| ID | Name | Type |
|---|---|---|
| #14040 | Studio Computerowe Koala | Z |
| #14041 | Studio Stall | Z |
| #14042 | Stuffduck Software | Z |
| #14043 | StupidiuS | ? |
| #20079 | Stusoft | Z |
| #14044 | Stuttard | ? |
| #14045 | Style Group | Z |
| #14046 | Style Soft | Z |
| #14047 | Styles | ? |
| #20376 | Stéphane Derisbourg | + |
| #20514 | Stéphane Meunier | + |
| #20602 | Stéphane Vallois | + |
| #14048 | Subbuteo Sports Games Ltd | Z |
| #14049 | Subway Software | Z |
| #14050 | Succes Software | Z |
| #14051 | Success Ltd | Z |
| #14052 | Success Services | Z |
| #14053 | Sue Beasley | + |
| #16415 | Sue Denham | + |
| #19532 | Sue Gazzard | + |