Companies
- Max
- Maxis
- Maze Theory
- McDonald's
- MDHR
- Mechanistry
- Media Molecule
- Mediatonic
- MegaCat Studios
- Mercat Games
- Mercury Steam Entertainment
- Meridian4
- Meta
- Metanet Software
- Meteor Entertainment
- Microids
- Microprose
- Microsoft
- Microsoft Studios
- Midas Interactive Entertainment
- Midnight City
- Midnight Society
- Midway
- MiHoYo Limited
- Milestone