| Impasse Saison Ale | Crux Fermentation Project | Saison | 6.6% |
| Impatiently Waiting | Magnify Brewing | | |
| Impavid | Håkan | Oatmeal Stout | 9.9% |
| Impending Descent | Ale Asylum | Russian Imperial Stout | 10.5% |
| Impending Descent Bourbon Barrel Aged | Troegs Brewing | Russian Imperial Stout | 12.0% |
| Impending Dissent: Belgian Imperial Stout | Ale Asylum | American Imperial Stout | 10.5% |
| Impending Dissent: Russian Imperial Stout | Ale Asylum | Russian Imperial Stout | 10.5% |
| Impending Grace | Four Saints Brewing Company | American Imperial Stout | 10.0% |
| Imper Ale Nera | Birra Tenute Collesi SRL | Belgian Dark Strong Ale | 8.0% |
| Imperator | Abita Brewing Company | Black IPA | 8.0% |
| Imperator Bałtycki | Browar Pinta | Baltic Porter | 9.1% |
| Imperfectly Perfect | The Rare Barrel | Wild Ale | 7.5% |
| Imperial | Cerveceria Costa Rica | American Adjunct Lager | 4.6% |
| Imperial | O/O / Stigbergets Bryggeri | | 8.0% |
| Imperial 'Nanana Stout | Burns Family Artisan Ales | American Imperial Stout | 10.8% |