Updated RTP Game Companies
Stolen from the Triangle Chapter of IGDA. (I hope my version is easier to read!)
-  3Dsolve (Lockheed Martin) 
 -  Applied Research Associates 
 -  cdv Software Entertainment 
 -  ClearImage 
 -  Destineer Studios 
 -  DigiRonin Games 
 -  Electronic Arts 
 -  Emergent Game Technologies 
 -  Epic Games 
 -  Funcom 
 -  Icarus Studios 
 -  iEntertainment Network 
 -  Insomniac Games 
 -  GLIPS Entertainment 
 -  Media Sunshine 
 -  Merscom 
 -  Mid Carolina Media 
 -  NVIDIA 
 -  OC3 Entertainment 
 -  Octagon Entertainment 
 -  Psyonix Studios 
 -  Red Storm Entertainment 
 -  Republic of Fun 
 -  RTI
 -  Shrapnel Games 
 -  Themis Group   
 -  United Minds Games 
 -  Vicious Cycle Software  
 -  Virtual Heroes 
 -  Vision Studios 
 - XLOC
 
Also for those interested in how to get others to work for free watch this WIRED video.
