Tesco
Introduced RFID inside its warehouses in 2002 and began putting the technology in shelves inside stores this past summer.
Marks & Spencer
Began using RFID inside its warehouses in 2002. Currently planning an item-level pilot.
Metro AG
Opened a store in Rheinberg, Germany, in April 2003, that uses RFID technology as its IT backbone. Intended to represent the future of retailing and to test new technologies under retail conditions.
Wal-Mart
Plans to have RFID readers in all of its distribution centers and more than 2,900 stores by January 2005.