| ID | Name | Type |
|---|---|---|
| #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 |
| #2303 | Celulosa Fabril S.A. | Z |
| #2304 | Celyn Jones Software | Z |
| #16693 | Censcot | ? |
| #2305 | Centas | Z |
| #2306 | Centaurisoft | Z |
| #2307 | Central Electronics | Z |
| #2308 | Central Independent Television PLC | Z |
| #2309 | Central Solutions | P |
| #2310 | Central Television | Z |
| #17131 | Centralised Services | R |