| AC Golden Brewing Company | Golden |
| Ace Ciders | Sebastopol, California |
| Acoustic Ales | San Diego, California |
| Acoustic Meadery | Lake Ann |
| Actual Brewing Co. | Columbus |
| Adelbert's Brewery | Austin, Texas |
| Adirondack Brewery | Lake George, New York |
| Adnams & Co. | Southwold, United Kingdom |
| Adroit Theory | Purcellville, VA |
| Adur Brewery | Shoreham-on-Sea |
| Adventure Brewing Company | Fredericksburg |
| Aeronaut Brewing Company | Somerville, Massachusetts |
| AF Brew | Saint Petersburg, Russian Federation |
| Affligem Brouwerij | Opwijk, Belgium |
| Afterthought Brewing Company | Lombard, Illinois |