Iran is one of the 20 biggest countries of the world based on the vastness and population. It is the second big economy in the Middle East and is one of the 5 superior countries of the world based on underground resources. In Iran there are lots of capacity and opportunities; however, presences of the international companies have been reduced regarding the sanctions in recent years. After the nuclear agreement and JCPOA implementation Iran has became visible for international companies and mostly named the last untapped market of the world. Now, Iran is one of the most attractive markets in the world and in this section some sample reports are provided for better understanding of this issue.