In 2013, Stuart was appointed CEO of the Satellite Applications Catapult, an independent research and development centre established by Innovate UK to stimulate growth in the UK economy by accelerating the development and take up of emerging technologies.  His leadership of the Satellite Applications Catapult places the commercial exploitation of space right at the heart of the UK growth agenda, and the ambition established by the Space Innovation and Growth Strategy of 2010 to create 100,000 new jobs in the sector by 2030.

Prior to this recent appointment, Stuart was a partner at Logica (now CGI), a large European business technology company where he was responsible for the worldwide space business, employing over 300 staff. More recently, Stuart held the position of Vice Chair of UKspace, the UK trade association for space business, he was a member of Eurospace Council (the European equivalent), and chair of UK judges for the annual European Satellite Navigation Competition, also known as the Galileo Masters.

Stuart holds a BSc in Physics (first class) from Imperial College and, in 2013, was elected a Fellow of the Royal Aeronautical Society and the Institute of Physics.