| Brewery | Location |
|---|---|
| INU Island Ales | Kaneohe |
| Invasive Species Brewing | Fort Lauderdale, Florida |
| Inveralmond Brewery | Perth, United Kingdom |
| Invercargill Brewery | Invercargill, New Zealand |
| Invictus | Peru |
| Iowa Brewing Company | Cedar Rapids |
| Ipswich Ale Brewery | Ipswich |
| Iris Wild Ales Brewery | |
| Irish Brewing Company | Newbridge, Ireland |
| Iron City Brewing Co. | Pittsburgh, Pennsylvania |
| Iron Fire | California |
| Iron Fist Brewing Company | Vista, Califonia |
| Iron Flamingo Brewery | Corning, NY |
| Iron Forge Brewing | |
| Iron Goat Brewing Co. | Spokane, Washington |