We work with defence, aerospace and security customers on programmes that depend on reliable electronic systems. Our teams deliver across land, air, sea and cyber, supporting applications such as sensing, communications and autonomous platforms.

Who we are
STI transforms complex challenges into engineered certainty, by delivering full-system electronics that perform, integrate, and meet real-world demands.
STI is a UK electronics manufacturer specialising in complex, mission-critical systems. We work UK Sovereign accredited facilities in Hook and Poynton, where our teams engineer, build and test full-system electronics for defence, aerospace and security programmes. Our work ranges from PCB assembly and RF systems to wiring, cabinet build and complete integrated units.
We exist to give defence, aerospace & security customers total confidence in the electronics behind their most critical systems.
Our facilities
Our history
1989
Founded
Company founded, early focus on high-reliability PCB assembly.
2000s
Expansion
Expansion of test, RF and wiring capability. First major defence integrations.
2010s
Two-site strategy
Establishment of systems build at Poynton and continued investment in environmental and RF test.
Today
Transformation
A specialist UK provider of complex, mission-critical electronic systems with integrated engineering, build and test capability across two well invested facilities.

Proud accredited members
We are active members of ADS Group and Make UK Defence. These relationships help us stay aligned with sector needs, skills development and wider industry standards.




