| Into the Woods | Copper Kettle Brewing Company | | 6.3% |
| Intoxicated Demons | Interboro Spirits and Ales | Imperial IPA | 10.0% |
| IntraKöastal Kölsch | Tideland Brewing | Kölsch | 5.8% |
| Intrepid Observation | Bottle Logic | | 12.7% |
| Intrepid Orchid | Bottle Logic | English Barleywine | 12.2% |
| Intrinsic Duality No. 1 | Pipeworks Brewing Company | Russian Imperial Stout | 15.3% |
| Intrinsic Duality No. 2 | Pipeworks Brewing Company | American Barleywine | 13.0% |
| Introspection | Deciduous Brewing Company | Russian Imperial Stout | 10.3% |
| Introvert Session IPA | Left Hand Brewing Company | American IPA | 4.8% |
| Introvertical | Transient Artisan Ales | Fruited Kettle Sour | 7.0% |
| Invasion | Speciation Artisan Ales | | 7.6% |
| Invasion Brettanique | Brasserie Dieu du Ciel | | 8.5% |
| Invasion Farmhouse IPA | Mikkeller | American IPA | 8.0% |
| Invasion IPA | Mikkeller/Anchorage | | |
| Invasion Pale Ale | Cigar City Brewing | | 5.0% |