Ninja Theory, Ltd. is a video game developer based in Cambridge, England. Originally founded as Just Add Monsters in March 2000, the company was purchased by former Argonaut Games CEO Jez San in late 2004. The team developed its first game, Kung Fu Chaos, in 2003 exclusively for the Xbox, which was published by Microsoft Game Studios.
Ninja Theory's most recent title, Heavenly Sword for the Sony PlayStation 3 was released in September 2007 and features a "free style" combat action system. The developer was nominated for five Develop Industry Excellence Awards for the game including best new IP, visual arts, audio accomplishment, technical innovation, and best independent developer.
Source: Wikipedia, "Ninja Theory," available under the CC-BY-SA License.