id Software
The creators of high-quality video games such as DooM, Quake, Wolfenstein, and several others. It's based somewhere near Mesquite, Texas. In short, id Software is one of the best (if not the best) game companies in the world.
Id--in Freudian theology, it is the primal part of the human psyche. Id Software--"one of the hottest game shops on Earth."