Joined the Board in December 2010 as a non-executive director. He became Chief Executive on 1 April 2011 and was appointed Executive Chairman on 18 May 2011. He was formerly Chief Executive of Atex Media Command Limited and Chairman of Genus plc and prior to that was Chief Executive of Anite plc where he was responsible for taking the Group from a £68m loss to a £30m profit. He spent 25 years with Philips Electronics most recently as Global Head of Multimedia and was instrumental in formulating the DVD standard. John is also non-executive Chairman of Psion plc.

Joined the Board in January 2000 and was appointed Company Secretary in October 2000. He previously held the positions of Finance Director of the Mitsubishi Electric Corporation PC Division and Group Finance Director of Bluebird Toys plc.

Joined the Board in 2006. He is Chairman of MetaSphere Ltd and Spinflow GmbH and is a director of Access2 Ltd and Waterscan Ltd. Previously he was CEO of UDEX Holdings Ltd and headed the Broadcast Systems Division of VITEC Group plc. Robin has built a career running successful technology businesses.

Joined the Board in October 2007. He is a former Head of Corporate Finance (Europe) at BNP Paribas and senior executive within BNP Paribas UK. He also previously held senior management roles within Charterhouse Bank and Robert Fleming. Oliver previously served as a nonexecutive director with McCarthy & Stone plc, Notting Hill Housing Trust and Cenkos Securities plc. He currently holds non-executive directorships in a number of companies including the Irish Bank Resolution Corporation Limited and the Naafi Pension Fund. Oliver is also Chairman and owner of Woking Storage Solutions.

Joined the Board in October 2011. He has spent 35 years in the broadcast industry, including Director of Technology and Chief Technology Officer for Granada. He was Global Chief Technology Officer at the BBC, and has spent the last five years working as an advisor and NED for emerging technology companies, combined with work across a broad range of organisations inside and outside the broadcast sector. John is a member of OFCOM's Advisory Committee for England.

Joined the Board on 1 October 2011. He has worked primarily within the Ministry of Defence and was Group Managing Director of the Defence and Technology sector at QinetiQ plc, going on to become the Group Technology Officer. Andrew holds several advisory positions, including Vice Chair to the European Advisory Group for security research and between 1998 and 2009 he was a member of the OFCOM Spectrum Management Advisory Board. Andrew is an Adjunct Professor at Imperial College Business School.