Within the framework of “3.0” globalisation3 and of the construction of what some authors name the globalisation of law, the European Community Law System – despite the fact that it has not been the object of extensive study outside of the borders of the Union – provides an important number of concepts that allow the development of analysis directed at the construction of juridical conceptual global references. Bearing this situation in mind, in this article I seek to analyse one of the concepts of European Community Law which, within the ambit of public law and particularly administrative law, has not only determined certain recent evolutions of these branches of law, but also, because of the wide economic and social content that it presents, has the potential to guide the process of consolidation of one of the juridical foundations of a global world: the notion of Services of General Interest. In this way, through the analysis of the conceptual construction of this notion, this article aims to demonstrate why Services of General Interest, based on the combination of the notions of Services of General Economic Interest and of Universal Services, and leaving behind the logic of the categorizations and rigid classifications which characterize public law and especially administrative law, constitute a wide and dynamic notion that allows to relinquish the “classic” notion of public service in favour of the construction of a global law.