Colyn has conducted executive development programmes for senior directors of leading global banks, presented at international banking conferences and was a consultant to many of the world's largest banks and organisations including the World Bank, the IMF, the Saudi Arabian Monetary Agency and Central Bank of Nigeria. Colyn was also a regular contributor of articles to international financial magazines on banking training and executive development subjects, editor-in-chief for some sixty distance learning workbooks on banking subjects and has co-authored two books: Sources of Corporate Finance in Western Europe and Europe’s Short-term Money Markets, with James Maycock, Director of the Institute of European Finance.
As an academic, Colyn was Professor and CEO of the Management Centre at Bangor Business School, the No. 1 Business School in the UK and Europe’s No.1 ranked Banking and Finance Faculty, Deputy Vice-Chancellor and Dean of Sunway University Business School, and Visiting Professor at Cass Business School, City University London in the UK, which is ranked in the top one percent of business schools worldwide. He is also a Council Member of Bank Negara Malaysia’s Financial Services Talent Council, a high level think tank charged with developing human resource talent for the financial services industry in Malaysia.