The monograph focuses on the human rights challenges that are associated with the involvement of States in economic activities and on the role that international law has to play in addressing and understanding some of those challenges. State-owned entities are looked at through the lens of several topics of international law that have been found to hold particular relevance in this context, such as the concept of legal personality in international law, the process of normativity in international law, State immunity and State responsibility. The monograph shows how SOEs have had a significant role in shaping the evolution of international law and how, in turn, international law is currently shaping the evolution of State-owned entities. By focusing on State-owned or State-controlled business entities, rather than private corporations, the monograph aims to offer an alternative perspective on the challenges associated with corporations and human rights.