| LCLPFP Crest Foam | Houston | MS | Plastics and Rubber Products Manufacturing326140 | 20-99 | ◐ LIKELY ACTIVE |
| MLMacrosource Llc, Greenville North | Greenville | MS | Chemical Manufacturing325314 | — | ◐ LIKELY ACTIVE |
| MPMagnolia Processing Inc, Pride of the Pond | Tunica | MS | Food Manufacturing311712 | — | ◐ LIKELY ACTIVE |
| MFMars Food Us, LLC | Greenville | MS | Food Manufacturing311212 | — | ◐ LIKELY ACTIVE |
| MPMcneely Plastic Products, INC. | Clinton | MS | Plastics and Rubber Products Manufacturing326112 | 100-499 | ◐ LIKELY ACTIVE |
| MPMcNeely Plastics | Hazlehurst | MS | Paper Manufacturing322220 | 20-99 | ◐ LIKELY ACTIVE |
| MPMenasha Packaging Company-Pelahatchie | Pelahatchie | MS | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
| MFMission Forest Products Lp, Mission Forest Products Corinth Sawmill | Corinth | MS | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| MSMississippi Silicon | Burnsville | MS | Primary Metal Manufacturing331314 | 100-499 | ◐ LIKELY ACTIVE |
| MTMississippi Tantec Leather INC | Vicksburg | MS | Leather and Allied Product Manufacturing316110 | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Aberdeen Facility | Aberdeen | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
Mmc Materials Inc, Byhalia Plnt | Byhalia | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Columbia | Columbia | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Mccomb | Mccomb | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Natchez Plant | Natchez | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| MMMmc Materials, Inc., North Natchez Plant | Natchez | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| MCMtd Consumer Group INC. | Verona | MS | Machinery Manufacturing333112 | 500+ | ◐ LIKELY ACTIVE |
| NLNanocor LLC | Aberdeen | MS | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| NWNewly Weds Foods Inc, Flavorite Division | Horn Lake | MS | Food Manufacturing311000 | — | ◐ LIKELY ACTIVE |
| NBNiagara Bottling LLC | Byhalia | MS | Beverage and Tobacco Product Manufacturing312111 | — | ◐ LIKELY ACTIVE |
| NHNo Heart Lumber LLC | Winona | MS | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| NLNorth Lamar Concrete INC | Sumrall | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| OWOlin Winchester, LLC | Oxford | MS | Fabricated Metal Product Manufacturing332992 | — | ◐ LIKELY ACTIVE |
| OHOwls Head Alloys | West Point | MS | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| OGOxbow Greenwood, LLC | Greenwood | MS | Food Manufacturing311224 | — | ◐ LIKELY ACTIVE |
| OSOxford Sand Company Inc, Pontotoc Plant | Pontotoc | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
Patrick Industries INC Dba Baymont Inc, Belmont Facility | Belmont | MS | Plastics and Rubber Products Manufacturing326191 | — | ◐ LIKELY ACTIVE |
| PFPeco Foods Inc.- Canton West Fulton Street Processing | Canton | MS | Food Manufacturing311615 | 500+ | ◐ LIKELY ACTIVE |
| PFPeco Foods of Mississippi INC . | Canton | MS | Food Manufacturing311119 | — | ◐ LIKELY ACTIVE |
PG Technologies - Ellisville, MS | Ellisville | MS | Fabricated Metal Product Manufacturing332811 | 100-499 | ◐ LIKELY ACTIVE |
| PCPierce Construction & Maintenance | Petal | MS | Machinery Manufacturing333243 | 20-99 | ◐ LIKELY ACTIVE |
| PBPine Belt Processing INC | Stonewall | MS | Textile Mills313310 | — | ◐ LIKELY ACTIVE |
| PBPine Belt Ready Mix Concrete INC | Collins | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| PUPlumrose USA INC | Booneville | MS | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| PTPlymouth Tube Company- Eupora | Eupora | MS | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
Point Eight Power BSL | Bay Saint Louis | MS | Electrical Equipment, Appliance & Component Manufacturing335313 | 20-99 | ◐ LIKELY ACTIVE |
| PSPontotoc Spring | Pontotoc | MS | Fabricated Metal Product Manufacturing332613 | 20-99 | ◐ LIKELY ACTIVE |
| PWPremium Waters Byram | Byram | MS | Beverage and Tobacco Product Manufacturing312112 | 20-99 | ◐ LIKELY ACTIVE |
| PPProfile Products LLC | Blue Mountain | MS | Nonmetallic Mineral Product Manufacturing327121 | — | ◐ LIKELY ACTIVE |
| RAR a Lesso Seafood INC | Biloxi | MS | Food Manufacturing311712 | — | ◐ LIKELY ACTIVE |
| RFReed Food Technology | Pearl | MS | Food Manufacturing311941 | 20-99 | ◐ LIKELY ACTIVE |
| RSRelativity Space INC | John C Stennis Space Center | MS | Transportation Equipment Manufacturing336414 | — | ◐ LIKELY ACTIVE |
| RTRichton Tie and Timber Llc, Newton Woodyard | Newton | MS | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| RHRite Hite Product Corporation | Horn Lake | MS | Fabricated Metal Product Manufacturing332439 | 100-499 | ◐ LIKELY ACTIVE |
| RIRockett INC | Flowood | MS | Fabricated Metal Product Manufacturing332116 | — | ◐ LIKELY ACTIVE |
| RRRolls Royce North America, Rolls Royce Center of Excellence | Stennis Space Center | MS | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| SDSaltillo Division of B and B Concrete Company INC | Saltillo | MS | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| STScanlon Taylor Millwork Company | Jackson | MS | Furniture and Related Product Manufacturing337212 | 20-99 | ◐ LIKELY ACTIVE |
| SDScott Davis Chip Company | Amory | MS | Wood Product Manufacturing321999 | — | ◐ LIKELY ACTIVE |
| SMScranton Manufacturing Company INC Dba Mclaughlin Family Companies Inc, Newway | Booneville | MS | Transportation Equipment Manufacturing336211 | — | ◐ LIKELY ACTIVE |