| ID | Name | Type |
|---|---|---|
| #22890 | Doorstein | + |
| #3934 | Dorcas Software | Z |
| #3935 | Dorde Senicic | + |
| #3936 | Doreen Bardon | + |
| #16142 | Doreen Naylor | + |
| #3937 | Doric Computer Services | Z |
| #3938 | Dorling Kindersley Ltd | Z |
| #3939 | Dorling Kindersley Software | P |
| #3940 | Dorling Kindersley [DE] | Z |
| #3941 | Dorling Kindersley [ES] | Z |
| #3942 | Dorling Kindersley [FR] | Z |
| #21183 | Dorling Kindersley [GR] | Z |
| #3943 | Dorling Kindersley [IT] | Z |
| #3944 | Dorling Kindersley [NL] | Z |
| #3945 | Dorling Kindersley [TR] | Z |
| #3946 | Dorothy Millard | + |
| #3947 | Dorsch - Elektronic | Z |
| #3948 | Dortec | ? |
| #21620 | Dot Cotton | + |
| #21291 | Dotz Games | P |