Naughty Dog
Why because they made the best games I've ever played. Also because they are ambitious and optimalisation is something different with naughty dog. Besides not a single company I know brought storytelling in such a great way to gaming as ND did, TLOU being the mature pinacle and UC2 being the best adventure storytelling.
Sony Santa Monica for the God of War franchise. Which put the hack and slash genre to the table and inspired many good games like darksiders.
Nintendo EAD for the best 3d platformers ever made and Zelda. I dislike Nintendo's hardware division and management though.
Sony
For being the best console maker out there bringing a very diverse gaming library to their consoles. With third partie support at it's finest what is not to love except for their threatment of the Vita. Besides there aren't that many SP focussing studio's out there Sony fills the gap nicely in this multiplayer focused age.
Please excuse my (probally) poor grammar
