Alexander Graf Lambsdorff was the guest of the Brussels section of HES on 29 May 2012. The deputy leader of ALDE (liberal) political group in the European Parliament made a presentation entitled "The Future of the Union: Federation or Re-nationalisation?".
The debate series "Marching In of the Hungarians" organised by the Hungarian Europe Society and the European Political Unit of the Hungarian Political Science Association was continued on Tuesday, 10 April 2007 in the Merlin Theatre.
Péter József Martin, member of the Hungarian Europe Society, Executive Director at Transparency International Hungary made a presentation to HES members in Brussels on 6 June 2017.
The Hungarian Europe Society organised a workshop entitled "Illiberal democracies – what can the European Union do in case a member state regularly and systematically breaches European values and regulations?" on 2 June 2015 in the European Parliament, Brussels.