| MMMmc Materials INC | Madison, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Clinton Plant | Clinton, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Florence | Florence, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
 Mmc Materials INC - Forest | Forest, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Forest 30301 | Forest, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Jackson Fortification Street | Jackson, MS | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Yazoo City 30152 | Yazoo, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MJModine Jackson INC | Jackson, MS | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| NSNeel Schaffer Inc, Jitney Jr Number 617 | Tchula, MS | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PPPrecision Packaging INC | Jackson, MS | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| PMPresto Manufacturing Company | Jackson, MS | Electrical Equipment, Appliance & Component Manufacturing335211 | — | ◇ UNVERIFIED |
| PEPursue Energy Corporation | Brandon, MS | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| RCRainbow Creations INC | Ridgeland, MS | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| RMRb Manufacturing LLC | Brandon, MS | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| RIReman INC | Polkville, MS | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
| RLRollcon Llc, Onsite Plant | Clinton, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SMSchaffner Manufacturing Company INC | Jackson, MS | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| SLSheldon Laboratory Systems, LLC | Crystal Springs, MS | Furniture and Related Product Manufacturing337127 | — | ◇ UNVERIFIED |
| SBSierra Building Systems LLC | Jackson, MS | Plastics and Rubber Products Manufacturing326100 | — | ◇ UNVERIFIED |
| SCSimpson County Ready Mix Concrete, Plant Number 6 | Magee, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSmith County | Forest, MS | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| SSSpeciality Stairs and Miscellaneous Fabrication INC | Pearl, MS | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| SRSpencer Ready Mix INC | Jackson, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SASuperior Asphalt Inc, Hazlehurst Plant, Copiah County Number 1 | Hazlehurst, MS | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SASuperior Asphalt Inc, Holmes County Plant Number Two | Pickens, MS | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SASuperior Asphalt Inc, Jackson | Jackson, MS | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SASuperior Asphalt Inc, Scott County Plant Number One | Forest, MS | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TPTaylor Power System | Richland, MS | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| TPTaylor Power Systems INC | Richland, MS | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| TSThe Scotts CO | Pearl, MS | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| TIThonet Industries Division of Falcon Companies | Canton, MS | Furniture and Related Product Manufacturing337127 | — | ◇ UNVERIFIED |
| TPTimber Producers Durant Sawmill Division, LLC | Durant, MS | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| TRTwin Rivers Paper Company LLC | Pickens, MS | Paper Manufacturing322121 | — | ◇ UNVERIFIED |
| TFTyson Farms Inc, Dba River Valley Ingredients | Forest, MS | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| TFTyson Foods, Forest Complex Processing | Forest, MS | Food Manufacturing311615 | — | ◇ UNVERIFIED |
| UGUnited Gilsonite Laboratories | Jackson, MS | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| YPYazoo Power Equipment LLC | Jackson, MS | Machinery Manufacturing333112 | — | ◇ UNVERIFIED |
| 2R262 Ridgeland MS | Ridgeland, MS | Food Manufacturing311811 | 20–99 | ◐ LIKELY ACTIVE |
| 3B3d Beauty & Barbershop, LLC | Terry, MS | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| ANAirgas Nitrous Oxide - Yazoo City | Yazoo City, MS | Chemical Manufacturing325120 | 20–99 | ◐ LIKELY ACTIVE |
| AHAllegis Holdings LLC | Canton, MS | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| BGBekeson Glass LLC | Flowood, MS | Nonmetallic Mineral Product Manufacturing327212 | — | ▲ REPORTED CLOSED |
| BBBiloxi Beach Group LLC #1 | Morton, MS | Food Manufacturing311615 | — | ◐ LIKELY ACTIVE |
| BBBiloxi Beach Group LLC #2 | Pelahatchie, MS | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| BCBlueScope Coated Products | Byam, MS | Fabricated Metal Product Manufacturing332812 | 100–499 | ◐ LIKELY ACTIVE |
| BCBlueScope Coated Products Jackson | Byram, MS | Fabricated Metal Product Manufacturing332812 | 100–499 | ◐ LIKELY ACTIVE |
| BSBlue Sky RE, LLC | Richland, MS | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| BRBuster Rinds LLC | Jackson, MS | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| CSCambridge Signs, LLC | Bolton, MS | Miscellaneous Manufacturing339950 | — | ◐ LIKELY ACTIVE |
| CTCarnet Technology | Terry, MS | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
