| Busted Barrel | Red Lodge Ales | American Stout | |
| Busted Knuckle | Quaff On! Brewing Co. | English Porter | 7.2% |
| Buster Nut Brown Ale | Ska Brewing Company | American Brown Ale | 5.3% |
| Bustin' Surf Boards | Junkyard Brewing Company | Kölsch | 5.8% |
| Busy Work | Corporate Ladder Brewing | Munich Dunkel | 5.3% |
| But Where Is The Passionfruit? Imperial Sour Ale | Ārpus Brewing Co. | Fruit and Field Beer | 7.5% |
| But, Here We are | Triptych Brewing | American IPA | 6.1% |
| Butcher | Black Project Spontaneous & Wild Ales | | |
| The Butcher | Societe Brewing Company | American Imperial Stout | 9.8% |
| Butcher Gold | Hop Butcher for the World | Light Lager | 4.8% |
| Butchers Banquet | FrauGruber Brewing | | 10.2% |
| Butchertown Black Ale | Speakeasy Ales and Lagers | Black IPA | 8.0% |
| Buteo's Brulee | Horus Aged Ales | American Imperial Stout | 15.0% |
| Butta Cup | Funky Buddha Lounge and Brewery | American Brown Ale | 8.8% |
| Butter | Other Half Brewing Co. | American IPA | 6.8% |