Companies
- Nintendo of America
- Nintendo of Europe
- Nixxes Software B.V.
- No More Robots
- Nokia
- Nordisk Games
- North Beach Games
- Nosebleed Interactive
- Number None
- Nvidia
- Oberon Media
- Obsidian Entertainment
- Omega Force
- one2tribe
- OneMoreLevel
- OnLive
- Onoma
- OverBorder Studio
- Overkill Software
- Pandemic Studios
- Parabole
- Paradox Interactive
- Paramount Pictures
- perfect world
- Peter Games