Companies
- North Beach Games
- Nosebleed Interactive
- Novadust Entertainment
- Novarama
- NPD Group
- Number None
- Numskull
- Numskull Games
- Nuverse
- Nvidia
- NZXT
- O~3 Entertainment
- Obsidian Entertainment
- Oculus
- Oculus VR
- Odd Bug Studio
- Odd Meter
- Oddworld Inhabitants
- Ofcom
- Offworld Industries
- Okomotive
- Omega Force
- OneMoreLevel
- OnLive
- Oovee Games Studio