| All In Brewing/Toccalmatto | |
| All or Nothing Brewhouse | Oakville, Canada |
| Allagash Brewing Company | Portland, Maine |
| Allagash Brewing Company / Maine Beer Company / Rising Tide | Portland, Maine |
| Allagash Brewing Company / New Belgium Brewing Company | |
| Allen's Homebrew | Beavercreek, Ohio |
| Allentown Brew Works | Allentown, Pennsylvania |
| Alley Kat Brewing Company | Edmonton |
| Allguer Brauhaus AG Kempten | Kempten, Germany |
| Allguer Brauhaus AG Kempten, Brausttte Leuterschach | Marktoberdorf, Germany |
| Alltech's Lexington Brewing Company | Lexington, Kentucky |
| Alluvial Brewing Company | Ames, Iowa |
| Alma Mader Brewing | Kansas City, Missouri |
| Almanac Beer Co. | California |
| Almanac Beer Co./Stillwater Artisinal Ales | |