| ID | Name | Type |
|---|---|---|
| #19596 | Christopher Roper | + |
| #2520 | Christopher Schenk | + |
| #2521 | Christopher Smith | + |
| #21430 | Christopher Sully | + |
| #2522 | Christopher Ward | + |
| #2523 | Christor Buening | + |
| #18570 | Christos Achilleos | + |
| #2524 | Chromagraphica | ? |
| #2525 | Chromasoft | Z |
| #2526 | Chrysagon | ? |
| #16009 | Chrysalis | ? |
| #2527 | Cht666cht | ? |
| #18636 | Chuan-Tze Teo | + |
| #18671 | Chuck Benton | + |
| #2528 | Chuck Hopper | + |
| #2529 | Chuck Yeager | - |
| #21831 | Chukasoft Productions | Z |
| #2530 | Church Army | Z |
| #2531 | Church Army Resource Centre | Z |
| #19535 | Church of Scotland Education Software | P |