| ID | Name | Type |
|---|---|---|
| #2597 | Clive Paul | + |
| #2598 | Clive Prigmore | + |
| #2599 | Clive Roberts | + |
| #2600 | Clive Sinclair | + |
| #2601 | Clive Smith | + |
| #2602 | Clive Thomas | + |
| #2603 | Clive Thompson | + |
| #21432 | Clive Tietjen | + |
| #2604 | Clive Townsend | + |
| #2605 | Clive Wilson | + |
| #2606 | Clizio Merli | ? |
| #2607 | Clockbyte | ? |
| #2608 | Clockwize Software Developments | Z |
| #23185 | Clockwork Robot | P |
| #2609 | Cloud 10 Software | Z |
| #2610 | Cloud 9 Software | Z |
| #2611 | Cloud Soft | Z |
| #2612 | Cloue | ? |
| #2613 | Clover Services | Z |
| #2614 | Clovis L. Tondo | ? |