Non-state actors are increasingly assuming an active part in the design and construction of the institutional framework of global governance. The introduction of the concept of private authority in the literature has provided us with an insightful analytical tool for a deeper understanding of the role of private actors in the context of global governance. However, in order to achieve this objective the concept of private authority needs to be defined accurately and applied consistently in the examination of non-state governance schemes. This article aims to delineate the concept of private authority in the context of global governance first, by outlining the main characteristics of authority and identifying instances of inconsistent and loose application of these characteristics in the private authority literature and secondly, by offering a starting point for an analytically consistent typology of non-state authority. Following this analysis, a more thoroughly defined and analytically consistent concept of transnational in authority is presented. This new conceptualisation locates non-state in authority in the amalgamation of public authority and private power in the context of complex transnational governance structures, and can hopefully helps us gain a deeper understanding of the increasing institutionalisation and legitimation of transnational non-state governance.