Overview:Abbey National plc is the 6th biggest UK bank with 705 branches under the Abbey brand. It also uses the Cahoot and since September 2008, the Bradford and Bingley savings brands. Subsidiary banks include Cater Allen Limited. Since 2004 Abbey has been part of the Santander group. Santander is the largest Eurozone Financial Services company. Recent Santander acquisitions include UK Bank Alliance and Leicester.