Corporate credit unions are united on a cooperative basis in the Central Credit Union (US Central Credit Union). 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. Credit union is created by a group of members who pursue a common interest. Agreeing to make regular contributions, they create a fund from which can borrow money for investments and replenishment of working capital at favorable interest rates. When organizing the credit union it is important that people know each other and know the extent to which each of them is trustworthy. Cooperation between credit unions, how they would not have been named, took place always, from the moment when the movement moved outside one credit union. The main advantage of credit unions consists in transparency, controllability, governance for shareholders. Over 30% of the assets of credit unions are investments in government securities, certificates of deposit of banks and savings loan associations, as well as in the parent credit unions, and other risk-free investments. Credit Union - a non-profit financial institution specialized in mutual financial assistance by providing savings and credit services to their members.