| ID | Name | Type |
|---|---|---|
| #16088 | Cathy Foot | + |
| #2292 | Cathy Hoar | + |
| #18820 | Catmeows | - |
| #22687 | Catra Software | P |
| #2293 | Catriona Glen | + |
| #2294 | Cav Inc | Z |
| #19974 | Cavern Games | P |
| #2295 | Cavern Software | Z |
| #19307 | Ce-Soft | P |
| #18901 | Cebrian | - |
| #2296 | Cecomsa | ? |
| #2297 | Cedic Nathan | + |
| #22641 | Cedric Quetier | + |
| #18089 | Celal Kandemiroglu | + |
| #2298 | Celerysoft | Z |
| #15798 | Celia Sims | + |
| #2299 | Celina Ltd | Z |
| #2300 | Celso Nores Jurado | ? |
| #2301 | Celtic Revision Software | Z |
| #2302 | Celtic Software | Z |