| Oyster Bar Bistro and Brewery | Fort Wayne, Indiana |
| Oyster City Brewing Company | Apalachicola |
| Ozark Beer Company | Rogers |
| Pabst Brewing Company | San Antonio, Texas |
| Pacific Beach Brewhouse | Pacific Beach, California |
| Pacific Coast Brewing | Oakland, California |
| Pacific Plate Brewing Company | Monrovia |
| Pacific Rim Brewing | Seattle, Washington |
| Paddock Wood | Saskatoon |
| Palaweño Brewery | Puerto Princesa, Philippines |
| Pale Fire Brewing Co. | Harrisonburg, VA |
| Palm Breweries | Steenhuffel, Belgium |
| Palmetto Brewing | Charleston, South Carolina |
| Palo Alto Brewing Company | Mountain View, CA |
| Pang Pang Brewery | Stockholm, Sweden |