Migration and international trade are two important dimensions of globalization. Migrants can influence on countries' trade, they are able to decrease the transactional costs for companies willing to trade. Researches showed that companies with more ethnical differences are more successful. Migrants' familiarity with host countries helps companies to better, cheaper and faster understanding the markets of other countries, therefore, they have more chances to successfully expand their business overseas. The paper analyzes a case of Iranian immigrants in Russia. Iranian businessmen have been interviewed on their roles, any advantages in in the host country in comparison with those in the home country. The results showed the factors that could influence on business processes and challenges of Iranian migrants.