They “copy, acquire, and kill” small businesses. Some call them a “walled garden” on the web, increasingly keeping users within their sites. They neutralize competitors and are known as gatekeepers. So how can they be dealt with? The European Commission is reviewing competition rules, as well as considering novel regulation for the data economy. If enacted, these proposals will radically change the digital environment and Europe’s approach regarding how to deal with the concentration of data in the hands of a few players. The European Data Summit will address the policy options currently being discussed during the German Presidency. The event will showcase a proposal from Philip Marsden and Rupprecht Podszun from their study conducted on behalf of the Konrad-Adenauer-Stiftung about the interplay of various regulatory instruments. From platform regulation to data trust, from data altruism to open data, the Summit will examine levelling the playing field in digital Europe.