Stewart is responsible for the commercial development and operation of VSNi, with emphasis on strategic issues and commercial agreements. Stewart is also responsible for VSNi’s finances and administration. Stewart has previously held senior finance positions in the IT industry, and has most recently several years’ experience of developing international operations within the scientific software industry (particularly although not exclusively in the Asian/Far-Eastern markets). He has a finance degree and is a Fellow of the Chartered Institute of Management Accountants.
Stewart is also the current Chairman of NAG Ltd.
Roger is responsible for the technological delivery and development of VSNi’s products and services, and for ensuring that the scientific expertise (both in-house and third party) within our disposal is of the highest standards. He also acts as our primary liaison with the worldwide statistical community, utilising his wide personal and professional contact network. Roger has extensive experience of pioneering statistical computing, consulting and research. He has a degree in mathematics, diploma in mathematical statistics (with distinction) and a Ph.D. from University of Cambridge, and is a Chartered Statistician of the Royal Statistical Society. In addition to serving on the committees of many statistical societies he holds a visiting professorship at Liverpool John Moores University.