| ID | Name | Type |
|---|---|---|
| #4070 | Dylan Smith | + |
| #19000 | Dylan [Bearsden Primary 2019] | + |
| #4071 | Dymond Software | Z |
| #4072 | Dynamic | ? |
| #17238 | Dynamic Array | A |
| #17239 | Dynamic Developments | M |
| #4073 | Dynamic Software | Z |
| #4074 | Dynamite Designs | Z |
| #4075 | Dynamite Duo | Z |
| #4076 | Dynamite Dynasty | ? |
| #17240 | Dynamite Software | S |
| #4077 | Dynamix | Z |
| #4078 | Dynavision | ? |
| #16696 | Dyneer | ? |
| #4079 | Dyrekcja Szkolenia Ekonomicznego PTE | Z |
| #4080 | Dziubanek Software | Z |
| #4081 | E Arthur Brown Company | Z |
| #20326 | E Smith Software | P |
| #17241 | E&E Enterprises | A |
| #4082 | E&J Software | Z |