Companies
- Wizards of the Coast
- Wizards of the Coast Digital Games Studio
- WolfEye Studios
- Wolfire Games
- World's Edge
- Worlds Untold
- X (formerly Twitter)
- Xbox Game Studios
- XD
- XSEED Games
- Yacht Club Games
- YAGER Development
- YouTube
- YoYo Games
- Ysbryd Games
- Yuke's
- Yukikaze
- ZA/UM
- Zen Studios
- ZeniMax Media
- ZeniMax Online Studios
- zoink games
- Zoink! Games
- Zoo Digital
- Zynga