| Groups (developers) | Abbr. | Country | City | Rating | |
|---|---|---|---|---|---|
| Mini-Max Soft | 0.00 ±0.0 | ||||
| Miracle Software Group | 0.00 ±0.0 | ||||
| Mirage Software Limited | 0.00 ±0.0 | ||||
| MLA | 0.00 ±0.0 | ||||
| MMG Micro Software | 0.00 ±0.0 | ||||
| MNX | Netherlands | 0.00 ±0.0 | |||
| Moses Engineering | 0.00 ±0.0 | ||||
| MPG Productions | 0.00 ±0.0 | ||||
| Mr. Chip Software | 0.00 ±0.0 | ||||
| MS SOFT | 0.00 ±0.0 | ||||
| Muelleimersoft | 0.00 ±0.0 | ||||
| Munich Atari XL/XE PD-Association | Germany | Munchen (München) | 0.00 ±0.0 | ||
| Munroe Software | 0.00 ±0.0 | ||||
| Mysterious Association Of Devils | 0.00 ±0.0 | ||||
| Mystic Bytes | Poland | Poznan (Poznań) | 0.00 ±0.0 | ||
| The Martens Team | 0.00 ±0.0 | ||||
| The Morons of H.A.R. | Germany | 0.00 ±0.0 |
