Companies
- gumi
- gumi Canada
- Gunfire Games
- GungHo Online Entertainment America
- GungHo Online Entertainment Inc.
- Gunjin Games Ltd
- Gust Co.
- Gusto Games
- HAL Laboratory
- Halfbrick Studios
- Hammer & Chisel
- Hanbit Soft
- Hands-On Mobile
- Hangar 13
- Hansoft AB
- Happion Labs
- Harbottle & Lewis
- Hardsuit Labs
- Harebrained Schemes
- Harmonix
- Harmonix Music Systems
- Hasbro
- Hatch Entertainment
- Haven Studios LLC
- Havok