Established in 1999, GameStop is the one of the largest video game and entertainment software retailers worldwide. Based in Nogales, Ariz., the company operates more than 6,500 retail stores across the world as well as GameStop.com and EBgames.com. It offers software, hardware and gaming platforms as well as game accessories, such as Xbox 360, Sony PSP and Playstation. Game Informer magazine, a multi-platform video game publication, is a part of GameStop. The retail chain is ranked 255 on the Fortune 500 annual listing of public companies.