Companies
- SIE Japan Studio
- Sierra Entertainment
- Silicon Knights
- Simogo
- Skybound
- Skydance New Media
- Skyhook Games
- Slavic Magic
- Sledgehammer Games
- Sleepy Giant Entertainment
- Slightly Mad Studios
- Slipgate Ironworks
- Slitherine Software UK
- Sloclap
- small impact games
- Smartly Dressed Games
- Smilegate
- Snail Games USA
- Snakebyte
- SNK
- softbank
- Sold Out
- Sonic Team
- Sony
- Sony Bend