| ID | Name | Type |
|---|---|---|
| #2336 | Chalksoft Ltd | P |
| #2337 | Challenge Research Ltd | Z |
| #2338 | Challenge Software | P |
| #2339 | Chameleon Computer Games | P |
| #2340 | Chameleon Computers Ltd | Z |
| #2341 | Channel 4 Television | Z |
| #2342 | Channel 8 Software | P |
| #2343 | Chaotic Soft | Z |
| #2344 | Chapete | ? |
| #2345 | Chapman and Beckingham Software | Z |
| #2347 | Charles A. Barron | + |
| #2346 | Charles A. Sharp | + |
| #16089 | Charles Barnatt | + |
| #15799 | Charles Bissel | + |
| #2348 | Charles Bodycote | + |
| #2349 | Charles Bystram | + |
| #2350 | Charles Cecil | + |
| #16090 | Charles Christian | + |
| #2351 | Charles Davies | + |
| #2352 | Charles Dear | + |