When organizing the credit union it is important that people know each other and know the extent to which each of them is trustworthy. Among the U.S. credit unions, there are three groups that differ in terms of assets, shareholders, and business services. Credit unions appeared in England in the 19th century. In 1844 a group of workers from Rochdale established the first cooperative. 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. 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.