Guard](https://www.tamtam.ai/c/axs-guard) (axsguard.com)
Belgian Cybersecurity specialist providing secure network connections, protection against cyber threats, VPN services, compliance monitoring, and managed security solutions for enterprises | Computer and Network Security | ๐ง๐ช Mechelen | 22 | 1996 |
| 26 | [SHIELD vzw](https://www.tamtam.ai/c/shield-vzw) (shield-vzw.be)
Shield offers proactive IT expertise in cybersecurity, collaborating with healthcare and educational institutions to develop solutions against cyberthreats | IT Services and IT Consulting | ๐ง๐ช Hasselt | 21 | 2023 |
| 27 | [Jimber](https://www.tamtam.ai/c/jimber) (jimber.io)
Protecting companies with user-friendly, innovative, and affordable cybersecurity solutions, ensuring their digital safety and operational continuity against threats. | IT Services and IT Consulting | ๐ง๐ช Oostkamp | 21 | 2018 |
| 28 | [ActWise](https://www.tamtam.ai/c/actwise) (actwise.eu)
Specializing in identity security, ActWise helps companies protect against cyber threats with a privilege-centric approach, defending what matters most | IT Services and IT Consulting | ๐ง๐ช Kontich | 21 | 2021 |
| 29 | [Silta](https://www.tamtam.ai/c/silta) (silta-ict.be)
Specializing in designing, implementing, and managing advanced network infrastructures, focusing on custom solutions that seamlessly integrate with business objectives Also offering scalable cloud solutions | IT Services and IT Consulting | ๐ง๐ช Antwerp | 20 | |
| 30 | [Hybrid Core](https://www.tamtam.ai/c/hybrid-core) (hybridcore.eu)
Hybrid Core specializes in guiding organizations through challenging and risky operating environments to ensure success | Technology, Information and Internet | ๐ง๐ช Zaventem | 18 | 2020 |
| 31 | [Barbarians](https://www.tamtam.ai/c/barbarians) (barbarians.io)
Provides cloud-first, managed SIEM system with integrated AI for enterprise security incident monitoring, alerting & reporting, deployed on AWS, Azure, or Google Cloud | Software Development | ๐ง๐ช Ghent | 16 | 2018 |
| 32 | [Crimson7](https://www.tamtam.ai/c/crimson7) (crimson7.io)
Providing advanced cybersecurity solutions through research, focusing on attack intelligence and security operations to combat evolving threats effectively. | Computer and Network Security | ๐ง๐ช Zaventem | 13 | 2024 |
| 33 | [Secure IT, a division of INTERIT](https://www.tamtam.ai/c/secure-it-a-division-of-interit) (secure-it.be)
Specialized in IT security, providing top-notch solutions for secure IT infrastructures Guarantees maximum security and 24/7 monitoring, constantly staying updated in the IT security market | Computer and Network Security | ๐ง๐ช Wetteren | 12 | 2005 |
| 34 | [Splynter](https://www.tamtam.ai/c/splynter) (splynter.be)
Improves security posture through vendor-independent risk-based approaches, security architecture, technical expertise, and specialized training to help organizations understand and combat cyber adversaries. | IT Services and IT Consulting | ๐ง๐ช Kontich | 12 | |
| 35 | [Uptime Security](https://www.tamtam.ai/c/uptime-security) (bowtiesecurity.com)
The company provides comprehensive cybersecurity solutions, allowing businesses to focus on their core operations by managing cybersecurity challenges efficiently | Security and Investigations | ๐ง๐ช Antwerp | 9 | 2023 |
| 36 | [aspida](https://www.tamtam.ai/c/aspida) (aspida.be)
Specializing in Fortinet Security Fabric, this company provides innovative cybersecurity solutions for businesses, focusing on defense strategies and expertise | Computer and Network Security | ๐ง๐ช Bruges | 8 | 2022 |
| 37 | [Outpost24 Benelux (ex-Sweepatic)](https://www.tamtam.ai/c/outpost24-benelux-ex-sweepatic) (outpost24.com)
A European leader in External Attack Surface Management, automating mapping, monitoring, and managing internet-connected assets and risks for cyber resilience | Computer and Network Security | ๐ง๐ช Leuven | 8 | 2016 |
| 38 | [ACEN MDR (Formerly Nynox)](https://www.tamtam.ai/c/acen-mdr-formerly-nynox) (nynox.eu)
A cybersecurity company offering SOC as a Service, MDR, SIEM, CSIRT, digital forensics, EDR, XDR, threat intelligence, vulnerability management, and more | Computer and Network Security | ๐ง๐ช Kontich | 6 | 2016 |
| 39 | [Safe-Connect](https://www.tamtam.ai/c/safe-connect) (safe-connect.com)
Delivers IT architecture, cybersecurity, and managed services across Europe through proactive ICT strategy development, data monitoring, and hybrid cloud infrastructure management. | IT Services and IT Consulting | ๐ง๐ช Hasselt | 5 | |
| 40 | [wizQIT BV](https://www.tamtam.ai/c/wizqit-bv) (wizqit.com)
Specializing in highly secured networks, we have strategic partnerships with top technology companies like Fortinet, SentinelOne, Juniper, HP, and others | IT Services and IT Consulting | ๐ง๐ช Diepenbeek | 3 | 2015 |
| 41 | [BOSSIT - Ethical Hacking](https://www.tamtam.ai/c/bossit-ethical-hacking) (bossit.be)
Cybersecurity company specializing in ethical hacking and penetration testing of IT systems, networks, and web applications | IT Services and IT Consulting | ๐ง๐ช Bornem | 3 | 2013 |
| 42 | [Icteryus](https://www.tamtam.ai/c/icteryus) (icteryus.com)
Global enterprise protection from cyber security threats through reliable and transparent services available 24/7 | IT Services and IT Consulting | ๐ง๐ช Gentbrugge | 3 | 2021 |
| 43 | [Soteria - Cybersecurity](https://www.tamtam.ai/c/soteria-cybersecurity) (soteria.be)
A cybersecurity partner specializing in IT & OT, offering tailored solutions, services, and consultancy to protect businesses from cybercrime and keep operations secure | IT Services and IT Consulting | ๐ง๐ช Ghent | 3 | |
| 44 | [Staunch](https://www.tamtam.ai/c/staunch) (portfolio.staunch.be)
An IT company specializing in Enterprise Information Security solutions, offering services for cybersecurity awareness, risk assessment, compliance, and critical infrastructure security enhancement | Computer and Network Security | ๐ง๐ช Strombeek-Bever | 3 | 2021 |
| 45 | [CyberTalent](https://www.tamtam.ai/c/cybertalent)
CyberTalent provides tailored cybersecurity solutions and staffing to protect businesses against evolving threats, offering audits, consultancy, and phishing campaigns | Computer and Network Security | ๐ง๐ช Antwerp | 3 | 2023 |
## 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 12, 2026.
## More company lists in Flanders
- [The largest companies in Flanders](https://www.tamtam.ai/l/largest-companies-flanders) (4,222)
- [Multinational companies in Flanders](https://www.tamtam.ai/l/multinational-companies-flanders) (1,023)
- [Manufacturers in Flanders](https://www.tamtam.ai/l/manufacturers-flanders) (415)
- [Retail chains in Flanders](https://www.tamtam.ai/l/retail-chains-flanders) (370)
- [IT services companies in Flanders](https://www.tamtam.ai/l/it-services-companies-flanders) (367)
- [IT Services and IT Consulting companies in Flanders](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-flanders) (356)
- [Companies with in-house R&D in Flanders](https://www.tamtam.ai/l/r-and-d-companies-flanders) (352)
- [Transportation, Logistics, Supply Chain and Storage companies in Flanders](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-flanders) (313)
- [Family-owned companies in Flanders](https://www.tamtam.ai/l/family-owned-companies-flanders) (310)
- [Software Development companies in Flanders](https://www.tamtam.ai/l/software-development-companies-flanders) (287)
- [SaaS companies in Flanders](https://www.tamtam.ai/l/saas-companies-flanders) (265)
- [Professional services firms in Flanders](https://www.tamtam.ai/l/professional-services-firms-flanders) (263)
- [Distributors and wholesalers in Flanders](https://www.tamtam.ai/l/distributors-and-wholesalers-flanders) (246)
- [Hardware manufacturers in Flanders](https://www.tamtam.ai/l/hardware-companies-flanders) (213)
- [Truck Transportation companies in Flanders](https://www.tamtam.ai/l/truck-transportation-companies-flanders) (205)
- [Logistics companies in Flanders](https://www.tamtam.ai/l/logistics-companies-flanders) (202)
- [Critical infrastructure operators in Flanders](https://www.tamtam.ai/l/critical-infrastructure-operators-flanders) (183)
- [Retail companies in Flanders](https://www.tamtam.ai/l/retail-companies-flanders) (182)
- [Food and Beverage Manufacturing companies in Flanders](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-flanders) (175)
- [Consulting firms in Flanders](https://www.tamtam.ai/l/consulting-firms-flanders) (172)
- [E-commerce companies in Flanders](https://www.tamtam.ai/l/ecommerce-companies-flanders) (145)
- [Advertising Services companies in Flanders](https://www.tamtam.ai/l/advertising-services-companies-flanders) (137)
- [Food and beverage companies in Flanders](https://www.tamtam.ai/l/food-and-beverage-companies-flanders) (131)
- [Financial services firms in Flanders](https://www.tamtam.ai/l/financial-services-firms-flanders) (128)
## The same list elsewhere in Belgium
- [Cybersecurity companies in Belgium](https://www.tamtam.ai/l/cybersecurity-companies-belgium) (69)
## The same list elsewhere
- [Cybersecurity companies in the world](https://www.tamtam.ai/l/cybersecurity-companies-in-the-world) (3,776)
- [Cybersecurity companies in Europe](https://www.tamtam.ai/l/cybersecurity-companies-in-europe) (2,197)
---
Source: https://www.tamtam.ai/l/cybersecurity-companies-flanders