| Name | Types | |
|---|---|---|
| D3 Publisher | DeveloperPublisher | |
| D3 Publisher of America | Publisher | |
| D3 PublisherJP | Publisher | |
| D3 PublisherJP,KO | Publisher | |
| D3JP | Publisher | |
| D3Publisher | DeveloperPublisher | |
| D3PublisherJP | Publisher | |
| D3T | Developer | |
| D3fCHiLD | Developer | |
| D3nX | Developer | |
| D4NDY_0 | Developer | |
| D4ngus1 | Developer | |
| D4rkD | Developer | |
| D4yz | Developer | |
| D5R | Developer | |
| D6 Entertainment BR | Developer | |
| D6 Games | Developer | |
| D7 Studios | Developer | |
| DA Studios.inc | Developer | |
| DAC Games | Developer | |
| DADIU | Developer | |
| DADO | Developer | |
| DAE Studios | Developer | |
| DAFF0111 | Developer | |
| DAGrommesh | Developer | |
| DAKU | Developer | |
| DAKÍCORP | Developer | |
| DAMAN | Developer | |
| DANDELIONGAMES | Developer | |
| DANG! | Developer | |
| DANGEN Entertainment | Publisher | |
| DANGER HEART ENTERTAINMENT | Developer | |
| DARK SANDWICH | Developer | |
| DAT.NOT.MY.GAME! | Developer | |
| DATURA HELVEDE | Developer | |
| DAYDEV | Developer | |
| DAYDREAM STUDIO | Developer | |
| DAZEL | Developer | |
| DAmieba | Developer | |
| DB Attic Studios, LLC | Developer | |
| DC Assets UY | Developer | |
| DC Comics | Publisher | |
| DC Studios | DeveloperPublisher | |
| DC True | DeveloperPublisher | |
| DCE | Developer | |
| DCF Studios | DeveloperPublisher | |
| DCP | Developer | |
| DCUGameDev | Developer | |
| DD Studios | Developer | |
| DDB | Developer |