Companies
- WarChest
- Warhorse Studios
- Warner Bros.
- Warner Bros. Games
- Warner Bros. Games Montreal
- WayForward Technologies
- WD
- Widescreen Games
- Wired Productions
- Wizards of the Coast
- WolfEye Studios
- Xbox Game Studios
- XD
- XSEED Games
- Yippee Entertainment
- Young Horses, Inc.
- Ys Net
- Yuke's
- ZeniMax Media
- ZeniMax Online Studios