Corporate credit unions are united on a cooperative basis in the Central Credit Union (US Central Credit Union). Is necessary that all shareholders of the credit union were members of a single community, would know each other well enough to enjoy mutual trust. Until the 70's there was a proliferation of the U.S. credit unions due to the increase of their number and the number of shareholders, although it must be acknowledged that there was also and a qualitative growth. Until the mid-XX century, credit unions in the United States had little assets that did not exceed, as a rule, 100 thousand dollars Contributions from of shareholders in credit unions in no way can be considered as borrowed funds, they come from the shareholders and for the shareholders and can not be used to provide services to third parties. Credit unions encourage the proper use of shareholders savings, developing social programs (education, health, recreation, housing, etc.). Credit Union - one of the most attractive financial institutions for the public being a non-profit alternative to banks.