Some credit unions are closed, serving only their members. However, the more and more popularitywin cooperatives of open type. Like the credit cooperatives, credit unions form associations of a higher level, which are called corporate credit unions. When organizing the credit union it is important that people know each other and know the extent to which each of them is trustworthy. Until the mid-XX century, credit unions in the United States had little assets that did not exceed, as a rule, 100 thousand dollars Credit Union - a non-profit financial institution specialized in mutual financial assistance by providing savings and credit services to their members. Credit unions historically formed as a special form of social support, initially taken upon themselves the social mission of protecting the interests of citizens in the field of financial services.