where is that company located?
Salt Lake City, Utah.
Chair Entertainment
Chair Entertainment Group, LLC (stylized as ChAIR) is an American video game developer based in Salt Lake City, Utah. 
what is infinity blade? It is an action role-playing game. who developed it? Chair Entertainment and Epic Games. when was it released for the first time? December 9, 2010. can you name a few characters in this? Siris, Isa and the God King. on which devices can this be played on? iOS/Apple devices. what achievement did it receive after it was released? The fastest-grossing app. with reference to the first company mentioned who developed this game, can you name a few people working in that company? Donald Mustard, Geremy Mustard and Ryan Holmes.
wiki:10866391
Chair Entertainment [SEP] Introduction
Chair Entertainment Group, LLC (stylized as ChAIR) is an American video game developer based in Salt Lake City, Utah. The company was acquired by Epic Games in 2008.