Credit unions also differ from the traditional consumer cooperatives. The uniqueness of credit unions is that they put together the principles and benefits of financial cooperatives, consumer cooperatives and mutual aid funds, born once by trade unions. 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. The relationship of shareholders with credit union are not client-based, they are co-operative, based on different principles and standards, in particular, on the principles of the law of obligations. Corporate alliances are intermediaries between credit unions and financial markets.