| Brewery | Location |
|---|---|
| Axes Castellum | |
| Ayinger Privatbrauerei | Aying, Germany |
| Aztec Brewing Company | |
| Azvex Brewing Company | Liverpool , United Kingdom |
| B BOP FERMENTORY | Biatorbágy, Hungary |
| B. Nektar Meadery | Ferndale, Michigan |
| B.O.B.'s Brewery | |
| B.O.M. Brewery | |
| B52 Brewing Co. | Conroe |
| Baa Baa Brewhouse | Brookshire |
| Baardaap Brewing | Middelburg, Netherlands |
| Baboy | Oslo |
| Bacchus & The Brewery at Bacchus | New Paltz, New York |
| Bach Brewing | Auckland |
| Back Cabin Brewing Co. | Citrus Heights/Tahoe |