| Imperial Orchard Bu | De Garde Brewing | | |
| Imperial Oyster Stout | Three Boys | | 12.0% |
| Imperial Pajamas Coffee Stout | Begyle Brewing Company | American Imperial Stout | 9.8% |
| Imperial Pale | Engine House #9 | American Pale Ale | |
| Imperial Pale Ale | Route 66 Brewery | American Pale Ale | |
| Imperial Pale Lager | S:t Eriks Bryggeri | | 7.0% |
| Imperial Paradise Now | TrimTab Brewery | Berliner Weisse | 7.5% |
| Imperial Pastry Stout | Dutch Bargain | Sweet / Milk Stout | 10.0% |
| Imperial Peach Bu | De Garde Brewing | Berliner Weisse | |
| Imperial Peach Maigre | Transient Artisan Ales | Berliner Weisse | 4.5% |
| Imperial Perception of Depth | Phase Three Brewing Company | American Brown Ale | 15.5% |
| Imperial Pilsener - Beer Camp #43 | Sierra Nevada Brewing Co. | Imperial Pilsner | 5.6% |
| Imperial Pilsner | BJ's Restaurant and Brewery | Imperial Pilsner | 6.9% |
| Imperial Pilsner | Poppels Bryggeri AB | Imperial Pilsner | 7.0% |
| Imperial Pineapple Weizenbock | Brouwerij het Uiltje | Weizenbock | 8.5% |