Infinity Ward is a development studio based in the USA and founded by Grant Collier in 2001. The company has exclusively worked on the Call of Duty series - a line of warfare games. A part of the development team was originally responsible for the Medal of Honor series. Initially focused on PC titles, the series branched out to consoles with the release of Call of Duty 2 for the Xbox 360 in 2005.
The studio is owned by Activision. In 2002 it acquired a 30% equity, and the remaining 70% was acquired in 2003.