Let’s be honest, cybersecurity isn’t just an IT box to tick anymore, it’s one of those make-or-break things for any business trying to stay afloat. A single overlooked gap in your systems can snowball into headaches you definitely don’t want to deal with. That’s why vulnerability assessments have quietly become the unsung heroes of modern security.
Across Europe, you’ve got a mix of players tackling this problem from different angles. Some are boutique teams that live for penetration testing and thrive on spotting flaws others might miss. Others are bigger outfits bundling vulnerability scans into broader managed services, so you get the whole package. Different approaches, same mission: catch the weak spots early and deal with them before they catch you.
In this guide, we’ll walk through some of the standout companies in Europe offering these services, what sets them apart, and why so many businesses trust them to keep their defenses sharp.
1. A-Listware
At A-Listware, we work closely with European clients who need extra hands in software development and IT support. Most of the projects we take on involve adapting to different business cultures and technical setups, so we’re used to switching gears depending on what a client actually needs. Security has become part of that picture too, and vulnerability assessments naturally fit into the kind of work we do. It’s not just about coding or building systems, it’s about making sure those systems hold up under real-world pressure.
We don’t come in with a one-size-fits-all approach. Some of our work is long-term collaboration with teams that need steady support, while other times it’s stepping in on a specific project, like running checks on infrastructure or tightening up a client’s software security. Either way, the focus is always on keeping things practical, so businesses across Europe can move forward without worrying about hidden cracks in their setup.
Key Highlights:
- Experience with varied business cultures and technical setups
- Security and vulnerability checks included in project work
- Flexible support, from long-term collaboration to specific tasks
- Focused on practical, usable results
Services:
- Software development
- IT support for European clients
- Vulnerability assessments
- Infrastructure and system checks
- Long-term team extension
- Project-based collaboration
Contact Info:
- Website: a-listware.com
- Email: info@a-listware.com
- Facebook: www.facebook.com/alistware
- LinkedIn: www.linkedin.com/company/a-listware
- Address: St. Leonards-On-Sea, TN37 7TA, UK
- Phone Number: +44 (0)142 439 01 40
2. CyberLab
CyberLab is a UK-based company that puts its energy into keeping businesses aware of where their systems might be weak. They run vulnerability assessments that look beneath the surface, checking how secure networks, applications, and cloud setups really are. Their work is less about big promises and more about routine checks that give companies a clearer picture of their actual risks.
They also spend time on compliance and training, which means they don’t just hand over a list of issues and walk away. Instead, they aim to help teams understand what the results mean and what practical steps they can take next. It’s a straightforward approach that suits businesses that need ongoing support rather than a one-off report gathering dust.
Key Highlights:
- UK-based cybersecurity firm
- Focus on vulnerability assessments and risk identification
- Includes compliance support and training in their services
- Works with networks, apps, and cloud environments
- Keeps processes practical and easy to follow
Services:
- Vulnerability assessments
- Penetration testing
- Compliance checks
- Cybersecurity training and awareness
- Cloud and network security reviews
- Ongoing security monitoring and support
Contact Info:
- Website: cyberlab.co.uk
- Email: hello@cyberlab.co.uk
- Phone: 0333 050 8120
- Address: The Farmers Club 10 Northgate Street Bury Saint Edmunds IP33 1HQ
- LinkedIn: www.linkedin.com/company/cyberlabconsulting
3. CYFOR Secure
CYFOR Secure is a UK company that spends its time helping organizations figure out where their security is slipping. Their focus is on vulnerability assessments, penetration testing, and the kind of day-to-day monitoring that stops small issues from turning into bigger ones. They come across less like a vendor pushing tools and more like a partner running checks in the background so businesses know where they stand.
They also deal with compliance and incident response, which means they aren’t just about spotting problems but also helping teams stay aligned with standards and react properly if something does go wrong. The work they do isn’t flashy, but it fills the gaps that many companies don’t have time or people to handle in-house.
Key Highlights:
- UK-based cybersecurity provider
- Covers vulnerability assessments, testing, and monitoring
- Supports compliance needs and incident handling
- Works with both small teams and larger organizations
- Straightforward approach without unnecessary extras
Services
- Vulnerability assessments
- Penetration testing
- Security monitoring
- Incident response
- Compliance support
- Managed cybersecurity services
Contact Info:
- Website: cyforsecure.co.uk
- Email: contact@cyforsecure.co.uk
- Phone: 03301355756
- LinkedIn: www.linkedin.com/showcase/cyfor-secure-cyber-security
- Twitter: x.com/cyforsecure
4. NCC Group
NCC Group is a UK-based cybersecurity company that deals with the practical side of keeping systems and data safe. They spend a lot of time on security testing, running vulnerability assessments, and checking how well defenses hold up under pressure. Instead of only pointing out what’s broken, they tend to focus on giving companies a clear path to improve, which makes their work more useful in day-to-day operations.
They also cover areas like incident response, managed security, and compliance support. In other words, they’re not just about spotting weaknesses but also about sticking around to help businesses manage risks and stay aligned with security standards. It’s a broad setup, which suits organizations that don’t want to juggle different providers for different tasks.
Key Highlights:
- UK-based cybersecurity company
- Works on vulnerability assessments and penetration testing
- Provides incident response and compliance support
- Offers managed security services for ongoing coverage
- Has experience across different industries and system types
Services:
- Vulnerability assessments
- Penetration testing
- Incident response
- Managed security services
- Compliance and risk management
- Cloud and application security checks
Contact Info:
- Website: www.nccgroup.com
- Phone: +441612095200
- Address: XYZ Building 2 Hardman Boulevard Spinningfields Manchester M3 3AQ
- LinkedIn: www.linkedin.com/company/ncc-group
5. Lrqa
Lrqa is a UK-based security company that focuses on checking where systems are vulnerable and how they hold up against real-world threats. They put a lot of their work into penetration testing and vulnerability assessments, which basically means they try to find the cracks before someone else does. Their approach is more about giving businesses a clear idea of risks rather than drowning them in technical jargon.
Beyond testing, they also get involved with managed services, compliance, and incident response. That way, companies don’t just get told what’s wrong but also have support in fixing and monitoring things over time. It’s a practical setup that covers both the immediate checks and the longer-term side of security.
Key Highlights:
- UK-based cybersecurity firm
- Strong focus on penetration testing and vulnerability assessments
- Provides managed services and compliance help
- Supports incident response and ongoing monitoring
- Works across different industries and system types
Services:
- Vulnerability assessments
- Penetration testing
- Managed security services
- Compliance and risk management
- Incident response
- Cloud and network security reviews
Contact Info:
- Website: www.lrqa.com
- Phone: +441218174000
- Address: 1, Trinity Park, Bickenhill Lane, Birmingham B37 7ES
- LinkedIn: www.linkedin.com/company/lrqa
- Twitter: x.com/lrqa
6. Cronos Security
Cronos Security is a European cybersecurity company that focuses on finding and fixing weak spots before attackers do. They spend most of their time on vulnerability assessments, penetration testing, and related services that help organizations understand what’s really going on with their systems. Their style is practical: instead of throwing abstract numbers or buzzwords, they provide findings that teams can actually act on.
They also branch out into areas like training and security consultancy, which means they don’t just test and leave but stick around to explain what the results mean. This helps companies that may not have big internal security teams but still need to stay on top of threats. The work is steady, detailed, and aimed at making security something that can be handled without unnecessary complexity.
Key Highlights:
- European cybersecurity company
- Focus on vulnerability assessments and penetration testing
- Provides training and consultancy alongside testing
- Works with different industries and system types
- Keeps services straightforward and usable
Services:
- Vulnerability assessments
- Penetration testing
- Security consultancy
- Training and awareness programs
- Cloud and network security checks
- Ongoing advisory support
Contact Info:
- Website: cronossecurity.eu
- Phone: +32 (0)3 450 80 30
- Address: Veldkant 33a 2550 Kontich Belgium
- LinkedIn: www.linkedin.com/company/cronossecurity
7. SEG Services
SEG Services is a European company that works across cybersecurity, IT, and managed services. On the security side, they run vulnerability assessments and penetration testing, which helps organizations get a clear picture of where their systems might be exposed. They don’t just test and disappear though; part of their work is about sticking around to provide guidance and keep an eye on things over time.
They also cover broader IT support, which means they’re often involved in day-to-day operations as well as security. That mix makes them a bit different from firms that only do assessments. For some businesses, having one team that looks after both the technical setup and the security checks can be a lot easier than managing several different providers.
Key Highlights:
- European company offering both IT and security services
- Runs vulnerability assessments and penetration testing
- Provides managed services for ongoing support
- Works with organizations of different sizes
- Combines technical IT support with security checks
Services:
- Vulnerability assessments
- Penetration testing
- IT support and management
- Managed security services
- Network monitoring
- Security consultancy
Contact Info:
- Website: segservices.eu
- Email: training@seg.com.ua
- Phone: +380 (667) 23 9162
- LinkedIn: www.linkedin.com/company/security-expert-group
- Instagram: www.instagram.com/seg_cyber_security
- Facebook: www.facebook.com/segcomua
8. ITrust
ITrust is a French cybersecurity company that spends much of its time helping organizations understand where they’re vulnerable. They carry out vulnerability assessments and penetration testing to give businesses a clearer view of how secure their systems really are. The way they work is less about flashy presentations and more about making sure the results are practical and can be used right away.
They also run managed security services and provide consultancy, which means they’re not only pointing out problems but also helping to keep things under control on a regular basis. Their setup works for companies that don’t have large internal security teams and prefer ongoing support rather than one-off reports.
Key Highlights:
- French cybersecurity provider
- Focused on vulnerability assessments and penetration testing
- Provides managed services alongside consultancy
- Works with a range of industries and system setups
- Keeps results straightforward and actionable
Services:
- Vulnerability assessments
- Penetration testing
- Managed security services
- Security consultancy
- Risk management support
- Cloud and network security checks
Contact Info:
- Website: www.itrust.fr
- Email: contact@itrust.fr
- Phone: +33567346780
- Address: Franklin Tower, 100 101 Terrasse Boieldieu, 92800 Puteaux La Défense Paris
- LinkedIn: www.linkedin.com/company/itrustsa
- Twitter: x.com/itrust_cybersec
- Instagram: www.instagram.com/itrust.cybersecurity
9. Threat Labs
Threat Labs is a European security company that spends most of its time checking where systems are likely to break under pressure. They run vulnerability assessments and penetration tests, helping organizations see where things could go wrong before someone else finds the same weaknesses. The way they work is more practical than polished, giving teams information they can actually use instead of long reports that just gather dust.
They also cover broader security services like consultancy and monitoring. That means they’re not only pointing out issues but also helping companies deal with them over time. For smaller teams that don’t have much in-house security knowledge, having that extra backup can make a big difference.
Key Highlights:
- European cybersecurity company
- Focuses on penetration testing and vulnerability assessments
- Provides consultancy and monitoring as part of services
- Works with different industries and technical setups
- Keeps results straightforward and useful
Services
- Vulnerability assessments
- Penetration testing
- Security consultancy
- Monitoring and ongoing support
- Network and cloud security checks
- Risk management
Contact Info:
- Website: threatlabs.eu
- Email: info@threatlabs.eu
- Phone: +31884435000
- Address: Europalaan 93, 3526 KP Utrecht
- LinkedIn: www.linkedin.com/company/ThreatLabs
10. Adacom
Adacom is a European cybersecurity company that spends its time helping organizations figure out where they stand with their security. They carry out vulnerability assessments, penetration testing, and a mix of other checks that make it easier to see where systems might fall short. Their work is less about packaging things up in buzzwords and more about giving straightforward insights that teams can act on.
They also deal with compliance, managed security, and identity solutions, which means they’re not only testing but also helping companies keep security running smoothly over time. For businesses that don’t want to juggle different providers for different tasks, having one team cover these bases can simplify things quite a bit.
Key Highlights:
- European cybersecurity company
- Works on vulnerability assessments and penetration testing
- Provides managed security and compliance support
- Offers identity and risk management services
- Keeps results practical and easy to follow
Services:
- Vulnerability assessments
- Penetration testing
- Managed security services
- Compliance and risk management
- Identity and access solutions
- Security consultancy
Contact Info:
- Website: www.adacom.com
- Email: info@adacom.com
- Phone: +302105193700
- Address: 25 Kreontos 104 42 Athens
- LinkedIn: www.linkedin.com/company/adacom-cyber-security
- Twitter: x.com/AdacomCyber
- Facebook: www.facebook.com/adacomcyber
- Instagram: www.instagram.com/adacom_securitybuiltontrust
11. Truesec
Truesec is a European security company that spends much of its time digging into vulnerabilities and helping organizations prepare for real-world attacks. They’re known for running penetration tests and vulnerability assessments that show where systems might be weak. The focus is on practical outcomes rather than lengthy, hard-to-read reports, which makes it easier for teams to know what to fix first.
They also work heavily in incident response and managed detection, so they’re often called in when things have already gone wrong. Beyond that, they provide consultancy and training to help companies stay prepared in the long run. It’s a mix of prevention, quick reaction, and ongoing support, which suits businesses that don’t have big in-house security teams.
Key Highlights:
- European cybersecurity company
- Focuses on penetration testing and vulnerability assessments
- Strong role in incident response and recovery
- Provides managed detection and monitoring services
- Supports organizations with consultancy and training
Services:
- Vulnerability assessments
- Penetration testing
- Incident response
- Managed detection and response
- Security consultancy
- Training and awareness programs
Contact Info:
- Website: www.truesec.com
- Email: hello@truesec.com
- Phone: +468100010
- Address: Luntmakargatan 18 111 37 Stockholm
- LinkedIn: www.linkedin.com/company/truesec
- Twitter: x.com/Truesec
- Facebook: www.facebook.com/Truesec
12. DNV
DNV is a global company with roots in risk management, and cybersecurity is one of the areas they’ve built into their wider services. They run vulnerability assessments and security testing to help organizations understand where systems might not hold up. Because their background is broader than just IT, they often tie security into bigger risk and compliance frameworks, which can be useful for companies that have to balance multiple regulations at once.
Alongside testing, they also provide consultancy, training, and managed services. That means they’re not just handing over a report but staying involved to help businesses apply the results and keep security in line with industry standards. Their approach fits companies that want cybersecurity to be part of the bigger picture rather than a separate task.
Key Highlights:
- International company with a risk management background
- Provides vulnerability assessments and testing
- Connects cybersecurity with compliance and governance
- Offers training and consultancy services
- Works across multiple industries
Services:
- Vulnerability assessments
- Penetration testing
- Risk and compliance management
- Security consultancy
- Training and awareness programs
- Managed security services
Contact Info:
- Website: www.dnv.com
- Email: Ulrike.Haugen@dnv.com
- Phone: +4940361490
- Address: Brooktorkai 18 20457 Hamburg Germany
- LinkedIn: www.linkedin.com/showcase/dnvcyber
- Facebook: www.facebook.com/dnvofficial
13. Aptive
Aptive is a UK-based company that works across cybersecurity and IT support. On the security side, they handle vulnerability assessments, penetration testing, and monitoring so that businesses know where they stand with their systems. Their approach is more about giving teams practical steps to follow rather than drowning them in technical jargon.
They also offer managed IT services, so they often become the go-to team for both day-to-day tech problems and longer-term security planning. That mix can be handy for companies that don’t have the time or resources to manage separate providers. It keeps things straightforward, with one team looking after both the basics and the security essentials.
Key Highlights:
- UK-based IT and cybersecurity company
- Provides vulnerability assessments and penetration testing
- Offers managed IT support alongside security services
- Works with businesses of different sizes
- Focuses on practical and usable outcomes
Services:
- Vulnerability assessments
- Penetration testing
- Managed IT services
- Network monitoring
- Security consultancy
- Cloud and infrastructure support
Contact Info:
- Website: www.aptive.co.uk
- Email: hello@aptive.co.uk
- Phone: 03333440831
- Address: 86-90 Paul Street London EC2A 4NE
- LinkedIn: www.linkedin.com/company/aptive-consulting
- Twitter: x.com/AptiveSec
14. Allistic
Allistic is a French company that focuses on helping businesses keep their security in check through vulnerability assessments, penetration testing, and compliance work. They spend a lot of time digging into systems to spot weaknesses before they turn into problems, and their feedback is designed to be clear enough for teams to act on without needing a dictionary of security terms.
On top of testing, they also work with organizations on compliance and governance, making sure companies meet the standards they’re supposed to. That combination of technical checks and compliance support means they often end up being a longer-term partner rather than just a one-time tester.
Key Highlights:
- French cybersecurity company
- Works on vulnerability assessments and penetration testing
- Provides compliance and governance support
- Keeps reports clear and usable
- Works with businesses across different sectors
Services:
- Vulnerability assessments
- Penetration testing
- Compliance and governance support
- Risk management consultancy
- Security awareness and training
- Ongoing advisory services
Contact Info:
- Website: www.allistic.fr
- Phone: +33 3 74 09 61 00
- Address: 177 All. Clémentine Deman, 59000 Lille, France
- LinkedIn: www.linkedin.com/company/allistic
- Facebook: www.facebook.com/allistic.fr
- Instagram: www.instagram.com/allistic_fr
Conclusion
Europe has no shortage of companies that can step in and run vulnerability assessments, but they all bring something slightly different to the table. Some stick to tight, technical testing, while others fold security into wider IT or compliance services. The point isn’t about finding the flashiest name, it’s about choosing a partner that fits how your business actually works.
If you’re weighing your options, it makes sense to start small. A single assessment or short project can show you how a team operates and whether their style matches yours. From there, it’s easier to build a longer partnership if it feels like the right fit. In the end, getting your security gaps checked regularly is less about ticking a box and more about keeping everything else running smoothly.
