Acted as an external PhD examiner on 30 occasions in a range of UK and European Universities, including Cranfield, Oxford Brookes, Napier, Leeds, Loughborough, Imperial College, Aston, Cardiff, Westminster, University of the West of England, Oxford, Eindhoven, Free University of Amsterdam, Helsinki University, Stockholm Institute of Technology, and the University of New South Wales.

External examiner for Masters courses at Newcastle (1997-2001), Leeds (1997-2001) and Oxford Brookes Universities (2002-2006).