Publishers 12,114
| Publisher | Games | Queer flag | Country |
|---|---|---|---|
| Marshman Games | 1 | -- | |
| Martell Cognac | 1 | -- | |
| Martian's Parlor | 1 | -- | |
| Martin Fritz | 1 | -- | |
| Marty.Games | 1 | -- | |
| Martínez Roca | 1 | -- | |
| Masbro | 1 | -- | |
| Masilow | 1 | -- | |
| Masked Republic | 1 | -- | |
| Masmania Games | 1 | -- | |
| Masquerade Games | 1 | -- | |
| Massif Games, LLC | 1 | -- | |
| Massive Cat Games | 1 | -- | |
| Massive Monster | 1 | -- | |
| Master Ion Sdn. Bhd. | 1 | -- | |
| Master Toy Co. | 1 | -- | |
| Masteray | 1 | -- | |
| Masteri misterije | 1 | -- | |
| Mastermind Toys | 1 | -- | |
| Masters of Mystery | 1 | -- | |
| Mathematikwettbewerb Känguru e.V. | 1 | -- | |
| Matrix Games | 1 | -- | |
| Matsui Gaming Machine | 1 | -- | |
| Mattel Electronics | 1 | -- | |
| Matter Group LLC | 1 | -- | |
| MattesNachhilfe | 1 | -- | |
| Mattie Games Inc. | 1 | -- | |
| Mauá | 1 | -- | |
| Max Dähnert & Söhne | 1 | -- | |
| Max Elb AG | 1 | -- | |
| Max Manga | 1 | -- | |
| Max Ploys | 1 | -- | |
| Maxco | 1 | -- | |
| Maxveld Games | 1 | -- | |
| May Fortis ApS | 1 | -- | |
| Maynard's | 1 | -- | |
| Mazas Edition | 1 | -- | |
| Mazaza Games | 1 | -- | |
| Maze Games | 1 | -- | |
| Mazeology | 1 | -- | |
| Mazy Machine | 1 | -- | |
| McCormick & Co | 1 | -- | |
| McDavitt Publishing | 1 | -- | |
| McEwan Miniatures | 1 | -- | |
| McGartlin Motorsport Design | 1 | -- | |
| McNutty Games | 1 | -- | |
| Meadowbrook Press | 1 | -- | |
| Mean Games | 1 | -- | |
| Mean Hyena Games | 1 | -- | |
| Mechanicx Games | 1 | -- |