Independent nuclear security expertise
Civil Nuclear Security Ltd provides specialist advisory and independent assurance services focused on the design, performance and continuous improvement of nuclear physical protection systems. We help clients ensure their security arrangements are threat-informed, consequence-driven, and demonstrably effective.
We translate the complex threat considerations into practical protection outcomes and give independent confidence that nuclear security systems achieve the results they are designed for.
In the UK civil nuclear sector, security systems must perform reliably in a high-consequence environment. While controls may be installed and maintained correctly, the critical questions remains:
Do they achieve the required protection effect against the defined threat?
Our role is to provide independent, technically grounded support that strengthens confidence in the performance, coherence and resilience of nuclear physical protection systems.
WHAT WE DO
Physical Protection System Advisory
Independent review of defence-in-depth arrangements
Physical Security Vulnerability Assessments
Operational Requirements
Facility / Site Security Plans
Protection layer validation and coherence assessment
Performance and design review
Proportionate mitigation recommendations
Threat-to-Protection Translation
Contextual interpretation of the Design Basis Threat
Conversion of threat information into practical protection outcomes
Articulation of risk appetite
Control effectiveness analysis
Independent Security Assurance
Claims–Argument–Evidence structuring
Gap analysis against regulatory expectations
Inspection readiness support
Security review across the project lifecycle security review
Targeted Insider & Security Culture Support
Insider risk posture assessment
Behavioural risk insights
Governance and reporting framework development
Civil Nuclear Security Ltd does not provide guarding services or equipment installation. We provide independent advisory and assurance support.
HOW WE WORK
Independence
We operate independently of equipment suppliers, guarding providers and system installers. Our advice is evidence‑led, objective and outcome‑focused.
Regulatory Awareness
Our work is aligned with UK nuclear regulatory expectations and national protective security guidance, helping clients meet their obligations with confidence.
Technical Credibility
Our recommendations are grounded in real nuclear site experience, ensuring they are practical, realistic and implementable.
Proportionate Risk Thinking
Every recommendation considers threat context, operational impact, affordability, achievability and demonstrable security benefit.
Clear Communication
We present findings in a structured, accessible way for project teams, security managers, senior leaders and regulatory interfaces.
CONTACT
For further discussion regarding nuclear physical protection system advisory and assurance support, please contact:
Email: chris.cnsltd@gmail.com
Location: West Cumbria, United Kingdom