| ID | Name | Type |
|---|---|---|
| #21140 | Cheyenne Advanced Systems | H |
| #2387 | Chez Watts | ? |
| #2388 | Chezron Software | Z |
| #19563 | Chi-Soft | Z |
| #2389 | Chi-Yeung Choy | ? |
| #2390 | Chibur | P |
| #17135 | Chic | U |
| #21856 | Chic James | + |
| #2391 | ChildWare Corporation | Z |
| #2392 | Childrens Infatuated Computers | Z |
| #2393 | Childsplay Software | Z |
| #17136 | Chiltern Computer Service | R |
| #2394 | Chin | ? |
| #20051 | Chin Osborne | + |
| #2395 | Chinny | ? |
| #2396 | Chip | ? |
| #2397 | Chip & Rokky | ? |
| #2398 | Chip 'n Dale | ? |
| #21639 | Chip Electronic & Computers | P |
| #2399 | Chip-Special | ? |