Trans Union is based in Chicago, Illinois, and is one of the three national credit bureaus, or consumer reporting agencies, in the United States. It currently handles data on approximately 160 million consumers. As a consumer reporting agency, Trans Union receives detailed credit information about millions of American consumers from numerous credit grantors including banks, mortgage companies, credit unions, auto dealers and others. Trans Union compiles this information into consumer reports and sells the reports to credit grantor... read full review »