| Brewery | Location |
|---|---|
| Ma Brasserie | Montréal, Canada |
| Maallust | Veenhuizen, Netherlands |
| MaBrasserie | Montréal , Canada |
| Mac and Jack's Brewery | Redmond, Washington |
| MacAuslan Brewing | Montreal, Canada |
| Machine House Brewing | Seattle |
| Mackinnon Brothers Brewing | Bath, Canada |
| Macks Ølbryggeri | Tromsø |
| Maclay and Co. | Clackmannan, United Kingdom |
| Maclean's Ales Inc. | Hanover, Canada |
| Macleod Ale Brewing Co. | Van Nuys, California |
| Mad and Noisy Brewing | Canada |
| Mad Anthony Brewing | Fort Wayne, Indiana |
| MAD Beer | Copenhagen, Denmark |
| Mad Brewer/Brew Keeper |