| Ardwen | Launois-sur-Vence, France |
| Åre Bryggcompagni | Åre |
| Argus Bewery | Chicago |
| Armadillo Ale Works | |
| Arrogant Bastard Brewing Co. | Escondido, California |
| Arthur Guinness & Son | Dublin, Ireland |
| Asahi Breweries | Tokyo, Japan |
| Asheville Brewing Company | Asheville, North Carolina |
| Asheville Pizza and Brewing Co. | Asheville, North Carolina |
| Asia Pacific Breweries Limited | Singapore, Singapore |
| Aspall Cider | Stowmarket, United Kingdom |
| Aspen Brewing Company | Aspen, Colorado |
| Aspen Brewing Company / Casey Brewing And Blending | |
| Aspen Brewing Company/Great Divide Brewing Company | |
| Ass Clown | Cornelius |