| NJNew Jersey Boom & Erectors | Henryville | PA | — | ◇ UNVERIFIED |
| NMNew Millenium Building Systems | Continental | OH | — | ◇ UNVERIFIED |
| NMNew Millennium Building System S INC | Florence | SC | — | ◇ UNVERIFIED |
| NFNewport Fabricators INC | Green Lane | PA | — | ◇ UNVERIFIED |
| NNNewport News Shipbldg Oyster Pt Industrial Pk Opip | Newport News | VA | — | ◇ UNVERIFIED |
| NNNewport News Shipbuilding Oakland Industrial Oip | Newport News | VA | — | ◇ UNVERIFIED |
| NSNew Steel, INC. | Omaha | NE | — | ◇ UNVERIFIED |
| NINexcoil INC | Riverside | CA | — | ◇ UNVERIFIED |
| NCNexGen Composites, LLC | Franklin | OH | — | ◇ UNVERIFIED |
| NRNexGen Rebar LLC | Harrisonburg | VA | — | ◇ UNVERIFIED |
| NGNext Generation Construction, LLC | New York | NY | — | ◇ UNVERIFIED |
| NLNext Level Metal | Baldwin | IL | — | ◇ UNVERIFIED |
| NIN-fab, INC. | Houston | TX | — | ◇ UNVERIFIED |
| NSNGC Sheetmetal And More LLC | Hyde Park | MA | — | ◇ UNVERIFIED |
| NGNGM Glass Metals, LLC | Woodbridge | VA | — | ◇ UNVERIFIED |
| NINGU Industries L.L.C. | Concord | NC | — | ◇ UNVERIFIED |
| NFNiagara Frontier Custom Fabrication, INC. | Buffalo | NY | — | ◇ UNVERIFIED |
| NGNic Global Manufacturing Solutions | Woodinville | WA | — | ◇ UNVERIFIED |
| NGNic Global Manufacturing Solutions | Gallatin | TN | — | ◇ UNVERIFIED |
| NMNicholas Malkoch | Clayton | NC | — | ◇ UNVERIFIED |
| NPNichols Propeller Company | Greenville | MS | — | ◇ UNVERIFIED |
| NPNickelson Plastics INC | Osceola | WI | — | ◇ UNVERIFIED |
| NMNick's Metal Fabricating & Sons, INC. | Chicago | IL | — | ◇ UNVERIFIED |
| NLNicorr LLC | Tippecanoe | IN | — | ◇ UNVERIFIED |
| NMNielsen Metal Manufacturing INC | Maple Grove | MN | — | ◇ UNVERIFIED |
| NWNiermann Weeks Company, INC | Millersville | MD | — | ◇ UNVERIFIED |
| NBNifty Bar Grinding & Cutting Solutions, Inc. | Penfield | NY | — | ◇ UNVERIFIED |
| NINikkel Iron Works INC | Shafter | CA | — | ◇ UNVERIFIED |
| NBNiles Building Products INC. | Niles | OH | — | ◇ UNVERIFIED |
| NSNimen Sheet Metal, INC. | Saint Clairsville | OH | — | ◇ UNVERIFIED |
| NLNineThree010, LLC | Logan | UT | — | ◇ UNVERIFIED |
| NINinth Inning Corporation | Salem | OR | — | ◇ UNVERIFIED |
| NMNiron Magnetics INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| NMNiron Magnetics-sartell | Sartell | MN | — | ◇ UNVERIFIED |
| NMNix Metals Fabrication Building Expansion | Poseyville | IN | — | ◇ UNVERIFIED |
| NJN J Mccutchen INC | Stockton | CA | — | ◇ UNVERIFIED |
| NENKE Environmental LLC | Keene | NH | — | ◇ UNVERIFIED |
| NINmi Industrial Holdings INC | Sacramento | CA | — | ◇ UNVERIFIED |
| NNNobelclad New Stockpile | Dunbar | PA | — | ◇ UNVERIFIED |
| NWNoble Welding & Mfg INC | Centerville | MN | — | ◇ UNVERIFIED |
| NMNodelco Manufacturing, INC. | Gilroy | CA | — | ◇ UNVERIFIED |
| NNNoll Norwesco LLC | Fife | WA | — | ◇ UNVERIFIED |
| NANoorda Architectural Metals INC | Saint George | UT | — | ◇ UNVERIFIED |
| NCNooter Corporation | Saint Louis | MO | — | ◇ UNVERIFIED |
| NMNor-cal Metal Fabricators | Oakland | CA | — | ◇ UNVERIFIED |
| NINorcold INC * | Gettysburg | OH | — | ◇ UNVERIFIED |
| NPNorco Precision INC | Maple Grove | MN | — | ◇ UNVERIFIED |
| NSNorco Sheet Metal | Oakland | CA | — | ◇ UNVERIFIED |
| NANordson Asymtek | Vista | CA | — | ◇ UNVERIFIED |
| NFNorell Foundry & Machine INC | Franklin | NH | — | ◇ UNVERIFIED |
| NINorfolk Iron and Metal | New Century | KS | — | ◇ UNVERIFIED |
| NGNorma Group | Auburn Hills | MI | — | ◇ UNVERIFIED |
 North Alabama Fabricating Company, INC. | Cullman | AL | — | ◇ UNVERIFIED |
| North Alabama Fabricating Company, INC. | Glen Allen | AL | — | ◇ UNVERIFIED |
| NANorth American Kitchen Solutions, INC. | Venus | TX | — | ◇ UNVERIFIED |
| NANorth American Kitchen Solutions, INC. | Eastlake | OH | — | ◇ UNVERIFIED |
| NANorth American Metals INC | Banks | OR | — | ◇ UNVERIFIED |
| NANorth American Waste Management Usa, LLC | Saco | ME | — | ◇ UNVERIFIED |
| NMNorthbridge Mills LLC | Northbridge | MA | — | ◇ UNVERIFIED |
| NCNorth Chicago Iron Works, INC. | North Chicago | IL | — | ◇ UNVERIFIED |
| NCNorth Coast Steel | San Francisco | CA | — | ◇ UNVERIFIED |
| NCNorth Coast Tool, INC. | Erie | PA | — | ◇ UNVERIFIED |
| NCNorth County Iron Corp. | Groveton | NH | — | ◇ UNVERIFIED |
| NMNortheastern Metals, LLC | Greenfield | MA | — | ◇ UNVERIFIED |
| NENorth East Fabrication Company INC | Jonesville | MI | — | ◇ UNVERIFIED |
| NSNortheast Sheet Metal LLC | Hoboken | NJ | — | ◇ UNVERIFIED |
| NCNorthern California Framing & Carpentry, INC. | Ripon | CA | — | ◇ UNVERIFIED |
| NHNorthern Horizons INC | Solway | MN | — | ◇ UNVERIFIED |
| NMNorthern Metal Fab INC | Baldwin | WI | — | ◇ UNVERIFIED |
| NONorthern Oregon Fabrication LLC | North Plains | OR | — | ◇ UNVERIFIED |
| NPNorthern Plains Steel CO | Fargo | ND | — | ◇ UNVERIFIED |
| NSNorthern Screw Machine Company INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| NSNorthern Steel Manufacturing LLC | Elcho | WI | — | ◇ UNVERIFIED |
| NTNorthern Tool - Equipment Company INC | Faribault | MN | — | ◇ UNVERIFIED |
| NFNorth Fork Mechanical & Fabrication, LLC | Saint Louisville | OH | — | ◇ UNVERIFIED |
| NHNorth Houston Machine, INC. | Tomball | TX | — | ◇ UNVERIFIED |
 Northland Machine INC | Cohasset | MN | — | ◇ UNVERIFIED |
| NMNorth Marina Bayside Abw Site | Everett | WA | — | ◇ UNVERIFIED |
| NINorthpost INC | Ogilvie | MN | — | ◇ UNVERIFIED |
| NSNorth Second Street Smithfield LLC Dba Con-quip | Burlington | KY | — | ◇ UNVERIFIED |
| NSNorth Shore Steel Co., INC. | Lynn | MA | — | ◇ UNVERIFIED |
| NSNorthshore Steel INC | Two Harbors | MN | — | ◇ UNVERIFIED |
| NSNorthside Sheet Metal, INC. | Panama City | FL | — | ◇ UNVERIFIED |
| NTNorthside Tin Shop | Chattanooga | TN | — | ◇ UNVERIFIED |
| NSNorth Silsbee Facility | Silsbee | TX | — | ◇ UNVERIFIED |
| NSNorth Star Cart Company | Brooklyn Center | MN | — | ◇ UNVERIFIED |
| NSNorth Star Fabricators, INC. | Pocatello | ID | — | ◇ UNVERIFIED |
| NSNorth Star Propellers INC | San Diego | CA | — | ◇ UNVERIFIED |
| NTNorth Texas Steel | Fort Worth | TX | — | ◇ UNVERIFIED |
| NANorthwest Aluminum Trailers INC | Roseburg | OR | — | ◇ UNVERIFIED |
| NINorthwest Industries, INC. | Russellville | AL | — | ◇ UNVERIFIED |
| NPNorthwest Precision Fabricators INC | Oregon City | OR | — | ◇ UNVERIFIED |
| NSNorthwest Specialty Fab LLC | Central Point | OR | — | ◇ UNVERIFIED |
| NSNorthwest Steel Fab INC Deer Park | Deer Park | WA | — | ◇ UNVERIFIED |
| NSNorthwest Structural Services INC | Portland | OR | — | ◇ UNVERIFIED |
| NSNorthwest Structural Services INC | Portland | OR | — | ◇ UNVERIFIED |
| NSNorthwest Structural Services INC | Portland | OR | — | ◇ UNVERIFIED |
| NTNorthwest Thermal Systems INC | Estacada | OR | — | ◇ UNVERIFIED |
| NMNorwest Manufacturing Equipment LLC | Rupert | ID | — | ◇ UNVERIFIED |
| NANose and Mustache LLC | Markle | IN | — | ◇ UNVERIFIED |
