Group
- MHE Crew/Privateer Press7
- MHE Crew/Reaper Miniatures7
- MHE Crew/Wyrd Miniatures6
- MHG4
- MMC13
- MU Skulls27
- Machine Age Productions4
- Margaret Weis Productions4
- Maxveld Games LLC6
- Mayday Games18
- Mayfair Games140
- MedievalCookery.com2
- Mid-Hudson Valley Gaming Geeks6
- Mind Storm Labs49
- Miskatonic Alumni Association1
- MojoGames2
- Mongoose Publishing/WildFire12
- Morris-Butler House1
- Morris-Butler House Museum2
- Myrmidon Design Bureau3