Julian Guest has a PhD in molecular neurobiology and a diploma in marketing. After obtaining his doctorate from The Institute of Neurology, London University, Julian continued with genetic research prior to joining the pharmaceutical industry to conduct international clinical trials. From clinical trials, Julian moved into marketing and health economics and, in 1991, established CATALYST.
Under Julian's direction, CATALYST has undertaken numerous international health outcomes research projects in diverse therapeutic areas in Europe, North and South America, South Africa, the Middle East, Far East and Australasia. Julian has published extensively in the field of pharmacoeconomics in relation to these different therapeutic areas and presented at numerous international conferences. In September 2005, Julian was appointed Visiting Professor of Health Economics at the Postgraduate Medical School, University of Surrey and in September 2010 was appointed to a similar position at King's College, London.