Group
- MistWall Studio1
- Mithrilpunk Press7
- Mixed Six Podcast1
- Mockingbird / Mick McVey1
- Mockingbird/Dan Dearer3
- Mockingbird/John O'Byrne2
- Mockingbird/Mic McVey2
- Mockingbird/Mick McVey5
- Mockman Games2
- Modern Artifice12
- Modiphius16
- Modiphius Entertainment29
- Mogchelle4
- Mogchelle Cosplay10
- MojoGames7
- Molten Sulfur Press2
- MomentumVolsk2
- MomoCon4
- Mongoose Publishing75
- Mongoose Publishing / Mongoose Infantry Demo Team18