| Greg Follis | Developer | |
| Greg Hassett | Developer | |
| Greg Karber | Developer | |
| Greg Klein | Developer | |
| Greg Kuperberg | Developer | |
| Greg Lobanov | Developer | |
| Greg Squire | Developer | |
| GregorSD | Developer | |
| Gregory Avery-Weir | Developer | |
| Gregory Blood | Developer | |
| Gregory Neale | Developer | |
| Gregory Weber | Developer | |
| GregoryGentilhomme | Developer | |
| GregularGames | Developer | |
| Grekaro06 | Developer | |
| Gremlin | DeveloperPublisher | |
| Gremlin Graphics | DeveloperPublisher | |
| Gremlin Graphics (Tony Porter, Kevin Bulmer, Ben Daglish) | Developer | |
| Gremlin Graphics (Tony Porter, Kevin Bulmer, Bill Allen, Ben Daglish) | Developer | |
| Gremlin Graphics Design | DeveloperPublisher | |
| Gremlin Graphics EU | Publisher | |
| Gremlin Graphics Software | DeveloperPublisher | |
| Gremlin GraphicsEU | Publisher | |
| Gremlin Industries | Publisher | |
| Gremlin Interactive | DeveloperPublisher | |
| Gremlin InteractivePAL | Publisher | |
| Gremlin Ireland | Developer | |
| Gremonation | Developer | |
| Grenaberry | Developer | |
| Grenadine | Developer | |
| Grendel Games | DeveloperPublisher | |
| Gretech | Developer | |
| Grey | Developer | |
| Grey Alien Games | Developer | |
| Grey Box | Publisher | |
| Grey Flag | Developer | |
| Grey Ghost Dev | Developer | |
| Grey M. | Developer | |
| Grey ✨ | Developer | |
| GreyCypher | Developer | |
| GreyStone | Publisher | |
| Greyhunter99 | Developer | |
| Greyman Studios | Developer | |
| Greynvi | Developer | |
| Greystone Games | Developer | |
| Greyt Games | Developer | |
| Grezzo | Developer | |
| Grhyll | Developer | |
| Griddolini | Developer | |
| Griffin Thenell | Developer | |