| 1979-1981 | BSc, Economics, University of Buckingham |
| 1981-1993 | Founder & Managing Director, Marton Diagnostics and Marton International, London |
| 1983-1984 | MSc, European Studies and International Relations, London School of Economics and Political Science, University of London |
| 1985-1987 | MBA, Business Administration and Management, London Business School |
| since 1989 | Founder President, Progressio Foundation, Rotterdam |
| Initiated, or invited to, lead 300 projects in 30 countries in pursuit of 2 'civic enterprise & the civic economy'. Partnered with UN agencies, philantropies, businesses, governments, NGOs, investors and thought-leaders. |
| 1993-1994 | Co-Founder & Executive Director, Social Venture Network Europe |
| 1996-1997 | Visiting Lecturer, MBA Program, Rotterdam School of Management, Erasmus University, Rotterdam |
| 1996-1998 | Development Director, New Academy of Business |
| 2003-2004 | Co-Founder, Spirit in Business, Zurich |
| 2013 | Advanced Leadership Fellow, Harvard University |
| since 2013 | Executive Fellow Enterprise Acceleration, Rotterdam School of Management, Erasmus University, Rotterdam |
| since 2014 | Co-founder, B Lab Europe, Amsterdam |
| 2015-2016 | DCI Fellow, Entrepreneurship with Science & Technology focus, Standford University |
| since 2016 | Chairman, SIX - Social Innovation eXchange, London |
| since 2017 | Member of the Advisory Committee, DanoneWave |
| Global Ambassador, B Lab, Amsterdam |
