Today in the UK there are about 700 credit unions with assets exceeding 200 million pounds. 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. When organizing the credit union it is important that people know each other and know the extent to which each of them is trustworthy. Credit union promotes the effective conservation of personal funds of its members, giving them the loans from the funds of the credit union, as well as the sharing of savings in education, housing, health care and other programs of social support and social development of its members. Credit unions perform the function of social protection in a vital for people sphere of financial services. They care about improving the financial literacy of the population, are working on the formation of their members and their employees. International cooperation has been particularly felt since the days when Alphonse Desjardins began the activity on development of credit union movement in North America. Until the mid-XX century, credit unions in the United States had little assets that did not exceed, as a rule, 100 thousand dollars Shareholders in corporate organizations are basic credit unions, besides the same union can be a shareholder of several corporate organizations. A potential new member of a credit union must submit a recommendation of shareholders in which the referee becomes a warrant of a future member of the credit union.