| Brewery | Location |
|---|---|
| Inland Empire Brewing Company | Riverside, CA |
| Inlet Brewing Company | Jupiter, Florida |
| Inne Beczki | |
| Innis & Gunn | Edinburgh, United Kingdom |
| Innocente Brewing Company | Waterloo |
| Innovation Brewing Company | Sylva, NC |
| Inside the Five | Sylvania , OH |
| Insight Brewing | Minneapolis, Minnesota |
| Insight Cellars | |
| Institution Ale Company | Camarillo, CA |
| Insurrection Aleworks | Heidelberg, Pennsylvania |
| Intangible Ales | Enola, PA |
| Interboro Spirits and Ales | |
| Interbrau SpA | Villafranca Padovana, Italy |
| Intergalactic Brewing Company | San Diego, CA |