| #18418 | Computer Phood | P |
| #17173 | Computer Post | S |
| #17174 | Computer Program Copyright Register | U |
| #17175 | Computer Programmers Club | U |
| #2739 | Computer Publications | Z |
| #2740 | Computer Rating Methods | Z |
| #2741 | Computer Rats Group | Z |
| #2742 | Computer Records | Z |
| #18303 | Computer Rentals Ltd | P |
| #17176 | Computer Repair Centre | R |
| #17177 | Computer Repairs UK | R |
| #2743 | Computer Services | Z |
| #17179 | Computer Software | A |
| #17180 | Computer Software Exchange | X |
| #2744 | Computer Tutor | P |
| #2745 | Computer Visions | Z |
| #2746 | Computer Wares | Z |
| #19539 | Computer Wargame Corporation | Z |
| #2747 | Computer Work Company | Z |
| #17182 | Computer Workshop | C |