| 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 |
| Adventure Brewing Company | Fredericksburg |
| Aeronaut Brewing Company | Somerville, Massachusetts |
| Affligem Brouwerij | Opwijk, Belgium |
| Afterthought Brewing Company | Lombard, Illinois |
| Against the Grain | Louisville, Kentucky |
| Against the Grain & Brouwerij de Molen | Louisville, Kentucky |
| Against The Grain Brewery & Smokehouse | |
| Agassiz Brewing | Winnipeg, Canada |
| Agner & Wolf Brewery Corp. | Nashua, NH |