| Issaquah Bullfrog Ale | Rogue Ales | American Pale Wheat Beer | |
| Isseki Nicho | Brasserie Dieu du Ciel | Saison | 9.5% |
| Isseki Nicho (fut de pinot noir) | Brasserie Dieu du Ciel | | |
| Istället För... | Emmaboda Bryggeri | Belgian Dark Strong Ale | 9.0% |
| iStout | 8 Wired Brewing Co. | Russian Imperial Stout | 10.0% |
| istout 11th Anniversary Edition | 8 Wired Brewing Co. | | |
| iStout Affogato | 8 Wired Brewing Co. | American Imperial Stout | 10.0% |
| It Ain't Much But It’s Honest Work | Triptych Brewing | Imperial IPA | 8.2% |
| It Aint Heavy | Bassoonbrew | Scotch Ale / Wee Heavy | 7.7% |
| It Came Upon a Midnight Meme | Triptych Brewing | Black IPA | 8.0% |
| It Comes In Waves | The Eighth State Brewing Company | American Imperial Stout | |
| It Doesn’t Look Like Anything to Me | Triptych Brewing | American Pale Ale | 5.8% |
| It Gets Better | Anchorage Brewing Co | Imperial IPA | 8.4% |
| It is pronounced Verdant | Verdant Brewing | | 6.5% |
| It Just Does Weird Things | Hacienda Beer Co. | New England IPA | 6.5% |