| Impromptu Pale Ale | Gottberg Brew Pub | American Pale Ale | 5.0% |
| Improv (Improvisación) Oatmeal Rye India-Style Brown Ale | Cigar City Brewing | American Brown Ale | 9.0% |
| Impulse | Blue Moon Brewing Co. | American Dark Wheat Beer | 8.5% |
| In Absentia Luci | Other Half Brewing Co. | | |
| In Absentia Luci (Rum Barrel Aged) | Other Half Brewing Co. | American Imperial Stout | 11.0% |
| In Perpetuity | Tree House Brewing Company | American IPA | 6.7% |
| In The Name Of Suffering | Three Floyds Brewing | Black IPA | 7.1% |
| In The Spirit Of Skully Barrel No. 2 | Paradox Beer Company | Wild Ale | 9.0% |
| In The Spirit Of Skully Barrel No. 3 | Paradox Beer Company | American Stout | 10.0% |
| In The Spirit Of Skully Barrel No. 4 | Paradox Beer Company | Wild Ale | 10.0% |
| In-2-Tents | Base Camp Brewing Company | Imperial IPA | 7.7% |
| In-Heat Wheat | Flying Dog Brewery | Hefeweizen | 4.7% |
| Inceptus | Three Taverns Craft Beer | Wild Ale | 6.0% |
| Incorrigible | New Holland Brewing Company | | 4.9% |
| Incorrigible Reserve | New Holland Brewing Company | | 4.5% |