Translating Institutions outlines a framework for research on translation in institutional settings, using the Finnish translation unit at the European Commission as a case study. Because of their foundational multilingualism, the institutions of the European Union could be described as both translating and translated institutions. The European Commission alone employs nearly two thousand translators, and it is translators who draft the vast majority of outgoing EU messages. Translating Institutions sets out to explore the organizational role and professional identity of this group of cultural mediators, a group that has remained relatively invisible despite its size and central institutional role, and to use the analysis of this data to elaborate broader methodological and theoretical issues.