Credit unions encourage savings of citizens, setting compensation payments (interest) on savings and provide from these savings loans to their members. Credit unions of the open type are still controlled by their members, but at the same time provide services to people who are not its members (external customers). Credit unions are financial institutions, financial cooperatives of citizens, and in this capacity they are above all associations of people, not unification of capitals, which is typical, for example, for public companies. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity. Corporate alliances are intermediaries between credit unions and financial markets.