| Matrix
| http://www.matrixgames.com
|
| Matinee Sound and Vision
| http://www.matinee.co.uk/
|
| Mathilda
|
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| Mathematiques Appliquees S. A.
| http://www.animaths.com/
|
| Matchbox Toys
| http://www.matchbox.com
|
| Matahari Studios
| http://www.mataharistudios.com
|
| Masudaya Corp.
|
|
| Mastiff
|
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| Mastertronic
|
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| Masterpiece
|
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| Master Creating
|
|
| Massive Development
| http://www.massive.de
|
| Mass Media
| http://www.massmedia.com
|
| Masque
|
|
| Mascot Capsule
|
|
| Masaya
|
|
| MASA Group
|
|
| Marvelous Entertainment
|
|
| Marvel Enterprises, Inc.
| http://www.marvel.com
|
| Marucome
|
|
| Marubeni
|
|
| Marry Bell
| http://www.pixpc.net/
|
| Marionette
|
|
| Marine Heart
| http://www.aquahouse.co.jp/marine/
|
| Marigul Management, Inc.
| http://www.marigul.co.jp/
|
| Marble
|
|
| Map Japan
|
|
| Manu Pärssinen
| http://www.pelikonepeijoonit.net/
|
| Manning
|
|
| Manley Associates Inc.
|
|
| Manley & Associates
|
|
| Mandigo
|
|
| Mana Comp
|
|
| Malibu Interactive
|
|
| Malibu
|
|
| Malfador Machinations
|
|
| Make Software
|
|
| Major A
|
|
| Majesco Inc.
| http://www.majescosales.com
|
| Majecso Inc.
|
|
| Mainichi
|
|
| Maika
| http://www.media-box.ne.jp/
|
| Mahou
| http://www.mahou.co.jp
|
| Magnolia
|
|
| Magnin and Associates
| http://www.edmagnin.com/
|
| Magnet Interactive
|
|
| Magnavox
| http://www.magnavox.com
|
| MAGIX Entertainment
| http://www.magix.net
|
| Magifact
|
|
| Magical Company
|
|