| Dynabyte | DeveloperPublisher | |
| Dynafield | Developer | |
| Dynafield Systems | Developer | |
| Dynamic Media Triad | Developer | |
| Dynamic Pixels | Developer | |
| Dynamic Planning | Developer | |
| Dynamic Production | DeveloperPublisher | |
| Dynamic Soul Works | Developer | |
| Dynamic Voltage Games | DeveloperPublisher | |
| Dynamic zero | Developer | |
| DynamicDonut | Developer | |
| Dynamighty | Developer | |
| Dynamite | Developer | |
| Dynamite Designs | Publisher | |
| DynamiteWhale | Developer | |
| Dynamix | DeveloperPublisher | |
| Dynamo | Developer | |
| Dynasoft | Publisher | |
| Dynax | Publisher | |
| DyneWulf | Developer | |
| Dynetron Company | Publisher | |
| DynoStorm | Developer | |
| Dyoxyne | Developer | |
| Dystopia Interactive | DeveloperPublisher | |
| Dyzzyd | Developer | |
| Dzhon | Developer | |
| Dziek | Developer | |
| Dziff | Developer | |
| Dámhín (Daw-Veen) | Developer | |
| Dóczi Dominik | Developer | |
| E Bros Entertainment | Developer | |
| E Games | Developer | |
| E&J Software | Publisher | |
| E's | Developer | |
| E-Frontier | Publisher | |
| E-Game Inc. | Developer | |
| E-Games | Publisher | |
| E-Home Entertainment | DeveloperPublisher | |
| E-Home Entertainment Development | Publisher | |
| E-Line Media | DeveloperPublisher | |
| E-Magination | Developer | |
| E-Regular Games | DeveloperPublisher | |
| E-SOF Games | Developer | |
| E-Samu | Developer | |
| E-Scape EnterMedia | Publisher | |
| E-Studio | Developer | |
| E-Z Computing | Publisher | |
| E-a-R | Developer | |
| E. server | Developer | |
| E.E-Wick | Developer | |