STI Ltd is a UK electronics manufacturing services partner specialising in complex, mission-critical systems. From our UK Sovereign accredited sites in Hook and Poynton, our engineers manufacture high-reliability electronic systems for defence, aerospace and security programmes, supporting applications such as sensing, communications and autonomous platforms. Our capability spans PCB assembly, RF systems, wiring, environmental test and full product to systems build. We manage all stages involved in delivering complex electronic systems. Our teams validate design data, improve it for manufacture and test, source and control materials, build and integrate assemblies, verify performance and provide ongoing support. This joined-up approach reduces risk, shortens lead times and gives customers systems that work as intended from the start.