Companies
- S-Game
- Saber Interactive
- Sabotage Studio
- Samsung Electronics
- Sandfall Interactive
- Santa Monica Studio
- Sanzaru Games
- Savage Entertainment
- Savage Game Studios
- SCE Japan Studio
- SCEE London
- Scopely
- Seagate
- Second Dinner
- Secret Mode
- Secretlab
- SEGA
- SEGA Australia
- SEGA Corporation
- SEGA Europe
- SEGA Japan
- SEGA of America
- SEGA Sammy Holdings
- Serenity Forge
- Shared Memory