| Ārpus Brewing Co. | Latvia |
| Arrogant Bastard Brewing Co. | Escondido, California |
| Arrow Lodge Brewing | Covina, California |
| Arrowhead Ales Brewing Company | New Lenox |
| Art + Science | Sheridan, OR |
| Artesano | Groton, Vermont |
| Artifex Brewing Company | San Clemente, California |
| 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 |
| Aslan Brewing | Bellingham, Washington |