| JHJack Haley | Pearl | MS | Computer and Electronic Product Manufacturing334220 | — | ◐ LIKELY ACTIVE |
| JMJackson, MS - 239 | Jackson | MS | Wood Product Manufacturing321920 | 20-99 | ◐ LIKELY ACTIVE |
| JMJackson Ms Mfg Plant | Jackson | MS | Machinery Manufacturing333996 | 500+ | ◐ LIKELY ACTIVE |
| JSJackson Sales Location | Richland | MS | Food Manufacturing311920 | 1-19 | ◐ LIKELY ACTIVE |
| JMJaco Machine LLC | Amory | MS | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JJanpc | Prentiss | MS | Nonmetallic Mineral Product Manufacturing327332 | 1-19 | ◐ LIKELY ACTIVE |
| JPJBS Prepared Foods-Tupelo Facility | Tupelo | MS | — | — | ◐ LIKELY ACTIVE |
| JTJindal Tubular USA llc | BayStlouis | MS | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| JFJTB Furniture | Columbus | MS | Furniture and Related Product Manufacturing337127 | 20-99 | ◐ LIKELY ACTIVE |
| JPJulie's Pasture to Plate Meat Market and Processing LLC | Lumberton | MS | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| JCJuniper Creek Farms, LLC | Poplarville | MS | Food Manufacturing311615 | — | ◐ LIKELY ACTIVE |
| KFKalmbach Feeds dba Ware Milling | Houston | MS | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| KSKellex Seating Tupelo | Tupelo | MS | Furniture and Related Product Manufacturing337121 | 20-99 | ◐ LIKELY ACTIVE |
| KPKent Precision Foods Group- Columbus | Columbus | MS | Food Manufacturing311930 | 100-499 | ◐ LIKELY ACTIVE |
| KBKershenstine's Beef Jerky, Inc. | Eupora | MS | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| KKeytronic | Corinth | MS | Computer and Electronic Product Manufacturing334418 | 100-499 | ◐ LIKELY ACTIVE |
| KCKimberly-Clark Corinth Professional | Corinth | MS | Paper Manufacturing322121 | 100-499 | ◐ LIKELY ACTIVE |
| KCKimberly Clark GNW | Corinth | MS | Textile Mills313230 | 100-499 | ◐ LIKELY ACTIVE |
| KFKoch Foods- Forest Debone | Forest | MS | Food Manufacturing311615 | 500+ | ◐ LIKELY ACTIVE |
| KFKoch Foods (Further Processing) Plant | Morton | MS | Food Manufacturing311615 | 500+ | ◐ LIKELY ACTIVE |
| KFKoch Foods - Morton Feed Mill | Morton | MS | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| KFKoch Foods of Mississippi-Morton Prepared | Morton | MS | Food Manufacturing311615 | — | ◐ LIKELY ACTIVE |
| LFLakes Farm Raised Catfish Inc | Dundee | MS | Food Manufacturing311710 | — | ◐ LIKELY ACTIVE |
| LCLandworx Construction Contractors LLC | Petal | MS | Fabricated Metal Product Manufacturing332439 | — | ◐ LIKELY ACTIVE |
| LPLarson Packaging Inc. OB | Olive Branch | MS | Wood Product Manufacturing321920 | 20-99 | ◐ LIKELY ACTIVE |
| LMLaurel Machine and Foundry, Hawkes Circle | Laurel | MS | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| LSLa-Z-Boy South | Newton | MS | Furniture and Related Product Manufacturing337121 | 100-499 | ◐ LIKELY ACTIVE |
| LILc Industries INC. | Hazlehurst | MS | Fabricated Metal Product Manufacturing332510 | — | ◐ LIKELY ACTIVE |
| LRLehman Roberts Company- Plant 1 | Kilmichael | MS | Petroleum and Coal Products Manufacturing324121 | 1-19 | ◐ LIKELY ACTIVE |
| LRLehman Roberts Company- Plant 11 | Oxford | MS | Petroleum and Coal Products Manufacturing324121 | 1-19 | ◐ LIKELY ACTIVE |
| LRLehman Roberts Company- Plant 6 | Hernando | MS | Petroleum and Coal Products Manufacturing324121 | 1-19 | ◐ LIKELY ACTIVE |
| LRLehman Roberts- Plant 10 | Byhalia | MS | Petroleum and Coal Products Manufacturing324121 | 1-19 | ◐ LIKELY ACTIVE |
| LPLiberty Plastics - Baldwyn, MS | Baldwyn | MS | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| LPLii Piping Fabricators LLC | Lucedale | MS | Fabricated Metal Product Manufacturing332996 | — | ◐ LIKELY ACTIVE |
| LSLil Smokehouse, LLC | Hattiesburg | MS | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| LLLincoln Lumber Mississippi, LLC | Forest | MS | Wood Product Manufacturing321113 | 20-99 | ◐ LIKELY ACTIVE |
| LLLineage Logistics | Richland | MS | — | — | ◐ LIKELY ACTIVE |
| LMLlavaj Mi Amor LLC | Silver Creek | MS | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| LFLloyd Forge & Finish LLC | Hermanville | MS | Fabricated Metal Product Manufacturing332323 | — | ◐ LIKELY ACTIVE |
| LMLockheed Martin Corporation Pascagoula Campus (1212) | Pascagoula | MS | Computer and Electronic Product Manufacturing334511 | 20-99 | ◐ LIKELY ACTIVE |
| LMLockheed Martin Corporation Stennis (1563) | Stennis Space Center | MS | Transportation Equipment Manufacturing336414 | 100-499 | ◐ LIKELY ACTIVE |
| LMLockheed Martin Corporation US MS Meridian (1507) | Meridian | MS | Transportation Equipment Manufacturing336413 | 100-499 | ◐ LIKELY ACTIVE |
| LLouisville | Louisville | MS | Fabricated Metal Product Manufacturing332313 | 1-19 | ◐ LIKELY ACTIVE |
| LTLucky Town Brewing Company, LLC | Jackson | MS | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| LWLynn's Welding Shop, LLC | Vicksburg | MS | Transportation Equipment Manufacturing336612 | — | ◐ LIKELY ACTIVE |
| MDMadison Dry Ice Plant | Madison | MS | Chemical Manufacturing325120 | 1-19 | ◐ LIKELY ACTIVE |
| MFMagee Feed Mill (MLO) | Magee | MS | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| MMMagnolia Moon Vineyards and Winery, LLC | Caledonia | MS | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| MWMagnolia Winery | Nettleton | MS | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| MMMagnum Metals, LLC | Nettleton | MS | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |