| ID | Name | Type |
|---|---|---|
| #2886 | Crystal Dream | Z |
| #2887 | Crystal New Media | Z |
| #2888 | Crysys | Z |
| #2889 | Csaba Gondos | ? |
| #2890 | Csucstechnika | Z |
| #19519 | Cthonian Godkiller | - |
| #2891 | Cuarta Edicion | Z |
| #2892 | Cube Libre | ? |
| #2893 | Cult Games | P |
| #2894 | Culture Beat | ? |
| #2895 | Cumana Ltd | Z |
| #20934 | Cunha Ramos | + |
| #2896 | Cupre | ? |
| #2897 | Currah Computer Components Ltd | P |
| #2898 | Curridori Fausto | ? |
| #2899 | Currys | A |
| #2900 | Cursor | ? |
| #17200 | Curtis Computer Services | S |
| #2901 | Curtis Jacobs Software Design Ltd | Z |
| #2902 | Custom Cables International Ltd | Z |