The Co-op appointed the Leamington Spa-based consultancy in the past week, following a pitch against six other groups.
Summersault will create two different versions of Us, aimed at its retail and non-retail staff respectively. Together, the magazine will reach 100 000 people.
‘What made Summersault stand out was its creativity, track record and understanding of the important role design plays in helping to communicate all manner of messages to our staff,’ says Co-operative senior communications manager Robert Cohen.
Summersault’s managing director Gail Frank says she hopes to deliver a ‘groundbreaking product which will help drive the business forward’.