The paper analyses the modern integration mechanisms: international organizations and associations. In economic theory, space is seen as an active factor of economic growth. Analyzing the new trends of devolopment of global integration processes in geographic space and determining the impact of regional integrated alliances of developed, developing and transition economies on the prospects of globalization becomes relevant. Preconditions of occurrence of integration unions in the context of exiting regional trade agreements and the classification of of the world's regional associotions in the context of the exiting formats and models of integration were considered in this article. Also efficiency of these associations for trade was examined by author.