| ID | Name | Type |
|---|---|---|
| #21301 | Madsen Electronic | P |
| #19297 | Mael | P |
| #8908 | Maelstrom Games Ltd | Z |
| #8909 | Mafia Corporation | Z |
| #8910 | Mafia P.C. | ? |
| #17453 | Mag Components (Mag Computers) | R |
| #8911 | Magenta Electronics Ltd | Z |
| #18055 | Maggisoft | Z |
| #8912 | Magic Bytes | Z |
| #8913 | Magic Hand | Z |
| #8914 | Magic Moon | Z |
| #8915 | Magic Post Box | Z |
| #8916 | Magic Realm Games | Z |
| #8917 | Magic Soft | Z |
| #20407 | Magic Soft [2] | P |
| #8918 | Magic Software | Z |
| #8919 | Magic Team | Z |
| #22131 | MagicC | + |
| #8920 | MagicMaster Software | Z |
| #19526 | Magical World | P |