Companies
- Slam Games Ltd.
- Slang
- Slant Six Games
- Slavic Magic
- Sledgehammer Games
- Sleepy Giant Entertainment
- Slide
- Slightly Mad Studios
- Slingshot Cartel
- Slipgate Ironworks
- Slitherine Software UK
- Smack Down Productions
- Small Giant
- Small Jelly
- Smilegate
- Smilegate Entertainment
- Smilegate Europe
- Smoking Gun Interactive
- Smoking Gun Productions
- SN Systems
- Snail Game
- Snail Games
- Snap Finger Click
- Snapser
- Snapshot Games