Stoke Mandeville set up the separate, independently-led Speaking Out investigation last year and said its inquiry was "serious and complex".

BBC: Jimmy Savile scandal: Stoke Mandeville inquiry continues

Last month 49, 000 consumers self-selected among 598 brands in 83 diverse categories in which they are customers, and assessed brands based on an independently-validated technique that fuses rational and emotional aspects of the categories, using a combination of psychological inquiry and higher-order statistical analyses.

FORBES: Customer Loyalty Engagement Index 2012 Commandment: Delight Thy Customer