| Artisanal Brew Works | Saratoga Springs, NY |
| Arvon Brewing Co. | Michigan |
| Asahi Breweries | Tokyo, Japan |
| Ascension Brewing | Novi |
| Asheville Brewing Company | Asheville, North Carolina |
| Asheville Pizza and Brewing Co. | Asheville, North Carolina |
| Asia Pacific Breweries Limited | Singapore, Singapore |
| Aslin | Herndon |
| Aslin Beer Company | Herndon, Virginia |
| 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 |
| Ass Kisser Ales | San Jose, California |