| Name | Types | |
|---|---|---|
| MERJ Media | DeveloperPublisher | |
| MESSENGER | Developer | |
| META FOOL | Developer | |
| META Publishing | Publisher | |
| MEYOUMEYOU | Developer | |
| MEZZANINE | Developer | |
| MFatihMAR | Developer | |
| MG BEATZ | Developer | |
| MG Games | Developer | |
| MGAME Corp. | Developer | |
| MGC_Vlad | Developer | |
| MGFM | Developer | |
| MGI | Developer | |
| MGM Interactive | Publisher | |
| MGM Interactive, MGM | Publisher | |
| MGMasterco | Developer | |
| MGP Studios | Developer | |
| MGZone | Developer | |
| MGaia | Developer | |
| MGame Corporation | DeveloperPublisher | |
| MGibson | Developer | |
| MHP indie labs | Developer | |
| MHT Ingenieros | Publisher | |
| MIA | DeveloperPublisher | |
| MIC | DeveloperPublisher | |
| MICHE22 | Developer | |
| MICROS | Developer | |
| MIDI Vagrant | Developer | |
| MIDREKY | Developer | |
| MIG Entertainment | Publisher | |
| MIND MultiMedia | Developer | |
| MINIGOLIATH | Developer | |
| MISSING | Developer | |
| MIYAKOpubl | Developer | |
| MIchael Cinquegrano | Developer | |
| MJ | Developer | |
| MJ Child | Developer | |
| MJSama | Developer | |
| MK Smith | Developer | |
| MK Studios | Developer | |
| MK-ACT | Developer | |
| MKRTG | Developer | |
| MKRaw | Developer | |
| MLB | Developer | |
| MLB Advanced Media | DeveloperPublisher | |
| MLB.com | DeveloperPublisher | |
| MLBAM | Developer | |
| MLammF | Developer | |
| MLindblad | Developer | |
| MLoreley | Developer |