Massimo Cellini | Master Computer | Máster Graph gráfica e editora Ltda | Master's Software House |
Mastertronic
|
Matra Scene Group/Person | Matsushita Communication Industrial |
Matsushita Electric Industrial
|
Mattel | Maubert Electronic | Mauro Marinilli Scene Group/Person | Max system |
MaxByte | Maxis | May-Be SOFT | Mayhem Scene Group/Person |
Mazsoft Scene Group/Person | MBI Publications |
MC Lothlorien
|
MCA |
MCCA Scene Group/Person | MCFN Scene Group/Person | McGraw-Hill | MCM Software |
MCR Services | MCWF / MVM Scene Group/Person | Meari | Mediax |
Medo | Mega MSX Scene Group/Person |
MegaCom
|
MEgaCyCAL |