In recent years, reflection on institutions has assumed great prominence in Italian Theory. Roberto Esposito especially, in his three most recent books, has provided a genealogy of institutions, aimed at challenging the prevailing way in which they have been thematized in Western thought. As he sees it, a repressive conception of institutions has dominated in philosophy as well as in sociology and legal studies, which views them as apparatuses that limit the free expansion of individual instincts and life itself. Following an original hermeneutic path, the Italian philosopher seeks to pull through strands of thought that understand the concepts of institution and life to be mutually implicated rather than opposed to each other. This article starts from Roberto Esposito’s work on institutions, clarifying its meaning and perspective. It then draws connections between Esposito’s instituent thought and a few focal points of contemporary sociological thought on institutions. Specifically, it analyzes how Esposito’s post-normative perspective presents similarities with the ‘cognitive turn’ in the institutional thought of new institutionalism, among other sociological schools. The article concludes by showing that Esposito’s work and its connections with sociological thought enable one to reflect critically on a number of practices spawned in the ‘platform society’ by new institutional actors such as Big Tech.