| Brewery | Location |
|---|---|
| Avery Brewing Company | Boulder, Colorado |
| Avery Brewing/Russian River | |
| Aviator Ales, Inc | |
| Aviator Brewing Company | Fuquay Varina, North Carolina |
| Avondale Brewing | Birmingham, AL |
| 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 |