| ID | Name | Type |
|---|---|---|
| #3609 | DavidCM | ? |
| #19354 | Davide Bucci | + |
| #3610 | Davide M. | ? |
| #16518 | Davidian | - |
| #3611 | Davis Publications Inc | Z |
| #3612 | Davit Masia Coscollar | ? |
| #3613 | Davor Bonacic | + |
| #3614 | Davor Magdic | + |
| #3615 | Davos | ? |
| #3616 | Dawn Drake | + |
| #3617 | Dawn Jones | + |
| #3618 | Day | ? |
| #19826 | Daz Peet | - |
| #16561 | Dazman | + |
| #3619 | De Barron Software Ltd | Z |
| #3620 | De Muiderkring B.V. | ? |
| #3621 | De Stier ZX81 Programma | ? |
| #3622 | De Wit Productions Ltd | Z |
| #22667 | DeMOSic | + |
| #3623 | DeNeR | ? |