CMMC 2.0 Certification Services – Your Trusted Partner for US Defence Compliance
Perry Johnson Registrations Ltd. is your trusted partner for CMMC 2.0 certification services in the UK, supporting organisations that supply or plan to supply the US Defence Industrial Base (DIB).
As cyber security requirements across global defence supply chains continue to tighten, UK-based contractors and suppliers must demonstrate compliance with the Cybersecurity Maturity Model Certification (CMMC) framework to remain eligible for US Department of Defense (DoD) contracts.
PJR helps organisations navigate these complex requirements with structured guidance, audit expertise, and international certification experience.
👉 Learn more about ISO/IEC 27001 certification services that support CMMC alignment
Understanding CMMC 2.0 (UK Supplier Focus)
The CMMC 2.0 framework is designed to protect:
- Federal Contract Information (FCI)
- Controlled Unclassified Information (CUI)
These controls apply across global defence supply chains, including UK-based suppliers supporting US defence contracts.
CMMC 2.0 is structured into three levels:
- Level 1 (Foundational) – Basic cyber hygiene controls, typically self-assessed
- Level 2 (Advanced) – Alignment with NIST SP 800-171, requiring third-party assessment for most contracts involving CUI
- Level 3 (Expert) – Advanced protection for highly sensitive defence programmes
👉 Explore how information security management systems (ISMS) support compliance
UK Organisations and CMMC Compliance
UK defence suppliers, aerospace contractors, and technology providers working with US partners must increasingly demonstrate cyber security maturity aligned with international standards.
CMMC 2.0 aligns closely with:
- UK GDPR (data protection obligations)
- UK National Cyber Security Centre (NCSC) Cyber Assessment Framework (CAF)
- ISO/IEC 27001:2022 Information Security Management Systems
While CMMC is a US framework, UK organisations benefit from aligning existing ISMS processes to reduce duplication and compliance costs.
What is a C3PAO?
A CMMC Third-Party Assessment Organisation (C3PAO) is an approved body authorised to conduct formal CMMC Level 2 assessments.
If your organisation processes Controlled Unclassified Information (CUI), a C3PAO assessment is typically required to achieve certification eligibility.
PJR works within the global certification ecosystem to ensure assessments are conducted with independence, consistency, and technical integrity.
What is an LCCA?
An Lead CMMC Certified Assessor (LCCA) is a highly qualified professional responsible for leading formal CMMC assessments under a C3PAO.
They oversee:
- Audit planning and execution
- Interpretation of CMMC requirements
- Final compliance evaluation
Using qualified assessors ensures your certification process is carried out with technical accuracy and consistency.
Why Choose PJR for CMMC 2.0 Certification?
With over 30 years of international certification experience, Perry Johnson Registrations Ltd. is a trusted partner for organisations operating in regulated and high-risk sectors.
Defence & Aerospace Expertise
We have extensive experience auditing organisations in aerospace and defence sectors, including:
- AS9100 quality management systems
- ISO 9001 quality frameworks
- ISO/IEC 27001 information security systems
This provides a strong foundation for supporting organisations pursuing CMMC compliance in the UK.
Global Capability, UK-Focused Delivery
- International certification presence across 60+ countries
- Over 40,000 active certifications globally
- Dedicated UK client support and project management
The PJR Advantage
- Transparent pricing structure
- No unnecessary administrative fees
- Dedicated UK-based point of contact
- Access to cyber security webinars and readiness tools
Start Your CMMC 2.0 Journey
Organisations supplying the US defence sector must demonstrate strong cyber security maturity and structured compliance.
PJR helps UK-based companies prepare for CMMC 2.0 certification requirements with clarity, structure, and audit readiness support.

