Cybersecurity isn’t a one-off task anymore – it runs through everything. From vendor access to app logic, from infrastructure to endpoints, the whole stack now carries risk. And as systems grow more complex, reacting after the fact just isn’t good enough. Detect early, respond fast, and avoid noise – that’s the new baseline.
Across Europe, a growing number of companies are skipping the checkbox audits and looking for support that actually plugs into their day-to-day. Not theory – just focused, usable help that fits existing systems and keeps work moving. What follows is a set of firms that specialize in doing just that. These aren’t static assessments or generic roadmaps. Each one brings experience from live environments, tight timelines, and real-world compliance work.
1. A-listware
A-listware provides cybersecurity consulting services across Europe, supporting organizations that need clear, structured approaches to risk management, system protection, and compliance. Our work spans infrastructure, cloud platforms, and embedded systems. Whether it’s integrating secure development practices or reviewing access controls, we focus on helping teams build safer digital environments without adding unnecessary complexity.
Our cybersecurity expertise fits into a broader service portfolio that includes software development, infrastructure support, and data analytics. That lets us approach security not as a one-off task, but as part of a system’s long-term health. Projects vary depending on context, but the goal stays the same: make security manageable, visible, and aligned with how people already work.
Key Highlights:
- Cybersecurity consulting across Europe
- Integrated with infrastructure, development, and analytics
- Focus on practical controls and secure workflows
- Experience with finance, telecom, and health systems
Services:
- Cybersecurity consulting and audit
- Secure software development practices
- Threat modeling and risk assessments
- Infrastructure and cloud security reviews
- Identity, access, and permissions control
Contact Information:
- Website: a-listware.com
- E-mail: 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: +44 (0)142 439 01 40
2. Sigma Software
Sigma Software offers cybersecurity consulting across Europe, usually in tandem with product development or system rollout. A lot of the work gets embedded into engineering workflows – secure SDLC, compliance for ISO or SOC 2, audit prep, and CI/CD pipeline hardening.
Support often starts with a security audit, but it doesn’t stop there. Teams get help integrating secure design into delivery, aligning architecture with policy, or prepping for regulatory reviews. What sets it apart is how naturally this fits into software cycles – not as an external blocker, but as part of how products move from build to deploy.
Key Highlights:
- Cybersecurity consulting across European markets
- Strong compliance focus (ISO, SOC 2, NIS2)
- Support for secure SDLC and DevSecOps
- Combines audits with hands-on development support
Services:
- Cybersecurity audits and posture assessments
- Risk-based strategy development
- Application security reviews and frameworks
- ISMS implementation and optimization
Contact Information:
- Website: sigma.software
- E-mail: info@sigma.software
- Facebook: www.facebook.com/SIGMASOFTWAREGROUP
- Twitter: x.com/sigmaswgroup
- LinkedIn: www.linkedin.com/company/sigma-software-group
- Instagram: www.instagram.com/sigma_software
- Address: München Atlas, Rosenheimer Str. 143C, 81671 München, Germany
- Phone: +4915236120277
3. Intellias
Intellias brings cybersecurity consulting to European organizations dealing with both IT and OT – from cloud-native environments to industrial systems. A lot of the work revolves around secure architecture, offensive security testing, and audit prep using frameworks like OWASP and MITRE ATT&CK.
Consultants step in to help with posture reviews, SSDLC implementation, and regulatory alignment. The process is shaped around how each team operates – not just policy docs, but practical assessments and ongoing risk adjustments. It’s especially useful for businesses navigating complex infrastructure or multiple compliance zones.
Key Highlights:
- Cybersecurity consulting across Europe
- Focus on both IT and operational systems
- Pen testing and red teaming aligned with top frameworks
- SSDLC guidance for DevOps and MLOps environments
Services:
- Cybersecurity audits and posture reviews
- Offensive security (penetration testing, red teaming)
- Cloud security and SSDLC for DevOps and MLOps
- Governance, risk, and compliance services
Contact Information:
- Website: intellias.com
- E-mail: security@intellias.com
- Facebook: www.facebook.com/Intellias.GlobalPage
- LinkedIn: www.linkedin.com/company/intellias
- Instagram: www.instagram.com/intellias_global
- Address: Wilhelm-Wagenfeld-Str. 28, 80807, 4th floor, Munich, Germany
- Phone: +49 8001800992
4. Accenture
Accenture works on cybersecurity projects across Europe, mostly in complex enterprise environments where risk, regulation, and legacy systems all converge. The role often involves rethinking how security is approached – building strategy from the ground up or tightening things that have become too brittle over time.
Much of the work unfolds as part of broader change programs. Security doesn’t get bolted on afterward – it’s part of how platforms are modernized and future-proofed. Typical focus areas include cloud security during migrations, cyber-physical system resilience, and planning ahead for issues like quantum encryption.
Key Highlights:
- Cybersecurity support across European industries
- Strategy-first approach tied to actual business priorities
- Focus on system protection, regulatory compliance, and response readiness
- Fit for large-scale, high-risk infrastructure setups
Services:
- Cyber strategy and risk planning
- Resilience and incident response setup
- Cyber-physical and OT infrastructure consulting
- Zero trust architecture design
Contact Information:
- Website: www.accenture.com
- Address: Börsegebäude, Schottenring 16, Vienna, Austria, 1010
- Phone: +431205020
5. Deverg
Deverg helps European businesses strengthen operational security, stay aligned with evolving frameworks like NIS2, and manage practical risk. Support often starts at the technical layer – testing environments, running audits – and builds up into full compliance mapping and policy work.
Most of the team comes with experience in ISO 27001, GDPR, and other regulatory frameworks. Projects tend to mix strategic planning with technical execution – SOC setup, vulnerability scans, DevOps alignment. Not just advice, but hands-on help.
Key Highlights:
- Cybersecurity consulting available across Europe
- Strong background in NIS2 and GDPR compliance
- ISO-certified expertise across security frameworks
Services:
- Vulnerability and penetration testing
- Managed SOC operations and monitoring
- DevOps and OT security integration
- Risk assessment and threat modeling
Contact Information:
- Website: www.deverg.global
- E-mail: info@deverg.global
- LinkedIn: www.linkedin.com/company/deverg
- Phone: +44 (0) 203 883 1213
6. CWSI
CWSI focuses on cybersecurity for teams working inside Microsoft ecosystems, mobile-first operations, or hybrid cloud setups. The work usually centers on keeping collaboration usable while tightening up security on devices, apps, and networks in the background.
Consulting typically includes architecture reviews, endpoint security design, and governance support. Engagements are flexible – from hardening mobile fleets to prepping apps for rollout or sorting out GRC challenges tied to multi-cloud environments.
Key Highlights:
- Cybersecurity projects delivered across Europe
- Specialized in mobile, cloud, and Microsoft-based environments
- Governance and compliance support included by design
Services:
- Strategy and technical security advisory
- Mobile and endpoint protection
- Cloud security architecture
- Governance, risk, and compliance (GRC)
Contact Information:
- Website: cwsisecurity.com
- E-mail: info@cwsi.ie
- Twitter: x.com/CWSI_IE
- LinkedIn: www.linkedin.com/company/cwsi
- Address: Unit 211, Q House, 76 Furze Road, Sandyford Industrial Estate, Sandyford, Dublin, D18 F4E0
- Phone: +353 1 293 2500
7. Protiviti
Protiviti supports cybersecurity efforts across Europe – often stepping in to help shape overall strategy, tighten cloud security, or design stronger access controls. The work usually starts with a risk scan across infrastructure, applications, and user permissions. From there, consulting can go in several directions – program design, digital identity, detection setup, or cloud protection.
Some companies bring in Protiviti for a quick advisory run; others stick around for longer engagements with managed services. Focus tends to land on areas like IAM, resilience planning, and compliance mapping – especially in sectors handling sensitive data flows.
Key Highlights:
- Cybersecurity consulting active across European markets
- Support for strategy, cloud, identity, and program design
- Services built around risk quantification and structured delivery
- Flexible format – one-off consulting or managed services
Services:
- Cloud security risk assessments
- Data protection and privacy alignment
- Penetration testing and vulnerability discovery
- Identity and access management (IAM) consulting
- Security governance and stakeholder reporting
- Cyber risk modeling and program strategy
Contact Information:
- Website: www.protiviti.com
- Twitter: x.com/protiviti
- LinkedIn: www.linkedin.com/company/protiviti
- Instagram: www.instagram.com/protiviti
- Address: Ring Tower, blv. Okolovrasten pat 251Е, fl.14, Sofia, Bulgaria
- Phone: +359 894 313999
8. Wavestone
Wavestone helps organizations across Europe get control over cybersecurity – not just on paper, but in day-to-day operations. Consulting usually focuses on aligning security with business priorities, building governance that actually works, and making sure teams can meet compliance demands without stalling progress.
Most of the work happens alongside CISOs, privacy officers, and resilience leaders. Secure development, digital identity, and cloud security come up often, especially in environments that are shifting rapidly. The firm avoids vendor influence and works toward long-term structures, not isolated fixes.
Key Highlights:
- Cybersecurity support for public and private European sectors
- Emphasis on governance models that hold up over time
- Focus areas include secure software and privacy by design
- Strong alignment between security and transformation goals
Services:
- Program design and cybersecurity strategy
- Secure software development (DevSecOps)
- Data protection and SAP security
- Cloud and infrastructure risk management
- Digital identity and access governance
Contact Information:
- Website: www.wavestone.com
- LinkedIn: www.linkedin.com/company/wavestone
- Instagram: www.instagram.com/wavestone_consulting
- Address: Josefstädterstraße 43-45, 1080 Vienna
- Phone: +43 720 3712 7613
9. ENCS
ENCS focuses on cybersecurity for critical infrastructure – mainly in energy and utilities. Most projects involve working with grid operators and similar stakeholders to improve zoning, evaluate suppliers, or align with strict regulatory rules.
Teams bring field-tested experience and share lessons across projects without losing focus on what each engagement actually needs. Both ENCS members and outside organizations can get support, with priority given to environments where reliability matters most.
Key Highlights:
- Cybersecurity support delivered across Europe
- Deep specialization in energy and infrastructure sectors
- Long-standing collaboration with grid operators
- Practical focus – zoning, supplier review, and risk control
Services:
- Risk assessments and ISMS implementation
- Supplier evaluation and procurement support
- Custom security zoning frameworks
- Advisory for regulatory alignment
- Support for non-member consulting on select projects
Contact Information:
- Website: encs.eu
- E-mail: info@encs.eu
- Address: Regulusweg 5, 2516 AC The Hague, The Netherlands
- Phone: +31 88 2052 678
10. Tech Defense Europe
Tech Defense Europe handles cybersecurity projects across Spain and other parts of Europe, with a focus on technical groundwork – things like penetration testing, system hardening, and practical training for internal teams. Most of the work revolves around making infrastructure more resilient and helping teams stay ahead of evolving risks.
Support usually starts with a clear risk evaluation, followed by help with cloud setup, application protection, or process refinement. It’s not just about running tests – there’s also attention to awareness training and long-term maintainability.
Key Highlights:
- Cybersecurity consulting active across Spain and European markets
- Focused on infrastructure, application, and cloud security
- Employee training included as part of many projects
Services:
- Security assessments and risk evaluation
- Penetration testing and technical defense setup
- Cloud and system hardening
- Awareness training for employees
- Process and infrastructure security management
Contact Information:
- Website: techdefense.eu
- E-mail: info@techdefense.eu
- Twitter: x.com/techdefense_eu
- LinkedIn: www.linkedin.com/company/techdefense-eu
- Address: Passeig de Gràcia 21, Barcelona 08007, España.
- Phone: +34 644097828
11. infodas
Infodas brings more than five decades of cybersecurity experience into European projects – mostly in defense, public administration, and infrastructure. The work often starts with a realistic risk scan, followed by architecture planning or support with upcoming audits.
Certified by BSI, the team is used to working under high regulatory pressure, but without defaulting to cookie-cutter templates. Every setup gets its own treatment – shaped by internal capacity, risk exposure, and current compliance needs. Common frameworks include NIS2, DORA, and ISO standards.
Key Highlights:
- Cybersecurity consulting across Europe
- Long-standing experience in defense and public sectors
- Certified by BSI as an independent security provider
- Tailored planning around risk, architecture, and audits
Services:
- ISMS implementation and advisory
- Risk analysis and mitigation planning
- Security architecture and concept design
- External DPO and ISO officers
- Cloud security consulting and reviews
- Business continuity management planning
Contact Information:
- Website: www.infodas.com
- LinkedIn: www.linkedin.com/company/infodas
- Instagram: www.instagram.com/infodas_gmbh
- Address: Rhonestr. 2, 50765 Cologne, Germany
- Phone: +49 221 70912-0
12. Bridewell
Bridewell supports cybersecurity projects across Europe – especially where on-premise, cloud, and OT systems meet. Most of the consulting ties into broader initiatives like ISO 27001, PCI DSS, or the NCSC Cyber Assessment Framework. Security isn’t treated in isolation – it’s built into architecture, governance, and operations.
Work spans architecture reviews, maturity assessments, virtual security teams, and targeted risk evaluations. Cloud posture and zero trust setups come up often. Bridewell also steps in during M&A activity to evaluate digital risk and clean up problem areas before integration.
Key Highlights:
- Cybersecurity consulting across European sectors
- Practical coverage of OT, cloud, and hybrid infrastructure
- Alignment with ISO, PCI DSS, NCSC frameworks
- Support ranges from strategy to audit remediation
Services:
- Cybersecurity architecture and design
- Cloud security posture management
- Risk assessments and ongoing management
- Cybersecurity audit support and remediation
- Information Security Office as a Service (ISOS)
- Endpoint and OT system security consulting
Contact Information:
- Website: www.bridewell.com
- LinkedIn: www.linkedin.com/company/bridewellsec
- Instagram: www.instagram.com/lifeatbridewell
- Address: Thames Tower, Station Road, Reading, RG1 1LX
- Phone: +44 (0)3308 285 880
13. Intrinsec
Intrinsec supports cybersecurity programs across Europe – mostly in the areas where governance, compliance, and internal culture meet. Projects tend to start with a baseline check. From there, the work moves into program building, regulatory mapping, or continuity planning, depending on what the team needs most.
It’s not just guidance from a distance. Consultants help shape real governance frameworks, prep for audits, and improve internal resilience. Awareness programs and CISO-level input are part of the mix too – especially when the goal is to improve internal capability, not just get a report on file.
Key Highlights:
- Cybersecurity consulting active across Europe
- Focus on GRC, continuity, and internal program development
- Fit for both small teams and larger operations
- Hands-on delivery – not just high-level roadmaps
Services:
- Governance and risk management support
- Regulatory compliance advisory
- Business continuity and resilience planning
- Cybersecurity awareness and training
Contact Information:
- Website: www.intrinsec.com
- E-mail: contact@intrinsec.com
- Twitter: x.com/Intrinsec
- LinkedIn: www.linkedin.com/company/intrinsec
- Address: CBX Tower, 1 Passerelle des Reflets, 92400 Courbevoie
- Phone: +33 1 47 28 38 39
14. Cyber Management Alliance
Cyber Management Alliance runs a modular cybersecurity consulting model designed for organizations at different maturity stages. For teams without a full-time lead, there’s the virtual CISO track. Where the need is more narrow, the consultant or assistant tracks handle task-specific support or short-term advisory.
Rather than trying to apply one framework to every case, services are tailored around what’s actually needed – whether that’s ISO 27001 prep, Cyber Essentials support, or policy documentation. Everything is packaged for clarity, and most of it lands squarely in the “can act on this now” category.
Key Highlights:
- Structured into vCISO, consultant, and assistant models
- Service offered via fixed or task-based packages
- Focus on audit readiness and governance clean-up
- Useful for orgs without dedicated in-house security leadership
Services:
- Virtual CISO services
- Cybersecurity assessments and documentation review
- ISO 27001 and Cyber Essentials preparation
- Risk and compliance advisory
- Policy and strategy development
- Security awareness and training support
Contact Information:
- Website: www.cm-alliance.com
- E-mail: info@cm-alliance.com
- Address: 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Phone: +44 (0) 203 189 1422
15. TechMagic
TechMagic blends software development with practical cybersecurity consulting, working mostly with startups and fast-growing tech firms. The consulting side comes in where resilience and product velocity need to coexist – offering pen tests, secure SDLC help, or guidance around frameworks like OWASP or SAMM.
The goal is usually to get ahead of issues before they spread – starting with risk-based triage, then building out architecture improvements, audit prep, or internal awareness. Each engagement gets tuned to where the team is and what’s at stake.
Key Highlights:
- Cybersecurity support across cloud, app, and network levels
- Strong fit for startup and tech-driven teams
- Mix of testing, compliance alignment, and secure development
- Familiarity with HIPAA, GDPR, and industry frameworks
Services:
- Security risk assessments
- Cloud and network penetration testing
- Secure SDLC implementation
- Security audit and compliance preparation
- Cybersecurity training and education
Contact Information:
- Website: www.techmagic.co
- E-mail: hello@techmagic.co
- Facebook: www.facebook.com/TechMagic.co
- LinkedIn: www.linkedin.com/company/techmagic
- Instagram: www.instagram.com/techmagic
- Address: Zamoyskiego 24, Co-working Cluster Kraków, Poland
Conclusion
Choosing the right cybersecurity partner in Europe isn’t about chasing certifications or checking off a template. What matters is whether someone can walk into the existing system, understand what’s already in place, and spot where things might quietly go wrong. It’s the ability to fix those weak spots before they turn into incidents – and do it without slowing down the business.
The consultancies listed here all approach that job from different angles. Some lead with regulation, others with DevSecOps, others with long-term governance. The tools change, the industries vary, but the core is the same: help organizations protect what matters, without drowning in complexity.
No one-size-fits-all here. Just options for teams who want to stay secure and keep moving.
