To date, credit unions - virtually the only form of financial institution where people can quickly and without any problems get a relatively inexpensive cash loan. The number of shareholders of a credit union is limited and formalized by a list. Limit of the number is defined by the assembly and such assembly establishes the charter. Specialization of credit unions to provide financial services to its shareholders requires a particularly strict regulation of membership and acceptable activities. At the organization of the credit union it is important that people know each other and know the extent to which each of them is trustworthy. The main advantage of credit unions consists in transparency, controllability, governance for shareholders. 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). International cooperation has been particularly felt since the days when Alphonse Desjardins began the activity on development of credit union movement in North America. Shareholders in corporate organizations are basic credit unions, besides the same union can be a shareholder of several corporate organizations.