Fiber Box Manufacturers
| Imagine It Gifts (Brea, CA) |
| Imaging Solutions & Packaging (Kansas City, MO) |
| Imperial Packaging Corp (Dayton, OH) |
| Imperial Paper Co (North Hollywood, CA) |
| Impress Packaging (Emmaus, PA) |
| Indiana Box Co Inc (Greenfield, IN) |
| Indiana Corrugated (Marion, IN) |
| Inland Container Corp (Los Angeles, CA) |
| Inland Paperboard & Packaging (Indianapolis, IN)
Manufacturer |
| Integrated Packaging Corp (New Brunswick, NJ) |
| Inter-Continental Corp (Newton, NC) |
| International Paper Co (Laurens, SC) |
| International Paper Co (Eighty Four, PA) |
| Inter-Pack Group (Monroe, MI) |
| Interstate Container (Reading, PA) |
| Interstate Container-Lowell (Lowell, MA) |
| Ipi Group Llc (Colorado Springs, CO) |
| J & J South Central (Huntsville, AL) |
| J & J Southeast (Ridgeway, VA) |
| J & L Supply (Mission, TX) |
| Jackson Corrugated Container (Middletown, CT) |
| Jamar Packaging (West Chicago, IL) |
| Jamel Container Inc (Fort Payne, AL) |
| Jamestown Container Co (Falconer, NY) |
| Jefferson Smurfit Corp (Greensboro, NC) |
