This document defines and describes various types of non-state institutions, including banks and corporations, cooperatives and trade unions, transnational advocacy groups, development agencies, and international organizations. It explains that non-state institutions are people and organizations that participate in international affairs without being affiliated with any state or nation. It then provides details on the purpose and function of banks, corporations, cooperatives, trade unions, transnational advocacy groups, development agencies, and two types of international organizations: international non-governmental organizations and intergovernmental organizations.