| #17151 | Compute-iT | A |
| #17152 | Computeach International | C |
| #17153 | Computec | A |
| #2724 | Computer | Z |
| #17154 | Computer & Electronics Education | B |
| #2725 | Computer & Software Centre | A |
| #17155 | Computer & Video Services | R |
| #2726 | Computer Add-ons | H |
| #2727 | Computer Adventure Studio | Z |
| #17156 | Computer Adventure World | S |
| #17157 | Computer Awareness Project | C |
| #2728 | Computer Cabin | A |
| #17159 | Computer Care | R |
| #2729 | Computer Cases & Covers | Z |
| #17160 | Computer Cavern | A |
| #17161 | Computer Centre | R |
| #17162 | Computer Classics | M |
| #2731 | Computer Club | Z |
| #17163 | Computer Club International | S |
| #20391 | Computer Club Roma-Talenti | U |