He is a renowned Ghanaian economist, leadership expert, social entrepreneur, and Chairman of Accra College of Medicine. He is the former Director General and Rector of the Ghana Institute of Management and Public Administration.

Prof. Stephen Adei has also served as the chairperson of the National Development Planning Commission, Senior Economist of the Commonwealth Secretariat, London (1986-1989), and the board chairman of the Ghana Revenue Authority. He is the CEO of GCIHS and chairman of ten (10) private institutions and company boards.