| Brewery | Location |
|---|---|
| Métaphore | |
| Méthode Goat | Belgium |
| Métier Brewing Company | Woodinville |
| Metropolitan Brewing | Chicago, Illinois |
| Međimurski Lepi Dečki | Čakovec, Croatia |
| Mia and Pia's Pizzeria and Brewhouse | Klamath Falls, Oregon |
| MIA Beer Company | Doral |
| Miami Brewing Company | |
| Michelob | |
| Michigan Brewing | Webberville, Michigan |
| Mickey Finn's Brewery | Libertyville, Illinois |
| Mickey's Brewing Co. | Milwaukee, Wisconsin |
| Microbrasserie au Frontibus | Gaspé |
| Microbrasserie aux fous brassant | Rivière-du-Loup |
| Microbrasserie Cap Gaspé | Gaspé |