| NWNovares Walworth 1 | Walworth | WI | 100–499 | ◐ LIKELY ACTIVE |
| NWNovares Walworth 2 | Walworth | WI | 20–99 | ◐ LIKELY ACTIVE |
| NTNOVA Technologies | Tallahassee | FL | 100–499 | ◐ LIKELY ACTIVE |
| NPNovatech Patio Doors, Inc - Ridgeway, VA | Ridgeway | VA | 20–99 | ◐ LIKELY ACTIVE |
| NANovelis Ashville OH | Ashville | OH | 100–499 | ◐ LIKELY ACTIVE |
| NCNovelis Corporation | Warren | OH | 20–99 | ◐ LIKELY ACTIVE |
| NINovelis Inc. | Berea | KY | 100–499 | ◐ LIKELY ACTIVE |
| NENovex Enterprises | Fort Lauderdale | FL | — | ▲ REPORTED CLOSED |
| NFNOV FGS Andrews | Andrews | TX | 20–99 | ◐ LIKELY ACTIVE |
| NFNOV FGS Iuka | Iuka | MS | 1–19 | ◐ LIKELY ACTIVE |
| NFNOV Fiber Glass Systems | Sand Springs | OK | 20–99 | ◐ LIKELY ACTIVE |
| NFNOV Fiberglass Systems Mount Union, PA | Mount Union | PA | 100–499 | ◐ LIKELY ACTIVE |
| NMNovi Michigan | Novi | MI | 100–499 | ◐ LIKELY ACTIVE |
| NNovolex | Holley | NY | 100–499 | ◐ LIKELY ACTIVE |
| NNovolex | City of Industry | CA | 20–99 | ◐ LIKELY ACTIVE |
| NWNOV - Waycross | Waycross | GA | 20–99 | ◐ LIKELY ACTIVE |
| NLNpee L.c | Hialeah | FL | — | ◐ LIKELY ACTIVE |
| NNNPF ( Northern Plains Finishing) | Casselton | ND | 1–19 | ◐ LIKELY ACTIVE |
| NMNPI Medical Inc | Antioch | IL | 20–99 | ◐ LIKELY ACTIVE |
| NMNPI Medical (Westfall Technik, LLC) | Ansonia | CT | 100–499 | ◐ LIKELY ACTIVE |
| NCNPK Carencro, LA | Carencro | LA | 100–499 | ◐ LIKELY ACTIVE |
| NCNSK-AKS Corporation | Clarinda | IA | 1–19 | ◐ LIKELY ACTIVE |
| NANSK Alliance | Alliance | OH | 1–19 | ◐ LIKELY ACTIVE |
| NSNTN Sanoh America | Smyrna | TN | 1–19 | ◐ LIKELY ACTIVE |
| NWNuark Warehouse & Logistics | Blytheville | AR | 20–99 | ◐ LIKELY ACTIVE |
| NNucor | Auburn | NY | 100–499 | ◐ LIKELY ACTIVE |
| NCNucor Cold Finish | Brigham City | UT | 20–99 | ◐ LIKELY ACTIVE |
| NCNucor Corporation | Jewett | TX | — | ◐ LIKELY ACTIVE |
| NHNucor Harris Rebar Mid-Atlantic LLC (Baltimore Facility) | Baltimore | MD | 20–99 | ◐ LIKELY ACTIVE |
| NHNucor Harris Rebar Northeast LLC (Bethlehem Facility) | Bethlehem | PA | 20–99 | ◐ LIKELY ACTIVE |
| NHNucor Harris Rebar Northeast LLC (Canaan Facility) | Canaan | NH | 20–99 | ◐ LIKELY ACTIVE |
| NHNucor Harris Rebar Northeast LLC (Pawtucket Facility) | Pawtucket | RI | 20–99 | ◐ LIKELY ACTIVE |
| NHNucor Harris Rebar Northeast LLC (South Deerfield Facility) | South Deerfield | MA | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Midwest LLC Bourbonnais, Illinois | Bourbonnais | IL | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Midwest LLC Lansing, Michigan | Lansing | MI | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Midwest LLC Marion, Ohio | Marion | OH | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Midwest LLC Mooresville, Indiana | Mooresville | IN | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Midwest LLC - Newton Iowa | Newton | IA | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Midwest LLC - Roberts Wisonsin | Roberts | WI | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Midwest LLC Rockford, Illinois | Rockford | IL | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Midwest LLC - Sedalia Missouri | Sedalia | MO | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Midwest LLC - St. Louis Missouri | Saint Louis | MO | 1–19 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Services Center Corp | Fort Wayne | IN | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Southcentral LLC - Dallas Texas | Dallas | TX | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Southcentral LLC - Houston Texas | Dayton | TX | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Southcentral LLC - Jackson Mississippi | Flowood | MS | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Southcentral LLC - Jewett Texas | Jewett | TX | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Southcentral LLC - Slidell Louisiana | Slidell | LA | 20–99 | ◐ LIKELY ACTIVE |
| NSNucor Skyline | Belpre | OH | 20–99 | ◐ LIKELY ACTIVE |
| NSNucor Skyline | Huger | SC | 20–99 | ◐ LIKELY ACTIVE |