Security flaws in software aren’t just technical slip-ups anymore, they’re business risks. A single unchecked vulnerability can lead to data leaks, reputational damage, and costly downtime. That’s why more organizations across Europe are turning to specialized firms that focus on secure code reviews.
These companies don’t just scan through code mechanically. They combine automated tools with human expertise, spotting the kinds of subtle weaknesses that attackers look for. Whether it’s a startup building its first product or a large enterprise with a complex stack, the goal is the same: catch issues early, reduce risks, and keep systems resilient against evolving threats.
1. A-Listware
At A-Listware, we work with European clients who need support across the software development cycle. Our role is often about strengthening in-house teams with additional skills, whether that means secure code review, application services, or infrastructure support. By combining consulting with delivery, we help companies keep their systems reliable and secure without overcomplicating the process.
We also provide flexible engagement models that let clients choose the level of involvement they need. Some projects require a dedicated team to handle large-scale programs, while others only need a short-term group of engineers to focus on specific issues. No matter the setup, the idea is the same: integrate smoothly with existing teams, work transparently, and make sure the technology holds up in real-world use.
Key Highlights:
- Flexible engagement models including dedicated teams, agile delivery, and KPI-driven programs
- Integration with existing client workflows for smooth collaboration
- Work with enterprises, SMBs, and startups across Europe
Services:
- Secure code review and cybersecurity services
- Software development and outsourcing
- Team augmentation and consulting
- Web and mobile app development
- Testing and QA
- Cloud application and enterprise software development
- Data analytics and AI solutions
- Infrastructure and IT support services
Contact Information:
- Website: a-listware.com
- Phone: +44 (0)142 439 01 40
- Email: info@a-listware.com
- Address: St. Leonards-On-Sea, TN37 7TA, UK
- LinkedIn: www.linkedin.com/company/a-listware
- Facebook: www.facebook.com/alistware
2. Datami
Datami is a European cybersecurity company that focuses on protecting digital infrastructures through a mix of manual expertise and technical testing. Their work covers industries as varied as finance, healthcare, government, and technology. The team emphasizes identifying vulnerabilities early, with secure code review being one of the ways they help organizations reduce risks in software development.
They approach security by combining penetration testing, monitoring, and reverse engineering with broader services such as recovery and protection strategies. Instead of relying only on automated scans, they put weight on manual checks and tailored reporting so clients can understand the impact of vulnerabilities in practical terms. This balance between technical accuracy and clear communication makes their role in secure code review straightforward and usable across different environments.
Key Highlights:
- Experience with clients across finance, healthcare, government, and technology sectors
- Manual and automated methods combined for detailed results
- Emphasis on secure code review and early detection of vulnerabilities
- Tailored reports aligned with client needs
Services:
- Security code review
- Penetration testing of web, mobile, API, and networks
- Smart contract audits
- Cloud infrastructure security
- Reverse engineering and malware analysis
- DDoS protection and monitoring
- Incident treatment and recovery
Contact Information:
- Website: datami.ee
- E-mail: office@datami.ee
- Facebook: www.facebook.com/datami.ua
- LinkedIn: www.linkedin.com/company/datami-cybersecurity
- Address: Vesivarava St. 50-201, Kesklinna District, Tallinn, Harju County 10152, Estonia
- Phone: +3726991424
3. Evolution Security GmbH
Evolution Security GmbH operates from Germany and provides IT security services to clients across Europe and beyond. Their work spans penetration testing, infrastructure security, and 24/7 monitoring through a Cyber Security Operations Center. The company has a long-standing presence in the security field and partners with both private and public organizations, including industries such as banking, telecommunications, and government.
Their services are structured around both prevention and response. They handle secure code review, penetration tests, and vulnerability assessments, while also maintaining the ability to respond to emergencies such as ransomware or targeted attacks. With a dedicated research unit, they also contribute to identifying and disclosing software vulnerabilities, which supports their practical consulting and testing activities.
Key Highlights:
- Based in Germany with services extending across Europe and internationally
- Continuous availability through a Cyber Security Operations Center
- Research activity through a dedicated vulnerability laboratory
- Experience with both public institutions and private corporations
Services:
- Secure code review and vulnerability assessment
- Manual and automated penetration testing (web, mobile, infrastructure)
- Security operations and incident response
- Ransomware and malware attack support
- Cloud and network security testing
- Workshops, talks, and training sessions
Contact Information:
- Website: www.evolution-sec.com
- E-mail: info@esec-service.de
- Address: Dresdener Straße 1,34125 Kassel,Germany, Hessen
- Phone: +49 – (0)561 – 40085396
4. Sunbytes
Sunbytes is a Netherlands-based company that offers a mix of software development and cybersecurity services for European and international clients. Their security practice includes penetration testing and secure code review, aiming to detect weaknesses in applications and ensure codebases are both secure and maintainable. They work across industries like fintech, healthcare, and technology, often combining technical assessments with consulting support for compliance and risk management.
Their code review service looks beyond surface checks, using both automated scanning and manual analysis to identify vulnerabilities, inefficiencies, and potential risks in early stages of development. Alongside this, their penetration testing follows standardized methodologies and integrates clear reporting to guide remediation. By combining development expertise with security services, Sunbytes provides organizations with a straightforward way to strengthen their digital infrastructure.
Key Highlights:
- European company with experience in software and cybersecurity projects
- Focus on penetration testing and secure code review
- Uses a mix of manual and automated testing methods
- Support for compliance with frameworks like GDPR and NIS2
Services:
- Secure code review
- Penetration testing of applications and infrastructure
- Cloud security assessment
- Software development and consulting
- Dedicated developer teams and staffing solutions
- HR services including recruitment and payroll support
Contact Information:
- Website: sunbytes.io
- E-mail: info@sunbytes.io
- Facebook: www.facebook.com/sunbytes
- Twitter: x.com/sunbytes
- LinkedIn: www.linkedin.com/company/sunbytes
- Address: Stadsplateau 7, 3521 AZ Utrecht, Netherlands
- Phone: +31 (0) 30 227 00 97
5. SecureTeam
SecureTeam is a UK-based cybersecurity consultancy with a long history of providing penetration testing and security assessments for organizations of different sizes. Their expertise covers both application and infrastructure security, with services ranging from network testing to compliance support. They work with clients in the public and private sector, including healthcare, finance, and technology.
They also carry out secure code reviews on a wide range of programming languages and environments. The combination of CREST-accredited testers and a background in software development allows them to identify security flaws and guide remediation in a practical way. Alongside testing, they offer compliance consulting, training, and risk management support, giving organizations multiple options to improve their security posture.
Key Highlights:
- UK-based consultancy with over two decades of security experience
- CREST-accredited penetration testing team
- Broad client base across public and private sectors
- Strong focus on application and code-level security
Services:
- Secure code review
- Web, mobile, and API penetration testing
- Network and infrastructure security assessments
- Cloud and configuration reviews (AWS, Azure, Microsoft 365)
- Compliance consulting (ISO 27001, SOC2, GDPR, Cyber Essentials)
- Risk management and security awareness training
- Bespoke security testing including IoT and hardware
Contact Information:
- Website: secureteam.co.uk
- Facebook: www.facebook.com/SecureTeamLtd
- Twitter: x.com/secureteamuk
- LinkedIn: www.linkedin.com/company/secureteam-ltd
- Address: Kemp House, 152 City Road, London, EC1V 2NX, UK
- Phone: +44 (0) 203 88 020 88
6. Comsec
Comsec provides secure code review services aimed at helping organizations uncover weaknesses before software is released into production. Their approach blends automated tools with manual analysis, allowing their team to identify issues that could slip past standard penetration tests. By addressing vulnerabilities early, they support development teams in reducing potential risks while also improving the overall stability of applications.
Their specialists work across multiple programming languages and adjust the scope of each review to the specific needs of the project. Alongside code review, they also contribute broader expertise in cybersecurity, offering assessments and compliance support. With decades of experience, Comsec positions secure coding practices as part of a wider effort to strengthen resilience across different industries.
Key Highlights:
- Experience across a wide range of programming language
- Hybrid review model combining automated and manual methods
- Early-stage code review integrated into development cycles
- Global presence with long-standing expertise in cybersecurity
Services:
- Secure code review
- Penetration testing and security assessments
- Governance, risk, and compliance support
- Advisory and managed security services
- Education and training on security awareness
Contact Information:
- Website: comsecglobal.com
- E-mail: info@comsecglobal.com
- Twitter: x.com/ComsecGlobal
- Facebook: www.facebook.com/comsecgroup
- LinkedIn: www.linkedin.com/company/comsecglobal
- Address: Hogehilweg 4 1101 CC Amsterdam The Netherlands
- Phone: +31 (0) 202371950
7. Securitum
Securitum is a European cybersecurity company that specializes in penetration testing and code security assessments. Their work ranges from auditing web and mobile applications to evaluating infrastructure, cloud environments, and organizational readiness through red teaming and SSDLC implementation. By combining automated tools with manual testing, they aim to uncover weaknesses that could otherwise be overlooked.
Their secure code review service is part of a broader approach that includes recurring network scans, compliance-focused audits, and support for integrating security into development processes. This gives organizations the ability to spot vulnerabilities early, improve resilience against threats, and align their systems with regulatory requirements such as DORA.
Key Highlights:
- European company with expertise in penetration testing and security audits
- Combines manual testing and automated tools
- Focus on secure code review within SSDLC practices
- Support for compliance with European regulations including DORA
Services:
- Secure code review
- Web, mobile, and infrastructure penetration testing
- Cloud security audits and risk assessments
- Red teaming and simulated attack scenarios
- SSDLC consulting and implementation
- Periodic network vulnerability scanning
Contact Information:
- Website: www.securitum.com
- E-mail: securitum@securitum.com
- Facebook: www.facebook.com/SecuritumCom
- Twitter: x.com/securitum_com
- LinkedIn: www.linkedin.com/company/securitum
- Address: ul. Siostry Zygmunty Zimmer 5 30-441 Kraków, Poland
- Phone: +48 12 352 33 82
8. Risk Associates
Risk Associates provides a dedicated source code review service as part of its wider security testing and compliance offering. Their approach involves a line-by-line review of application code to detect vulnerabilities, assess compliance with standards, and improve overall software quality. By working closely with development teams, they help integrate fixes and maintain security beyond the initial review.
Their services also cover compliance assurance for frameworks such as OWASP, GDPR, PCI-DSS, and HIPAA. Beyond detecting risks like SQL injection or cross-site scripting, they provide structured reports and remediation plans that bridge the gap between security assessments and development workflows. This makes them a practical partner for organizations needing both technical reviews and compliance readiness.
Key Highlights:
- Specialized in detailed source code review
- Emphasis on compliance with international security standards
- Collaborative process with development teams for remediation
- Focus on improving both security and code quality
Services:
- Secure code review and vulnerability analysis
- Compliance assessments (GDPR, PCI-DSS, HIPAA, OWASP Top 10)
- Security testing and penetration assessments
- Governance, risk, and compliance consulting
- Ongoing monitoring and support for secure development
Contact Information:
- Website: riskassociates.com
- E-mail: info@riskassociates.com
- Facebook: www.facebook.com/RiskAssociatesOfficial
- Twitter: x.com/riskassociates
- LinkedIn: www.linkedin.com/company/riskassociates
- Instagram: www.instagram.com/riskassociates
- Address: 178 Merton High Street London SW19 1AY, UK
- Phone: +44 203 404 2858
9. EXEEC
EXEEC is one of those cybersecurity firms that leans heavily into offensive security not just reacting to threats but actively hunting them down. They work with all kinds of organizations, from large enterprises to fast-moving tech teams, helping them shore up their defenses through pen testing, secure code reviews, and threat simulations that mimic real-world attacks. What makes them stand out is how they bake security right into modern development setups like CI/CD and DevSecOps.
Their approach to code review isn’t just about scanning for bugs. It’s part of a much bigger picture that includes compliance guidance, vulnerability management, and ongoing monitoring. They bring together hands-on testing with regulatory know-how, helping companies stay ahead of the curve without drowning in paperwork. With a presence across Europe and clients beyond, EXEEC is the kind of partner you call when you want your security to be sharp, flexible, and constantly evolving.
Key Highlights:
- International presence with a European base and global clients
- Strong focus on offensive testing and threat simulation
- Integration of security into DevSecOps and CI/CD pipelines
- Compliance expertise covering NIS2, PCI DSS, GDPR, and DORA
Services:
- Secure code review
- Web, mobile, and network penetration testing
- Vulnerability assessments and cyber threat simulations
- Cloud and architecture security reviews
- Managed cybersecurity services including SOC and vCISO
- Compliance and risk management consulting
- Incident response, forensics, and continuous security validation
Contact Information:
- Website: exeec.com
- E-mail: support@exeec.com
10. TeamSecure
TeamSecure is a Germany-based security firm that takes code seriously right down to the last line. Their team blends manual and automated review methods to dig into source code, looking for the stuff that could cause real headaches if left unchecked. They don’t just flag issues and walk away, either. They work with dev teams to explain the risks in plain language and suggest fixes that actually make sense, like using input validation or memory-safe coding patterns.
But they’re not just about code. TeamSecure also handles pen testing, compliance checks, and social engineering assessments. They’re known for being responsive whether you need a remote code review or boots on the ground fast. Their goal is pretty simple: catch security flaws early and help companies build safer software from the start, not after something breaks.
Key Highlights:
- Germany-based cybersecurity company with European reach
- Special focus on secure code review and penetration testing
- 24/7 availability and quick mobilization of experts
- Collaborative approach with development teams to apply secure coding practices
Services:
- Secure code review
- Web, mobile, and infrastructure penetration testing
- Social engineering and responsible disclosure programs
- GDPR compliance and advisory services
- Managed security services and consultancy
- Security training and awareness programs
Contact Information:
- Website: teamsecure.de
- Email: e.support@cybrient.com
- Facebook: www.facebook.com/teamsecure.io
- Twitter: x.com/teamsecureio
- LinkedIn: www.linkedin.com/company/team-secure
- Instagram: www.instagram.com/teamsecure.io
- Address: Bdul. Iuliu Maniu nr. 6L, Campus 6.1, Etaj 2, Birou 217, ResCowork05, Bucharest, Romania
- Phone: 41 22 539 18 45
11. TopCertifier (Netherlands)
TopCertifier is better known for its global consulting work, but in the Netherlands, they’ve carved out a solid niche in cybersecurity especially when it comes to code review. Their team jumps in early during development, scanning for insecure code before it ever hits production. They combine automated scans with expert eyes to catch things machines might miss.
What sets them apart is how tightly their code review work connects to compliance. Whether you’re aiming for ISO certification or need to tick boxes for GDPR, HIPAA, or PCI-DSS, they’re already familiar with the territory. For companies building something new or trying to stay audit-ready, TopCertifier is a practical choice that blends technical testing with real-world certification needs.
Key Highlights:
- Active in the Netherlands with global consulting coverage
- Secure code review as part of broader certification and security services
- Early detection of insecure code during development
- Emphasis on regulatory and compliance alignment
Services:
- Secure code review
- Server, network, and infrastructure penetration testing
- Cloud and application security testing
- ISO and regulatory compliance consulting
- Cyber forensic services and SOC monitoring
- Certification and audit readiness support
Contact Information:
- Website: www.iso-certification-netherlands.com
- E-mail: info@topcertifier.com
- Facebook: www.facebook.com/TopCertifier987
- Twitter: x.com/TOPCertifier
- LinkedIn: www.linkedin.com/company/topcertifier
- Instagram: www.instagram.com/topcertifier
- Address: Statensingel 34C3039 LN Rotterdam Netherlands
- Phone: +44 7496 840758
12. Aikido
Aikido isn’t your typical security vendor. It’s a platform built for developers who want to catch issues early without bouncing between a dozen tools. They combine secure code review, vulnerability management, and cloud security under one roof so your dev and security teams can actually see what’s going on across the entire app lifecycle.
Their code review tools tap into static analysis, dependency scanning, and AI to spot bugs and risky code in real time. Everything connects directly to your CI/CD pipeline or IDE, so feedback comes while you’re still working on the code, not three weeks later. And they don’t stop at code. Aikido also helps with container checks, runtime protection, cloud posture reviews, and more. It’s a full-stack approach that makes security feel like part of the build process, not an afterthought.
Key Highlights:
- European platform combining code, cloud, and runtime security
- Secure code review integrated with CI/CD and IDE workflows
- AI-powered analysis and automated fixes
- Broad coverage across applications, containers, and cloud services
Services:
- Secure code review with static and AI-assisted analysis
- Dependency and license risk scanning (SCA, SBOMs)
- Infrastructure-as-code and cloud security assessments
- Dynamic and API security testing
- Malware and supply chain attack prevention
- Runtime protection with in-app firewall
- Vulnerability management and compliance automation
Contact Information:
- Website: www.aikido.dev
- E-mail: hello@aikido.dev
- Twitter: x.com/AikidoSecurity
- LinkedIn: www.linkedin.com/company/aikido-security
- Address: Keizer Karelstraat 15, 9000, Ghent, Belgium
13. DataArt
DataArt takes secure code review seriously but they don’t treat it like a one-size-fits-all scan-and-report deal. They mix automated tools with real human review, which helps them spot the kinds of issues that static analyzers usually miss. Their whole setup is designed to fit smoothly into a team’s development process, so problems are caught early, not after deployment when fixes are more painful (and expensive). Everything they do lines up with OWASP and other well-known security standards, so you’re not guessing about how risks are defined or handled.
What’s nice is that they don’t just drop in, run a report, and leave. In a lot of cases, DataArt’s security experts actually embed with client dev teams. That means code is reviewed continuously not just as a one-off check. They look at everything from high-level design decisions to small implementation details. It’s about improving code quality while staying compliant with all the usual security regulations.
Key Highlights:
- Combines automated scanning with manual code review
- Reviews based on OWASP and security verification standards
- Option for independent audits or integration with client teams
- Focus on early vulnerability detection in the SDLC
Services:
- Secure code review
- Penetration testing and red teaming
- Cloud security assessments
- Compliance management (ISO 27001, PCI DSS, GDPR)
- Social engineering tests and awareness training
- Managed security and consulting
Contact Information:
- Website: www.dataart.com
- E-mail: sales@dataart.com
- Facebook: www.facebook.com/dataart
- Twitter: x.com/DataArt
- LinkedIn: www.linkedin.com/company/dataart
- Address: 55 King William Street, 3rd floor, London, EC4R 9AD, UK
- Phone: +44 (0) 20 7099 9464
14. wizlynx group
wizlynx group comes at secure code review from the offensive side of security meaning they’re looking for what a real attacker might try to exploit. Their team works across different programming languages and tech stacks, using a mix of scanners and hands-on analysis to dig into the code. They pay close attention to things like broken auth, injection risks, and where sensitive data could be slipping through the cracks. At the end, you don’t just get a long list of issues you get a report that actually makes sense, with fixes ordered by risk.
Code review isn’t all they do. It’s part of a bigger picture that includes pen testing, red and purple team exercises, and even ongoing detection and response. Their consultants are certified and come with both offensive and defensive experience, so the feedback isn’t just “what’s wrong” it’s also how to fix it in a way that fits your setup.
Key Highlights:
- Hybrid approach using automated and manual testing
- Coverage across OWASP Top 10 and CWE/SANS Top 25 vulnerabilities
- Certified penetration testers and security consultants
- Detailed reporting with remediation recommendations
Services:
- Secure code review
- Penetration testing for web, mobile, and infrastructure
- Red and purple team exercises
- Vulnerability assessments
- Governance, risk, and compliance services (NIS2, PCI DSS, GDPR)
- Managed detection and response (MDR)
Contact Information:
- Website: www.wizlynxgroup.com
- E-mail: privacy@wizlynxgroup.com
- Facebook: www.facebook.com/wizlynxgroup
- Twitter: x.com/wizlynxgroup
- LinkedIn: www.linkedin.com/company/wizlynx-group
- Address: Hauptstrasse 11 CH-4102 Binningen Switzerland
15. SRAA (ITSec Security Consulting Limited)
SRAA, run by ITSec Security Consulting, offers secure code review as part of a broader range of security services. Their approach? Pretty balanced. They combine automated scans with real human inspection the goal isn’t just to catch one-off bugs, but to notice patterns in the code that could lead to bigger security issues down the line. They look at common trouble spots like input handling, broken auth, and data exposure.
Secure code review here isn’t treated as an isolated activity. It’s woven into their larger security assessments things like pen testing, audits, vulnerability scans, and even training. They work with clients in Europe, the UK, and Asia, and can handle both technical deep dives and higher-level risk consulting. The end result is a more complete picture of where your software might be at risk not just in the code, but in how it fits into your wider infrastructure.
Key Highlights:
- Secure code review combined with penetration testing and audits
- Mix of manual and automated review for broader coverage
- Focus on recurring coding issues and security patterns
- Active in Europe, UK, and Asia
Services:
- Secure code review and source code scans
- Web, mobile, and API penetration testing
- Vulnerability scanning for internal and external networks
- ISO 27001, PCI DSS, and GDPR compliance audits
- Risk assessment and IT security consulting
- Security awareness training and incident response planning
Contact Information:
- Website: sraa.com.hk
- E-mail: SalesExecutive@ITSec.vip
- Facebook: www.facebook.com/people/ITSec-Security-Consulting
- Address: 1 Lyric Square, London W6 0NB
- Phone: +44 7418 361871
Conclusion
If there’s one thing that’s clear from looking at these firms, it’s that there’s no single way to approach secure code review. Some teams go deep on manual inspection, others balance it with automation, and a few offer it as part of a bigger security program. But the one thing they all agree on? It’s way easier and cheaper to find vulnerabilities early than to deal with the aftermath of a breach.
For companies building anything more complex than a landing page, code review isn’t just a checkbox. It’s a habit. Whether you’re working with a boutique team or a global consultancy, what matters most is finding a partner who understands your stack, your workflow, and your real-world risks. Because at the end of the day, great code isn’t just functional it’s resilient.
