Stephan has been involved with the Pro-European movement for over 20 years. He has participated in many organizations including the Young European Federalists (JEF) and the European Federalist Party (EFP). He was even on the council when the Parti Fédéraliste and Europe United merged to create the EFP. He has a strong interest in the importance of Europe's regions and their increasing cultural and political importance in a united Europe. At the moment he lives in London, where he has developed a very successful IT business. He also has many ideas and plans for the Pro-European movement, and especially in finding ways to unite the many pan-European organizations.