| Alter Brewing Company | 2300 Wisconsin Ave Ste 213 | Downers Grove | Illinois | 60515-2234 | United States | micro | |
| Alternation Brewing Company | 1539 S Broadway | Denver | Colorado | 80210-2607 | United States | micro | |
| Altitude Chophouse and Brewery | 320 S 2nd St | Laramie | Wyoming | 82070-3612 | United States | brewpub | |
| Altmeyer and Lewis Brewing Company | 15898 N Hwy 123 | San Marcos | Texas | 78666-2418 | United States | micro | |
| Altruist Brewing Company | 559 Main St Unit 105 | Sturbridge | Massachusetts | 01518-1208 | United States | brewpub | |
| Altstadt Brewery | 6120 E US Highway 290 | Fredericksburg | Texas | 78624-2176 | United States | micro | |
| Alvarado Street Brewery | 1315 Dayton St Ste E | Salinas | California | 93901-4400 | United States | micro | |
| Alvarado Street Brewery & Grill | 426 Alvarado St | Monterey | California | 93940-2711 | United States | brewpub | |
| Alvarium Beer Company | 365 John Downey Dr Ste B | New Britain | Connecticut | 06051-2922 | United States | micro | |
| Amador Brewing Company | 9659 Main St | Plymouth | California | 95669-9570 | United States | micro | |
| Amalgam Brewing | 6381 Beach St Unit A | Denver | Colorado | 80221-2036 | United States | proprietor | |
| Amani Brewing | 654 Ropp Dr | Martinsburg | West Virginia | 25403-1533 | United States | brewpub | |
| Ambacht Brewing | 1060 NE 25th Ave Ste B | Hillsboro | Oregon | 97124-4903 | United States | micro | |
| Amber Lantern Brewing Company | 44 N Main St | Warsaw | New York | 14569-1326 | United States | brewpub | |
| Ambitious Ales | | Long Beach | California | 90807-2907 | United States | planning | |
| Amelia Island Brewing Company | 318 Centre St | Fernandina Beach | Florida | 32034-4241 | United States | brewpub | |
| American Badass Beer | 1401 Abbott St Corktown | Detroit | Michigan | 48216-1946 | United States | contract | |
| American Brewers Inc | 3408 Miller Rd | Kalamazoo | Michigan | 49001-4111 | United States | micro | |
| American Brewing Company | 180 W Dayton St Ste 102 | Edmonds | Washington | 98020-4127 | United States | closed | |
| American Harvest Brewpub At Schoolcraft College | 18600 Haggerty Rd | Livonia | Michigan | 48152-3932 | United States | brewpub | |
| American Honor Beer Co | 700 N Pennsylvania Ave | Wilkes Barre | Pennsylvania | 18705-2451 | United States | contract | |
| American Icon Brewery | 1133 19th Place | Vero Beach | Florida | 32960 | United States | brewpub | |
| American Solera | 1702 E 6th St | Tulsa | Oklahoma | 74104 | United States | micro | |
| Americana Brewery | | Fort Lauderdale | Florida | 33328-1606 | United States | planning | |
| Amerisports Brew Pub | 3200 Ameristar Dr | Kansas City | Missouri | 64161 | United States | brewpub | |
| Amery Ale Works | 588 115th St | Amery | Wisconsin | 54001-7801 | United States | micro | |
| Amherst Brewing Co / Hangar Pub and Grill | 10 University Dr | Amherst | Massachusetts | 01002-2243 | United States | brewpub | |
| Ammo Brewing | 235 N Market St | Petersburg | Virginia | 23803-3207 | United States | micro | |
| Amorphic Beer | 3700 N Fratney St | Milwaukee | Wisconsin | 53212-2360 | United States | micro | |
| Amorys Tomb Brewing Co | 76 Main St | Maynard | Massachusetts | 01754-2516 | United States | micro | |
| Amplified Ale Works | 4150 Mission Blvd Ste 208 | San Diego | California | 92109-5054 | United States | brewpub | |
| Amplified Ale Works Miramar Studio | 9030 Kenamar Dr Ste 309 | San Diego | California | 92121-2432 | United States | brewpub | |
| Anacapa Brewing Co | 472 E Main St | Ventura | California | 93001-2627 | United States | brewpub | |
| Anacortes Brewery/Rockfish Grill | 320 Commercial Ave | Anacortes | Washington | 98221-1517 | United States | brewpub | |
| Anaheim Brewery | 336 S Anaheim Blvd | Anaheim | California | 92805-3830 | United States | micro | |
| Anawan Brewing Company | | Dighton | Massachusetts | 02764 | United States | planning | |
| Ancestry Brewery | 20585 SW 115th Ave | Tualatin | Oregon | 97062-6857 | United States | brewpub | |
| Anchor Brewing Co | 1705 Mariposa St | San Francisco | California | 94107-2334 | United States | large | |
| Anchorage Brewing Co | 148 W 91st Ave | Anchorage | Alaska | 99515-1901 | United States | micro | |
| Ancient City Brewing Co. | 3420 Agricultural Center Dr Ste 8 | Saint Augustine | Florida | 32092-0690 | United States | micro | |
| Andean Brewing | 300 Corporate Dr Ste 2 | Blauvelt | New York | 10913-1162 | United States | micro | |
| Anderson Valley Brewing Co | 17700 CA-253 | Boonville | California | 95415 | United States | regional | |
| Andrews Brewing Co | 353 High St | Lincolnville | Maine | 04849-5846 | United States | micro | |
| Andrews Brewing Co At Calaboose Cellars | 575 Aquone Rd | Andrews | North Carolina | 28901-7004 | United States | micro | |
| Angel City Brewery | 216 S Alameda St | Los Angeles | California | 90012-4201 | United States | micro | |
| Angelina Brewing Company, LLC. | | Lufkin | Texas | 75904-7550 | United States | planning | |
| Angry Chair Brewing, LLC. | 6401 N Florida Ave | Tampa | Florida | 33604-6007 | United States | micro | |
| Angry Erik Brewing | 10 Millpond Dr Unit 8 | Lafayette | New Jersey | 07848-3825 | United States | micro | |
| Angry Fish Brewing Company | 106 Fabrister Ln Ste C | Lexington | South Carolina | 29072 | United States | micro | |
| Angry Hank's Microbrewery | 20 N 30th St | Billings | Montana | 59101-2140 | United States | micro | |