| LCLippert Compenents - Plant 120 | Burnsville | MS | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| LTLithified Technologies Us, LLC | Waveland | MS | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| LILoblolly Industries LLC | Meridian | MS | Wood Product Manufacturing321215 | — | ◇ UNVERIFIED |
| LMLockheed Martin Space Operations | Bay Saint Louis | MS | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| LWLoggins Woodwork | Kilmichael | MS | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| LILong Industrial Tools | Greenville | MS | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| LELott Enterprise, INC. | Greenwood | MS | Machinery Manufacturing333411 | — | ◇ UNVERIFIED |
| LSLoyd Sand and Gravel Company | Hernando | MS | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| LSLPC Stateline Rd OB, LLC | Olive Branch | MS | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| LSLPC Stateline Rd OB, LLC | Olive Branch | MS | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| LFLucedale Forestry Product LLC | Lucedale | MS | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| MCMadison Components, LLC | Pontotoc | MS | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| MFMaeco Fabrication, INC. | Biloxi | MS | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| MIManufab, INC. | Bay Saint Louis | MS | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| MCMarietta Corporation | Olive Branch | MS | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| MFMarine Flooring, LLC | Pascagoula | MS | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| MPMar-jac Poultry Ms, LLC | Waynesboro | MS | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| MTMark Twain Holding CO Llc, Marina Commerce Center | Olive Branch | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MAMartinrea Automotive Structures (usa), INC | Shannon | MS | Transportation Equipment Manufacturing336370 | — | ◇ UNVERIFIED |
| MMasterbilt/standex | New Albany | MS | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| MMMaury Manufacturing | Holly Springs | MS | Machinery Manufacturing333516 | — | ◇ UNVERIFIED |
| MHMax Home, LLC | Fulton | MS | Furniture and Related Product Manufacturing337121 | — | ◇ UNVERIFIED |
| MHMax Home, LLC | Fulton | MS | Furniture and Related Product Manufacturing337121 | — | ◇ UNVERIFIED |
| MGMcMillin Graphics Printing LLC | Ripley | MS | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| MCM C Wood, LLC | Pontotoc | MS | Wood Product Manufacturing321211 | — | ◇ UNVERIFIED |
| MWMc Wood, LLC | Pontotoc | MS | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| MCMetaris CORP. | Forest | MS | Machinery Manufacturing333996 | — | ◇ UNVERIFIED |
| MAMetl-span a Div of Nci Group INC | Jackson | MS | Fabricated Metal Product Manufacturing332311 | — | ◇ UNVERIFIED |
| MMMetso Minerals Industries (former) | Clarksdale | MS | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| MJMickey Jones | Ellisville | MS | Nonmetallic Mineral Product Manufacturing327111 | — | ◇ UNVERIFIED |
| MSMid South Lumber and Supply | Vicksburg | MS | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| MFMission Forest Products Corinth Sawmill | Corinth | MS | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| MEMississippi Ethanol LLC | Winona | MS | Chemical Manufacturing325193 | — | ◇ UNVERIFIED |
| MIMississippi Ice, Inc | Starkville | MS | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
 Mississippi Lime Company - Vicksburg Plant | Vicksburg | MS | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| MMMississippi Material Co., INC. | Vicksburg | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MPMississippi Precision Casting Parts, LLC | Columbus | MS | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| MAMmc Aws Jan 200 | Jackson | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMmc Material, INC | Meridian | MS | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
 Mmc Materials Inc, Dundee Wind Farm | Dundee | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Hernando Temp Site | Hernando | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MAMolded Acoustical Products of Easton, INC. | Clarksdale | MS | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| MCMorelock & Company Ironworks INC. | New Albany | MS | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| MIMorton Intl INC (mpm) | Moss Point | MS | Chemical Manufacturing325000 | — | ◇ UNVERIFIED |
| MNMs Nonwovens INC | Pontotoc | MS | Textile Mills313230 | — | ◇ UNVERIFIED |
| MCMuller Cooper Tube Company, INC. | Fulton | MS | Primary Metal Manufacturing331421 | — | ◇ UNVERIFIED |
| MBMusee Bath | Madison | MS | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| NINanocor INC | Aberdeen | MS | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| NFNational Filter Media Corporation | Olive Branch | MS | Textile Product Mills314999 | — | ◇ UNVERIFIED |
| NWNations Welding Service, INc. | Brookhaven | MS | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
