Secure Cloud Migration for a Major UK Government Department

Industry: UK Central Government

Services: Operational Resilience & Cyber Readiness | Identity, Data & AI Risk Controls

Duration: 12 months

The situation

A major UK Government department was running mission-critical applications from ageing data centres. The infrastructure was expensive to maintain, difficult to scale, and increasingly difficult to secure against modern threats. At the same time, 5,000 endpoint user devices needed consistent protection and management, something that had become fragmented across teams and locations.

The department needed more than a lift-and-shift migration. They needed a secure, resilient cloud environment built to government standards, with endpoint security embedded from day one rather than bolted on afterwards.

What we did

We partnered with the department to design and execute a migration that treated security as a first-class requirement, not an afterthought.

Built the migration strategy and roadmap. Working with senior stakeholders, we developed a phased migration plan that prioritised resilience, scalability, and compliance. Every stage was sequenced to minimise disruption to live services while decommissioning legacy systems on a clear timeline.

Designed secure cloud architecture. We produced detailed architectural and engineering blueprints for the target cloud environment. Security was embedded into every layer: network segmentation, encryption at rest and in transit, identity-based access controls, and continuous monitoring.

Secured 5,000 endpoint devices under a Zero Trust model. We deployed advanced endpoint detection and response (EDR), enforced multi-factor authentication across the estate, and implemented Zero Trust Network Access to ensure that every device proved its posture before accessing cloud resources. A centralised management platform replaced the patchwork of tools that had accumulated over the years, making policy enforcement consistent and auditable.

Provided hands-on transition support. Our team worked alongside the department's IT staff throughout, providing training, documentation, and on-the-ground support to ensure teams were confident operating the new environment independently.

The results

• £2 million in annual cost savings from decommissioning legacy data centre infrastructure and optimising cloud usage
• 5,000 endpoints secured and centrally managed under a single Zero Trust policy framework
• Full compliance with government security standards across the new cloud environment
• Improved operational resilience with a modern, scalable infrastructure designed for long-term use

The department now operates a cloud environment that meets the security and resilience standards expected of central government, with simplified device management and significantly lower operating costs.