 , Nisa Retail Limited supplies over 4,000 convenience shops and small supermarkets, including the Costcutter symbol group and CK Foodstores in Wales.According to Company Accounts submitted for year ending on 31 March 2014, Nisa Retail Limited has an estimated net worth of £30.77 million.Garvin had established NISA some years earlier as a means of fighting the larger supermarket chains of the time but had struggled with the format and future growth.