Headquartered in Wilmington, Delaware, the U.S. credit card operations of Barclays PLC, Barclays Bank Delaware, is one of the fastest growing credit card issuers in the United States. Barclays has more than 40 existing card partnerships with some of the most successful travel, entertainment, automotive, educational and financial institutions in the United States including US Airways, AirTran Airways, Frontier Airlines, Midwest Airlines, Carnival Cruise Lines, TiVo, Gulf Oil, Harvard Alumni Association, and UBS among others.