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Intergovernmental organizations (a.k.a. International
Governmental Organizations or IGOs) are organizations comprised primarily of
sovereign states (referred to as member states). The missions of IGOs are usually to promote
similar interests (e.g. a culture; a commodity; etc.)
Non-governmental organizations (NGOs) are generally
non-profit groups not affiliated with any government; it can operate locally, nationally,
and/or internationally. The missions of NGOs
are usually to influence public policy – social, economic, etc.