Tom Stewart is the founder of System Concepts. He was an original member of the Human Sciences and Advanced Technology (HUSAT) Research group at Loughborough University in 1970. In 1979, he joined the management consultancy Butler Cox and Partners and worked on assignments in Europe, North America and Australia where he was mainly concerned with making computer systems usable by and acceptable to non-computer staff at all levels.
He joined System Concepts in 1983, became Managing Director in 1986 and Executive Chairman in 2008 and has managed the growth of the company to become one of the largest independent ergonomics, usability and user experience consultancies in Europe. He is active in British, European and International ergonomics and usability standards and chairs the ISO committee responsible for the ergonomics of human-system interaction (including ISO 9241). Tom is a past President of the Institute of Ergonomics and Human Factors.