Drawing on different literatures, ranging from research on business associations and “global governance” to that on the social production of ignorance or on “corporate crime”, this chapter aims to contribute to existing work on the capacity of corporate actors to govern and administer the world. We analyze corporate actors not just as actors that influence policy but as actors who have acquired an unprecedented capacity to transform and shape the social world. We will use two related concepts to take account of this power: “pervasive powers” and “corporate authority”. The concept of the “pervasive powers” of large corporations and industries relates to the idea of diffuse and generalized powers that have both macro and micro dimensions. The concept of “corporate authority” aims to describe what these diffuse powers produce: the growing social and political legitimacy of corporate actors, imposing specific material and normative orders that compete or hybridize with those of states. We highlight the importance of the “corporate repertoire of actions” when considering the diversity of the work done by corporate actors to consolidate and perpetuate their power. We also focus on the material dimension and the irreversibility of their actions. Finally, we discuss what these forms of power do to democracy.