how many countries are in the wto
159. Not too many people know that the World Trade Organization (WTO) is an organization that intends to supervise and liberalize international trade.WTO officially commenced on 1 January 1995 under the Marrakech Agreement.This organization deals with regulation of trade between participating countries. There are 159 countries in WTO. This organization provides a framework for negotiating and formalizing trade agreements.TO officially commenced on 1 January 1995 under the Marrakech Agreement. This organization deals with regulation of trade between participating countries. There are 159 countries in WTO.