Prior to joining Ceannas he was Director of Innovation Leadership with Drummond International.
Professor Ledingham’s long-term research has focused upon the leadership behaviours and cultures associated with high performing organisations. Emerging from this work he developed the Seven Sides of Educational leadership, which evolved into ‘The Ceannas Leadership Index®' to help chief executives identify and benefit from marginal leadership gains. He has practical leadership experience from a wide range of senior executive positions, including responsibility for over 4,500 staff, a budget of £250 million, and a range of ‘high-stakes’ services as Scotland’s first executive director to simultaneously work across two local authorities.
He was headteacher of Dunbar Grammar School, which was judged to be one of the ten most improved schools in Scotland during his headship. He is a non-executive Director and Depute Chair of the Scottish Book Trust.