| Company | Category | Area | Address | Web | Contact person | |
| IRONTREE FARM INC | General Crop Farm | Washington | PO BOX 1267, FALL CITY, King, Washington, 98024-1267, USA | - | - | - |
| IRONTREE TRUCKING | Log & Lime Trucking | Oregon | 2409 IRELAND RD, WINSTON, Douglas, Oregon, 97496-4579, USA | - | - | Jim Earley |
| IRONTWINS.COM | Associations | Washington | 5500 MAUI CT, WEST RICHLAND, Benton, Washington, 99353-8176, USA | - | - | - |
