| ID | Name | Type |
|---|---|---|
| #11753 | Quen Data Business Machines | Z |
| #11754 | Quentin Deane | + |
| #16352 | Quentin Heath | ? |
| #11755 | Quentin Ludwig | + |
| #11756 | Quest Microsoftware | P |
| #11757 | Questsoft | Z |
| #11758 | Quickbeam Software | Z |
| #21560 | Quickly | P |
| #17643 | Quickmicro | M |
| #21559 | Quicksilva Inc. | P |
| #11759 | Quicksilva Ltd | P |
| #18506 | Quiet | + |
| #11760 | Quim Soft | Z |
| #11761 | Quinstertronic | ? |
| #18193 | Quique "Cascarria" Llaria | + |
| #11762 | Quixel | Z |
| #19556 | Quizlock | P |
| #21808 | Qumi Team | P |
| #22032 | R Entwistle | + |
| #11763 | R Kamer | ? |