Historically, credit unions were preceded by widespread development of credit cooperation in many countries of Europe and America. Activity of the credit union consists of organizing mutual financial assistance by meeting the needs of its members in the services of saving and obtaining loans. All the members of the credit union, regardless of gender, ethnicity, religious and political beliefs, as well as the size of the monetary share have equal rights. In the credit union compensation for use of the loan (interest) is a source of compensation for savings. Credit cooperatives and credit unions exist in many different forms. The main differences relate to the nature of the membership and the opening of a credit institution. Unlike banks, in order to use the services of a credit union, you have to become its member, having written an application and having paid thus shares and membership fee. Corporate alliances are intermediaries between credit unions and financial markets.