TransUnion is a credit company that provides credit-related information to potential creditors. It is considered to be the third largest credit bureau after Equifax and Experian in the United States. Like its competitors, the company offers credit reports directly to customers. The company was established in 1968 by the other company called Union Tank Car Company which acted as a holding company owned and operated by Jay Pritzker and Robert Pritzker. TransUnion operates not only 250 offices located on the territory of the U.S. but also collaborates with over 50,000 customers in 25 countries. The headquarters are located in Chicago, Illinois. Please try to contact TransUnion Customer Service directly prior to posting any complaints on this site.