| 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% |
| Imperial Pistache | Beauregard - Brasserie Distillerie | American Imperial Stout | 16.0% |
| Imperial Plum Bu | De Garde Brewing | Berliner Weisse | 5.6% |
| Imperial Porter | All In Brewing / Lervig | American Porter | 8.5% |
| Imperial Porter | brasserie Lupulus | Imperial Porter | 9.5% |