| RMResinall Mississippi - Hattiesburg | Hattiesburg, MS | Chemical Manufacturing325211 | 100–499 | ● ACTIVE |
 Hybrid Plastics, Incorporated | Hattiesburg, MS | Chemical Manufacturing325180 | — | ● ACTIVE |
 Hanger Prosthetics & Orthotics, INC. | Hattiesburg, MS | Miscellaneous Manufacturing339113 | — | ● ACTIVE |
| IAImprovise Ability LLC | Hattiesburg, MS | Electrical Equipment, Appliance & Component Manufacturing335210 | — | ● ACTIVE |
 Stragna Solutions LLC | Hattiesburg, MS | Miscellaneous Manufacturing339113 | — | ● ACTIVE |
| CLC L Dews and Sons Foundry and Machinery Company INC | Hattiesburg, MS | Primary Metal Manufacturing331511 | 20–99 | ◐ LIKELY ACTIVE |
| MPMar-jac Poultry | Hattiesburg, MS | Food Manufacturing311615 | 500+ | ◐ LIKELY ACTIVE |
| MTMississippi Tank and Manufacturing Company | Hattiesburg, MS | Fabricated Metal Product Manufacturing332313 | — | ◐ LIKELY ACTIVE |
| PTPowe Timber Company, Dba American Wood | Richton, MS | Wood Product Manufacturing321114 | — | ◐ LIKELY ACTIVE |
| UYUSA Yeast Company LLC | Hattiesburg, MS | Food Manufacturing311999 | — | ◐ LIKELY ACTIVE |
| RCRain Cii Carbon LLC | Purvis, MS | Petroleum and Coal Products Manufacturing324199 | — | ◐ LIKELY ACTIVE |
| ZCZeon Chemicals LP | Hattiesburg, MS | Chemical Manufacturing325212 | — | ◐ LIKELY ACTIVE |
| JCJohnson Controls-york | Hattiesburg, MS | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
 Mmc Materials INC | Hattiesburg, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SWSouthern Wood Preserving of Hattiesburg INC | Hattiesburg, MS | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
 Gi Jean LLC | Petal, MS | Chemical Manufacturing325411 | — | ◐ LIKELY ACTIVE |
| Hanger Prosthetics & Orthotics INC | Hattiesburg, MS | Miscellaneous Manufacturing339113 | — | ◐ LIKELY ACTIVE |
| BBeaumont | Beaumont, MS | Wood Product Manufacturing321212 | 100–499 | ◐ LIKELY ACTIVE |
| FPF-s Prestress LLC | Hattiesburg, MS | Nonmetallic Mineral Product Manufacturing327390 | — | ◐ LIKELY ACTIVE |
| HSHunt Southland Lumberton Refinery | Lumberton, MS | Petroleum and Coal Products Manufacturing324110 | — | ◐ LIKELY ACTIVE |
| NLNorth Lamar Concrete INC | Sumrall, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| PCPierce Construction & Maintenance | Petal, MS | Machinery Manufacturing333243 | 20–99 | ◐ LIKELY ACTIVE |
| SCSoutheastern Concrete Company Inc, Plant Number 5 | Hattiesburg, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| VBVicki Boargoub Dba Family Meat Processing | Sumrall, MS | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| GPGeorgia Pacific Wfs LLC | New Augusta, MS | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| PBPine Belt Ready Mix, Glendale Avenue Plant | Hattiesburg, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| WPWis Pak of Hattiesburg, LLC | Hattiesburg, MS | Beverage and Tobacco Product Manufacturing312111 | — | ◐ LIKELY ACTIVE |
| ACAmerican Concrete Products Ms Inc, Hattiesburg Plant | Hattiesburg, MS | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| BGBerry Global | Hattiesburg, MS | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CPCooper Power Systems | Lumberton, MS | Electrical Equipment, Appliance & Component Manufacturing335311 | — | ◇ UNVERIFIED |
| DIDelta Industries, Inc., Hattiesburg Cole Road Plant 87 | Hattiesburg, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DEDiscovery Energy Llc, Engine Plant Number 1 | Hattiesburg, MS | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| DEDiscovery Energy Llc, Engine Plant Number 2 | Hattiesburg, MS | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| DRDunn Roadbuilders Llc, Petal Facility | Petal, MS | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| HPHanson Pipe and Precast INC | Hattiesburg, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HPHanson Pipe & Products Southeast INC Hattiesburg | Hattiesburg, MS | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| HIHercules INC | Hattiesburg, MS | Chemical Manufacturing325191 | — | ◇ UNVERIFIED |
| KEKohler Engines Plant #2 | Hattiesburg, MS | Machinery Manufacturing333618 | — | ◇ UNVERIFIED |
| LCLamar Concrete INC | Purvis, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LRLeaf River Forest Products, LLC | New Augusta, MS | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| MFMason Forest Products INC | Hattiesburg, MS | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| MWMf Wiggins LLC | Wiggins, MS | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Lumberton Temp Site | Lumberton, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Oak Grove 30703 | Oak Grove, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Petal | Petal, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Sumrall | Sumrall, MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| NDNew Dairy Alabama, LLC (formerly Dairy Fresh of Alabama, Llc) | Hattiesburg, MS | Food Manufacturing311411 | — | ◇ UNVERIFIED |
| RQRays Quality Meats | Petal, MS | Food Manufacturing311611 | — | ◇ UNVERIFIED |
| RFRoss Forest Products, Dixie Pine Road Facility | Hattiesburg, MS | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| SCSoutheastern Concrete Company Inc, Plant Number 4 | Hattiesburg, MS | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
