| M7Moark 7 Farms-school Farm | Neosho | MO | Apparel Manufacturing315999 | — | ◇ UNVERIFIED |
| MRMoberly Ready Mix Company Llc-moberly | Moberly | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MIMo-con Inc-mo-con INC | Fulton | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MLModern Litho-kansas City | North Kansas City | MO | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| MCMoniteau County Ready Mix | California | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMonterey Mushrooms INC | Bonne Terre | MO | Food Manufacturing311421 | — | ◇ UNVERIFIED |
| MMMontgomery Metal Craft INC | Springfield | MO | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| MCMoore Company | Marceline | MO | Machinery Manufacturing333411 | — | ◇ UNVERIFIED |
| MPMorris Packaging LLC | Jefferson City | MO | Plastics and Rubber Products Manufacturing326111 | — | ◇ UNVERIFIED |
| MBMorton Booth Co-carterville | Carterville | MO | Furniture and Related Product Manufacturing337122 | — | ◇ UNVERIFIED |
| MCMoss-dickens Co-moss-dickens CO | Union | MO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| MVMountain View Charcoal | Mountain View | MO | Chemical Manufacturing325191 | — | ◇ UNVERIFIED |
| MIMozel Inc-mozel INC | St. Louis | MO | Food Manufacturing311942 | — | ◇ UNVERIFIED |
| MIMsw INC | Joplin | MO | Furniture and Related Product Manufacturing337212 | — | ◇ UNVERIFIED |
| MCMulti-craft Contractors INC | Springfield | MO | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| MTMulti Technologies INC | Saint Louis | MO | Chemical Manufacturing325910 | — | ◇ UNVERIFIED |
| MPMurphy-brown - Princeton Feed Mill | Princeton | MO | Apparel Manufacturing315999 | — | ◇ UNVERIFIED |
| MPMvp Painting | Harrisonville | MO | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MDMwm Dexter INC | Aurora | MO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| NNNapco - North Bethany Quarry | Bethany | MO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| NANational Aluminum Brass Foundry INC | Independence | MO | Primary Metal Manufacturing331522 | — | ◇ UNVERIFIED |
| NGNational Graphics-national Graphics | St. Louis | MO | Paper Manufacturing322222 | — | ◇ UNVERIFIED |
| NRNational Refractories & Minerals CORP. | Wellsville | MO | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| NBN B West Contracting | House Springs | MO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| NWN.b. West Contracting CO. Inc.-plant #5 | Bourbon | MO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| NPNeal Printing CO | Kansas City | MO | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| NCNeosho Concrete Products Inc-neosho Concrete Products INC | Neosho | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| NPNesher Pharmaceuticals | Earth City | MO | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| NPNesher Pharmaceuticals INC | Earth City | MO | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| NFNew Frontier Materials | Florissant | MO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| NFNew Frontier Materials Operations Alpha LLC Kingshighway Asphalt | St. Louis | MO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| NFNew Frontier Materials Operations Alpha LLC South Asphalt Batch | Saint Louis County | MO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| NMNewton Mcdonald County Landfill | Neosho | MO | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| NMNexans Magnet Wire USA Incorporated | Mexico | MO | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| NNies/artcraft-nies/artcraft | St. Louis | MO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| NINike Ihm Inc-st Charles | St. Charles | MO | Plastics and Rubber Products Manufacturing326113 | — | ◇ UNVERIFIED |
| NDNoel Designs INC | Kansas City | MO | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| NCNooter Corp-nooter CORP | St. Louis | MO | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| NINordyne Inc-boonville Plant | Boonville | MO | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| NINordyne Inc-grand Plant | St. Louis | MO | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| NMNormandy Machine | Troy | MO | Electrical Equipment, Appliance & Component Manufacturing335311 | — | ◇ UNVERIFIED |
| NANorris Asphalt Paving Co-gallatin | Gallatin | MO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| NGNortek Global Hvac | Poplar Bluff | MO | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| NANorth American Refractories | Farber | MO | Nonmetallic Mineral Product Manufacturing327124 | — | ◇ UNVERIFIED |
| NANorth American Tie & Timber LLC | Scott City | MO | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| NCNorthland Coating Solutions | Kearney | MO | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Guidance & Electronics CO INC | Springfield | MO | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| NMNorthwest Missouri Biofuels LLC | St Joseph | MO | Food Manufacturing311222 | — | ◇ UNVERIFIED |
| NVNorwalk Vault | Saint Louis | MO | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| NLNostrum Labs | Kansas City | MO | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
