Companies
- GRIN
- Grinding Gear Games
- Griptonite Games
- Groove Games
- Ground Shatter
- GSC
- GSC Game World
- Guerrilla Games
- Gugames
- gumi
- Gun Media
- Gunfire Games
- GungHo Online Entertainment Inc.
- Gunzilla Games
- Hadoque
- Haemimont Games
- HAL Laboratory
- Half Mermaid
- Hands-On Mobile
- Hangar 13
- Happy Volcano
- Hardball Games
- Hardsuit Labs
- Harebrained Schemes
- Harmonix