| RNRolls-royce Naval Marine INC | Pascagoula | MS | Primary Metal Manufacturing331529 | — | ◐ LIKELY ACTIVE |
| SISabic Innovative Plastics - Bay St. Louis | Bay St. Louis | MS | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| SFSanderson Farms, INC. | Hazlehurst | MS | Food Manufacturing311615 | — | ◐ LIKELY ACTIVE |
| SFSanderson Farms, INC. | Collins | MS | Food Manufacturing311615 | — | ◐ LIKELY ACTIVE |
| SFSanderson Farms Llc, Collins Feed Mill | Collins | MS | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| SCSequa Corporation, Dba Precoat Metals | Jackson | MS | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| SLShuqualak Lumber Company Inc, Planer Mill Division | Shuqualak | MS | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| SISoprema INC | Gulfport | MS | Petroleum and Coal Products Manufacturing324122 | 20-99 | ◐ LIKELY ACTIVE |
| SASoutheastern Architectural Woodworks, INC | Brandon | MS | Furniture and Related Product Manufacturing337212 | 20-99 | ◐ LIKELY ACTIVE |
| STSoutheastern Timber Products | Ackerman | MS | Wood Product Manufacturing321113 | 100-499 | ◐ LIKELY ACTIVE |
| SIStandard Industrial Corp. | Clarksdale | MS | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
| SIStandex International Corporation, Master Bilt Products | New Albany | MS | Plastics and Rubber Products Manufacturing326150 | — | ◐ LIKELY ACTIVE |
| SWSteel Works, LLC | Jackson | MS | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| SCStella-jones Corporation | Wiggins | MS | Wood Product Manufacturing321114 | — | ◐ LIKELY ACTIVE |
| SSSterling Specialty Chemicals US LLC | Aberdeen | MS | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
Taylor Machine Works INC | Louisville | MS | Fabricated Metal Product Manufacturing332313 | — | ◐ LIKELY ACTIVE |
| TPTaylor Power Systems INC | Clinton | MS | Electrical Equipment, Appliance & Component Manufacturing335312 | 100-499 | ◐ LIKELY ACTIVE |
| TCTecumseh Compressor Company | Verona | MS | Machinery Manufacturing333415 | 100-499 | ◐ LIKELY ACTIVE |
| TCThe Chemours Company FC, LLC - Delisle | Pass Christian | MS | Chemical Manufacturing325130 | 100-499 | ◐ LIKELY ACTIVE |
| TTTombigbee Tooling Inc | Mantachie | MS | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
Triner Scale & Manufacturing Co., INC | Olive Branch | MS | Machinery Manufacturing333998 | 1-19 | ◐ LIKELY ACTIVE |
| TSTri State Ready Mix, Plant Number 22 | Olive Branch | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| TGTrulite Glass and Aluminum Solutions | Grenada | MS | Nonmetallic Mineral Product Manufacturing327215 | — | ◐ LIKELY ACTIVE |
| TWTupelo Wilbert Burial Vault | Verona | MS | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| UYUSA Yeast Company LLC | Hattiesburg | MS | Food Manufacturing311999 | — | ◐ LIKELY ACTIVE |
| VIValmet INC | Columbus | MS | Fabricated Metal Product Manufacturing332114 | — | ◐ LIKELY ACTIVE |
| VRVicksburg Refinery | Vicksburg | MS | Petroleum and Coal Products Manufacturing324110 | — | ◐ LIKELY ACTIVE |
| VIView INC | Olive Branch | MS | Nonmetallic Mineral Product Manufacturing327215 | 20-99 | ◐ LIKELY ACTIVE |
| VRViking Range Llc, Cooking Plant, East Side | Greenwood | MS | Electrical Equipment, Appliance & Component Manufacturing335220 | — | ◐ LIKELY ACTIVE |
| WOWellman of Mississippi INC | Bay Saint Louis | MS | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| WCWestlake Chemicals & Vinyls LLC | Aberdeen | MS | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| WNWeyerhaeuser Nr Company, Mccomb Wood Products | Magnolia | MS | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| WNWeyerhaeuser Nr CO - Philadelphia Lumber | Philadelphia | MS | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| WPWinston Plywood and Veneer | Louisville | MS | Wood Product Manufacturing321212 | 100-499 | ◐ LIKELY ACTIVE |
| WPWood Preserving, INC | Brookhaven | MS | Wood Product Manufacturing321114 | — | ◐ LIKELY ACTIVE |
| WCWorthington Cylinders Mississippi LLC | New Albany | MS | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| AMAbb Motors and Mechanical INC | Columbus | MS | Primary Metal Manufacturing331522 | — | ◐ LIKELY ACTIVE |
| AWAjinomoto Windsor INC | Oakland | MS | Food Manufacturing311412 | — | ◐ LIKELY ACTIVE |
| AUAllied Universal Corporation | Ellisville | MS | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
American Tank & Vessel INC | Lucedale | MS | Fabricated Metal Product Manufacturing332313 | — | ◐ LIKELY ACTIVE |
| AMApac Mississippi Inc, Tupelo Asphalt Plant | Tupelo | MS | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| APAuto Parts Manufacturing Mississippi, INC. | Guntown | MS | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| AEAyrshire Electronics | Corinth | MS | Computer and Electronic Product Manufacturing334418 | — | ◐ LIKELY ACTIVE |
| AGAzz Galvanizing Services - Moss Point | Moss Point | MS | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| BCBayou Concrete Llc, Pascagoula | Pascagoula | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CCCalvert Company Inc, the | Richland | MS | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| CMCbr Machinists INC | Laurel | MS | Primary Metal Manufacturing331221 | 1-19 | ◐ LIKELY ACTIVE |
| CPChemstar Products Company | Brookhaven | MS | Food Manufacturing311221 | — | ◐ LIKELY ACTIVE |
| CPChevron Pascagoula Refinery | Pascagoula | MS | Petroleum and Coal Products Manufacturing324110 | — | ◐ LIKELY ACTIVE |
| CRComfort Revolution, LLC | Belmont | MS | Plastics and Rubber Products Manufacturing326150 | — | ◐ LIKELY ACTIVE |