Top Ten Most Powerful Countries in the World. The top ten most powerful countries in the world based on the GLOBAL PRESENCE INDEX 2014 are the United States, United Kingdom, Germany, China, France, Russia, Japan, Netherlands, Canada and Italy.op Ten Powerful Nations 2013 (According to Global Presence). Top Ten Powerful Countries Ranking (2012). NOTE: National Power Index (NPI) 2012 is a comprehensively revised version of the previous National Security Indexes published in India’s National Security Annual Review (INSAR) series since 2002.