| Brewery |
Location |
| Athenian Brewery | Athens, Greece |
| Athletic Brewing Co. | Stratford, Connecticut |
| Atlanta Brewing Company | Atlanta, Georgia |
| Atlantic Brewing Company | Bar Harbor, Maine |
| Atlas Brew Works | Washington D.C. |
| Atom Brewing | Erie, Colorado |
| Atrium | Belgium |
| Atwater Block Brewing | Detroit, Michigan |
| Atwater Brewery | Detroit, Michigan |
| Au Grimoire Des Légendes | Aywaille, Belgium |
| Auburn Alehouse | Auburn |
| AuerBräu AG | Rosenheim |
| Augenbrauerei Biel | Biel-Bienne, Switzerland |
| August Schell Brewing | New Ulm, Minnesota |
| Augusta Brewing | Augusta, Missouri |