Globalization implies an economy characterized by the rapid development of international trade, i.e. the opening of borders and the smooth exchange of goods, the expansion of capital and the abolition of customs barriers. It is a process of economic, political, cultural and social activity at a supranational level. As the biggest negative aspect, along with many positive ones, is the bad economic position of the less developed countries and, accordingly, the great differences among peoples in the world. Globalization has a major impact on multinational corporations that, thanks to globalization, have gained opportunities to grow and expand to global markets and increase economic activity in all countries of the world. Their business is characterized by geographical distribution, size of total income and profits, as well as capital and number of employees. They are the most important promoter of globalization. In this work, I have shown the top 10 most developed and most powerful corporations whose total revenue is so great that they even exceed GDP in some countries. Globalization is discussed on two famous companies, Walmart as a company that has been in the TOP 10 for 22 years by Fortune and McDonald's that has gained popularity spreading to all global markets. Their growth would not be possible without globalization and all the benefits it carries with it.