| Union Craft Brewing | Baltimore |
| Unionsbru Haidhausen | Mnchen, Germany |
| Unita Brewing | Salt Lake City, Utah |
| United Breweries Limited | Bangalore, India |
| United Dutch Breweries B.V. | Breda, Netherlands |
| Unity Vibration | Ypsilanti, Michigan |
| The Unknown Brewing Co. | |
| Unruly Brewing Co. | Muskegon, MI |
| Upland Brewing | Bloomington, Indiana |
| Upland Brewing Company / Jolly Pumpkin Artisan Ales | |
| Upper Mississippi Brewing | Clinton, Iowa |
| Upright Brewing Company | |
| Upslope Brewing | Boulder |
| Upstate Brewing Company | Elmira, New York |
| Upstream Brewing Company at Legacy | Omaha, Nebraska |