| The Iron Tankard | Terrapin Beer Company | American Amber / Red Ale | 9.4% |
| Iron Thistle | Rahr & Sons Brewing Company | Scottish Ale | 8.0% |
| Iron Works Alt | Metropolitan Brewing | Altbier | 5.8% |
| Iron Ziggurat | Mystic Brewery | | |
| Ironbound Ale | Iron Hill Brewery - Wilmingon | American Pale Ale | 5.1% |
| Ironfoe | Bottle Logic | American Imperial Stout | 14.5% |
| Ironhead IPA | Revolver Brewing | English IPA | 6.5% |
| Ironhead Porter Old No. 3 | Flour City Brewing | American Porter | 6.0% |
| Ironhorse Chicago Common | Argus Bewery | California Common / Steam Beer | 5.4% |
| Ironhorse Not Brown | Railway Brewing | American Brown Ale | |
| Ironman Imperial Stout | Free State Brewing | | |
| Ironman Wheat | Southend Brewery and Smokehouse - Charleston | American Lager | |
| Ironside Best | English Ales Brewery | | |
| Ironwood Dark | Tied House Cafe & Brewery - San Jose | American Brown Ale | |
| Iroquois Pale Ale | Adirondack Brewery | American IPA | 7.0% |