| Brewery | Location |
|---|---|
| Messorem Bracitorium | Montreal, Canada |
| Měšťanský pivovar Havlíčkův Brod a.s. | Havlickuv Brod, Czech Republic |
| metabrewing | costa mesa, california |
| Metal Monkey Brewing | Romeoville |
| Metalhead Brewery | Burgas, Bulgaria |
| Métaphore | |
| Méthode Goat | Belgium |
| Métier Brewing Company | Woodinville |
| Metropolitan Brewing | Chicago, Illinois |
| Meuse | |
| Meuse Brewing Company | |
| Međimurski Lepi Dečki | Čakovec, Croatia |
| Mia and Pia's Pizzeria and Brewhouse | Klamath Falls, Oregon |
| MIA Beer Company | Doral |
| Miami Brewing Company |