| Insomnia | White Pony Microbrewery | Imperial Porter | 11.2% |
| Insomnie | La Débauche | American Imperial Stout | 13.0% |
| Insomnie Cognac barrel aged | La Débauche | American Imperial Stout | 13.5% |
| Insomnium | Powder Keg Brewing Company | Russian Imperial Stout | 12.8% |
| Inspectrum Gadget | Brouwerij Frontaal | New England IPA | 8.5% |
| Inspiration | Community Beer Company | | 9.6% |
| Inspiration Red | Bullfrog Brewery | American Amber / Red Ale | 5.6% |
| Inspired Artist | Founders Brewing | Black IPA | 7.5% |
| Inspired By A Fancy Chocolate Bar | Stillwater Artisanal Ales | | |
| Instamatic | BrewDog Ltd | American Pale Ale | |
| Instigator Doppelbock | Sly Fox Brewhouse and Eatery - Royersford | Bock | 7.5% |
| Instigator India Pale Ale | Indie Ale House Brewing Company | American IPA | 6.5% |
| Instigator IPA | Odd Side Ales | American IPA | 8.5% |
| Instinctive Travels | Wolves & People Farmhouse Brewery | | |
| Instrumental | Oxbow Brewing Company | Wild Ale | 5.0% |