Mike Thompson's seven stores in the Newcastle area, five of which were trading as Costcutter will adopt the Nisa branding, with his Gosforth store being the 300th in the country to receive the Nisa Store of the Future fascia.
Mike said: "The move to Nisa was purely a commercial decision. I felt they were able to help my business to progress within the competitive market place. The store conversions are making a significant difference to our business and will allow for a more pleasurable shopping experience for customers."
Nisa symbol group director John Heagney added: "Attracting high-quality retailers such as Mike to the Nisa Symbol Group is testament to the strength of our package."
Nisa aims to have 1,000 symbol group stores by 2012. Last month Costcutter's Nick Ivel said it was "unacceptable" that Nisa-Today's was developing its own symbol group "to compete directly with non-symbol members" such as RedOrange.
Nisa-Today's boss Neil Turton responded by describing Costcutter's announcement of the RedOrange deal as "truimphalist and unhelpful."