- Made By Kiddies
- Magnetic Scrolls
- Majesco Games
- Majorem
- Mandarin Software
- Marlin Games
- Mastertronic
- Matrix Games
- Mattel Interactive
- Mayhem Studios
- Med Systems Software
- Melbourne House
- Mental Images
- Metro 3D
- Metro Graphics
- MGM Interactive
- Micromega
- MicroProse
- Microsoft
- Micro Fun
- Midway Games Inc.
- MindArk AB
- Minds Eye Productions
- Miracle Designs
- Mirrorsoft
- Monkeystone Games
- Monolith
- Mosaic Publishing Ltd
- Mucky Foot Productions
- Mythic Entertainment
Also see:
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