Across the UK defence industry, primes and tier-two manufacturers are under increasing pressure to deliver programmes at pace. Production capacity, skills availability, and qualification constraints are creating challenges across the supply chain – driving demand for trusted UK partners with the capability, security, and flexibility to respond quickly.
Our role is to help customers overcome these challenges. As a UK-owned, List X secure electronics manufacturer operating from sites in Hook, Hampshire, and Poynton, Cheshire, we provide an end-to-end service that combines build-to-print expertise with system integration, test, and long-term support.
By working closely with leading defence and aerospace organisations including; Leonardo, Collins, Thales, MBDA, and BAE Systems, we help customers manage offload requirements, relieve production bottlenecks, and maintain programme continuity. Our teams are experienced in verifying complex data packs, optimising designs for manufacturability, and producing reliable electronics for the most demanding environments.
This capability is increasingly important as the UK accelerates investment in replenishment programmes, digital integration, and new technologies. With defence electronics forecast to grow by around 6% per year, and primes seeking greater UK-based resilience, STI’s capacity and accreditation position it as a dependable extension of the nation’s industrial base. Our performance: 97–98% on-time delivery and 99% quality demonstrates the level of discipline and assurance customers require when programme timelines and operational readiness are critical.
By combining technical excellence with proven delivery performance, STI continues to support the defence community in achieving reliability, sovereignty, and mission success.