How HPI contributed. Via an extensive programme of qualitative and quantitative research, we provided crucial guidance for Santander's fully-fledged entry into the UK marketplace. Our research was central to key decisions in the rebranding process, including the final decision on brand name within the UK, the speed of the migration, the mode of announcement and the core brand proposition. The research united together qualitative and quantitative methods in a flexible and responsive programme, adapting to client priorities at short notice, and generating guidance through close collaboration with the Santander brand team in the UK.