SII UK is a specialised provider of software, systems, manufacturing and electronic engineering, project management, and IT services with a focus on the aerospace, defence and space domains but also covering transportation and energy. We cover the length and breadth of the UK.
Celebrating our 10th anniversary in 2025, we're proud to be part of the global SII Group, which brings over 40 years of industry expertise to our operations.
Our Mission
At SII UK, our mission goes beyond conventional engineering services. We develop sophisticated information and mission systems that form the backbone of critical operations in aerospace, defence and space. We're passionate about contributing to the design and development of future products and services that advance our clients' capabilities and strategic objectives.