CMMC 2.0 Compliance for UK Defense Contractors
Your next US DoD contract depends on your CMMC 2.0 readiness.
Yet your CUI data is still scattered, your systems fragmented, and time is running out.
Kiteworks is the only platform supporting nearly 90% of
Level 2 requirements out of the box– with full
UK-US data sovereignty support.
The CMMC 2.0 Reality for UK Defense Contractors
Critical compliance challenges that could cost you US DoD contracts
2025
Expected start of phased CMMC 2.0 rollout, beginning after final 48 CFR rule publication
Top Secret
Clearance required for many UK-US defense programs
300,000
Defense Industrial Base organizations must comply by 2025
110
Requirements for Level 2 practices aligned with NIST SP 800-171
These statistics reveal why UK defense contractors need a unified CMMC 2.0 platform now. Fragmented systems and manual processes will not meet the expected phased rollout, starting in 2025 once the 48 CFR rule is finalized.
Critical CMMC 2.0 Compliance Gaps
Threatening UK Defense Revenue
British defense contractors handling classified technical data, weapon system specifications, and sensitive military intelligence face critical security gaps. Legacy systems expose defense secrets, threaten operational security, and risk exclusion from vital US-UK defense partnerships.
UK-US Regulatory Complexity
- Navigating US CMMC 2.0 requirements from UK operations
- Managing transatlantic CUI data flows securely
- Understanding NIST 800-171 technical controls
- Coordinating with American C3PAO assessors
- Balancing UK data protection laws with US requirements
Defense Data Exposure Risks
- Weapon system blueprints sent via unsecured email
- Military intelligence shared through consumer platforms
- Defense contractor IP vulnerable to state-sponsored attacks
- Classified project data accessible to unauthorized personnel
US Defense Revenue at Risk
- Loss of lucrative US DoD contract opportunities
- Exclusion from American defense supply chains
- Competitive disadvantage against compliant competitors
- Prime contractor requirements for subcontractor compliance
- Operational readiness risk for US-dependent operations

The Solution: Kiteworks Private Data Network
for UK Defense Contractors
Supporting nearly 90% of CMMC 2.0 Level 2 compliance requirements, Kiteworks provides UK businesses with unified CUI protection and lifecycle management in a single platform.
90% of CMMC 2.0 Requirements Out-of-the-Box
Unlike point solutions that address only portions of the framework, Kiteworks delivers integrated capabilities across multiple CMMC domains with built-in compliance reporting, significantly reducing complexity and cost.
Military-Grade Data Classification & Protection
Protect Controlled Unclassified Information (CUI) throughout its lifecycle with policies that automatically enforce handling requirements for data at rest, in use, and in transit across all communication channels.
FedRAMP Moderate Authorization
Eight years of continuous FedRAMP Moderate authorised security with 325 NIST 800-53 security controls validated by certified third-party assessors. FIPS 140-3 validated cryptography for the highest security standards.
UK-US Data Sovereignty Solutions
Flexible deployment options including UK-based private cloud, on-premises, or hybrid solutions that meet both British data protection laws and US CMMC requirements for seamless transatlantic operations.
Defense Contractor Certification Support
Pre-built assessment reports mapping controls to implementations with comprehensive audit trails for certification evidence. Instant visibility into compliance posture across all CMMC domains.
Hardened Zero-Trust Architecture
Single-tenant hardened virtual appliance with embedded network firewall, WAF, AI-powered threat detection, and customer-owned encryption keys. Multiple layers of protection for board-level confidence.
Kiteworks Private Data Network:
CMMC Domain Expertise Across All Requirements
Kiteworks provides specialized capabilities across critical CMMC 2.0 domains:
Access Control (AC)
Granular RBAC for classified data repositories with attribute-based access controls, advanced risk policies, and principle of least privilege enforcement for defense contractors.
Audit & Accountability (AU)
Tamper-proof logs for forensic investigations with comprehensive user activity tracking and automated compliance reporting for C3PAO assessments.
System Integrity (SI)
Malware protection for defense systems with AI-powered threat detection and security flaw identification to protect against state-sponsored attacks.
Why UK Defense Contractors Choose Kiteworks Over Alternatives

Built for the Needs of Regulated
Industries in the UK
British aerospace companies working on joint UK-US programs like F-35, requiring secure technical data exchange and compliance with both UK export controls and US CMMC standards.
Features:
Secure transmission of classified technical data packages and weapon system specifications
CAD/engineering drawing protection with watermarking
Secure collaboration with US prime contractors
Integration with UK MOD systems and US defense platforms
UK technology companies providing cybersecurity services, software development, and IT support to US defense customers while maintaining UK-based operations.
Features:
Secure development environments for defense software
API-first architecture for system integration
DevSecOps pipeline integration
Multi-tenant isolation for different security levels
British manufacturers in the defense supply chain producing components, systems, and equipment for US defense programs requiring secure supply chain integration.
Features:
Secure supplier portal for partner collaboration
Manufacturing data protection with access controls
Quality documentation and traceability
Integration with ERP and PLM systems
British consulting, legal, and advisory firms providing services to US defense contractors and government agencies with secure document management and client communication.
Features:
Secure client portals with document lifecycle management
Encrypted email and file sharing
Legal hold and eDiscovery capabilities
Microsoft 365 and Office integration
British universities and R&D organizations collaborating on US defense research projects requiring secure intellectual property protection and research data management.
Features:
Secure research collaboration platforms
IP protection with DRM and access controls
Research data classification and handling
Integration with academic and research systems
British systems integrators working on complex defense programs requiring secure integration of multiple systems and technologies across UK-US operations.
Features:
Secure API gateway for system integration
Multi-domain security architecture
Workflow automation and orchestration
Real-time monitoring and alerting
Our Promise
Full data import
Parallel operation
Migration and onboarding support
Clear ROI From Year One
Cost Reductions
*Based on aggregated customer analysis and project experiences
Efficiency Gains
CMMC 2.0 Compliance FAQ
CMMC 2.0 is the US Department of Defense cybersecurity standard with three levels. Level 2 requires 110 practices aligned with NIST SP 800-171 for protecting Controlled Unclassified Information (CUI). Any UK company working on US DoD contracts must achieve CMMC certification to maintain contract eligibility and participate in the US defense supply chain.
Consumer tools lack the enterprise-grade security controls required for CMMC 2.0 compliance. They have limited security controls, compliance gaps, and data residency issues. Kiteworks provides FedRAMP Moderate authorised security, supports 90% of CMMC 2.0 Level 2 requirements out-of-the-box, offers comprehensive audit trails, and includes zero-trust architecture with customer-owned encryption keys – capabilities that consumer platforms simply cannot deliver for defense contractors.
CUI requires specific handling requirements throughout its lifecycle – at rest, in use, and in transit. Kiteworks automatically enforces CUI protection policies with centralized management, granular access controls, comprehensive audit logging, and encrypted communications. This ensures compliance with both NIST 800-171 requirements and UK data protection laws.
Kiteworks PDN strengthens data sovereignty, and offers flexible deployment options including UK-based private cloud, on-premises, or hybrid solutions. This allows British companies to maintain compliance with UK GDPR, Data Protection Act 2018, and other British regulations while meeting stringent US CMMC 2.0 requirements for their American defense contracts.
CMMC 2.0 implementation will begin once the 48 CFR rule is finalized – expected before fall 2025 (Note: Timeline subject to final 48 CFR rule publication by the US DoD) – with a phased rollout over three years. Level 2 requires third-party assessments by CMMC Third Party Assessor Organizations (C3PAOs) every three years. Kiteworks provides built-in assessment support with pre-built reports and comprehensive audit trails to streamline the certification process.
Kiteworks seamlessly integrates with common UK business systems including Microsoft 365, SharePoint, Active Directory, Outlook, and other enterprise applications. The API-first architecture ensures compatibility with existing UK IT infrastructure while providing the security controls necessary for US defense work.
British firms without CMMC 2.0 certification will be excluded from US defense contracts, losing access to substantial American defense contract value. This affects not just prime contractors but also UK suppliers and subcontractors throughout the transatlantic defense supply chain, potentially impacting billions in UK-US defense trade.
With Kiteworks supporting nearly 90% of Level 2 requirements out-of-the-box and eight years of FedRAMP Moderate authorization, UK companies can accelerate their compliance timeline from years to months. Our platform eliminates the need to implement and integrate multiple security tools, dramatically reducing time-to-compliance for UK defense contractors.