Some common and influential classes of NSAs are listed here in alphabetical order:
Business magnates are individuals who command large wealth, and who often seek to influence national and international affairs. Examples are Warren Buffett and Bill Gates.
Decentralized autonomous organizations s, sometimes known as decentralized autonomous corporations, operate according to rules encoded as computer programs called smart contracts. The crypto-currencyBitcoin is an example of a DAO which, as of 2018, has grown to become economically influential.
International media agencies, which are also usually corporations, report on the social and political situation in countries worldwide, and may therefore be highly influential as NSAs. Examples of such agencies are AFP, EFE, Reuters, AP, RIA Novosti and Xinhua.
People's movements are mass movements which become influential with size and longevity. Examples include the movements arising during the Arab Spring of 2011.
Transnational diaspora communities are ethnic or national communities that commonly seek to bring social and political change to their originating countries and their adoptive countries. The Israeli diaspora is an example.
Unincorporated associations, secret societies and civic organizations unknown to or unrecognized by the state or government may be considered non-state actors.
The proliferation of non-state actors in the post–Cold War era has been one of the factors leading to the Cobweb Paradigm in international politics. Under this, the traditional Westphalian nation-state experiences an erosion of power and sovereignty, and non-state actors are part of the cause. Facilitated by globalization, NSAs challenge nation-state borders and sovereignty claims. MNCs are not always sympathetic to national interests, but instead are loyal to the corporation's interests. NSAs challenge the nation-state's sovereignty over internal matters through advocacy for societal issues, e.g. human rights and the environment. Armed non-state actors operate without state control and are involved in internal and trans-border conflicts. The activity of such groups in armed conflicts adds layers of complexity to traditional conflict management and resolution. These conflicts are often fought not only between non-state actors and states, but also between multiple NSA groups. Interventions in such conflicts is particularly challenging given the fact that international law and norms governing the use of force for intervention or peacekeeping purposes was primarily written in the context of the nation-state.
In practice, it means that participation is open to all kind of actors, such as community-based organisations, women's groups, human rights associations, non-governmental organisations, religious organizations, farmers' cooperatives, trade unions, universities and research institutes, the media and the private sector. Also included in this definition are informal groups such as grassroots organizations, informal private sector associations, etc. The private sector, however, is considered only insofar as it is involved in non-profit activities
Roles
Non-state actors can aid in opinion building in international affairs, such as the Human Rights Council. Formal international organizations may also rely on non-state actors, particularly NGOs in the form of implementing partners in the national context. An example is the contribution of COHRE, to the protection of land and property rights in Kosovo by conceptualizing the Housing and Property Directorate within the framework of the United Nations Interim Administration Mission in Kosovo. Non-state actors are fundamental agents in helping to achieve both national and international development goals, such as those around climate change. Actions by non-state actors contribute significantly towards filling the greenhouse gas emissions gap left by unambitious or poorly executed national climate policies, Intended Nationally Determined Contributions. Another example that shows the importance of non-state actors in peace-building is the contribution of ICBL to the international prohibition on the use of landmines. ICBL is a global network of NGOs that has operated in over 90 countries since 1992. Its primary goal is to make a world free of anti-personnel landmines. Their passionate advertising appealing for global cooperation drew Diana, Princess of Wales to become an ardent advocate. Together, they brought the issue to the United Nations General Assembly. ICBL's efforts led the international community to urge states to ratify the Ottawa Treaty in 1997, and its contribution was recognized and praised as it was awarded the Nobel Peace Prize in the same year.