| NGNufarm - Greenville Plant | Greenville | MS | Chemical Manufacturing325320 | 20-99 | ◐ LIKELY ACTIVE |
| NANutrien Ag Solutions, INC. | Grenada | MS | Chemical Manufacturing325320 | — | ◐ LIKELY ACTIVE |
| NSNVision Solutions, INC. | Diamondhead | MS | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| OOakland | Oakland | MS | Food Manufacturing311412 | 100-499 | ◐ LIKELY ACTIVE |
| OSOld South Winery | Natchez | MS | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| OBOlive Branch, Ms | Olive Branch | MS | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| OMOne Mississippi Wines | Pass Christian | MS | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| PFPalace Fine Jewelry LLC | Greenwood | MS | Apparel Manufacturing315990 | — | ◐ LIKELY ACTIVE |
| PMPallet Management Services - Ollive Branch | Olive Branch | MS | Wood Product Manufacturing321920 | 100-499 | ◐ LIKELY ACTIVE |
| PTParish Tractor Company LLC | Hattiesburg | MS | Machinery Manufacturing333112 | — | ◐ LIKELY ACTIVE |
| PCPass Christian Yacht Works, LLC | Pass Christian | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
Patrick Industries #245 | Burnsville | MS | Plastics and Rubber Products Manufacturing326191 | 20-99 | ◐ LIKELY ACTIVE |
Patrick Industries #246 | Golden | MS | Plastics and Rubber Products Manufacturing326191 | 100-499 | ◐ LIKELY ACTIVE |
| PMPEARL, MS Jackson | Pearl | MS | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
| PFPeco Foods, Inc | West Point | MS | Food Manufacturing311615 | — | ◐ LIKELY ACTIVE |
| PFPeco Foods Inc.- Bay Springs Feed Mill | Bay Springs | MS | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| PFPeco Foods Inc.- Lake Feed Mill | Lake | MS | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| PFPeco Foods Inc.- Philadelphia Feed Mill | Philadelphia | MS | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| PFPeco Foods Inc.- West Point | West Point | MS | Food Manufacturing311615 | 500+ | ◐ LIKELY ACTIVE |
| PCPerrys Cheesecake Goodies LLC | Gore Springs | MS | Food Manufacturing311813 | — | ◐ LIKELY ACTIVE |
| PPhiladelphia | Philadelphia | MS | Wood Product Manufacturing321113 | 100-499 | ◐ LIKELY ACTIVE |
| P3Plant 3 | Union | MS | Machinery Manufacturing333613 | 20-99 | ◐ LIKELY ACTIVE |
| PCPlatte Chemical LPI MS | Grennville | MS | Chemical Manufacturing325320 | 20-99 | ◐ LIKELY ACTIVE |
| PEPoint Eight Power BSL | Bay St. Louis | MS | Electrical Equipment, Appliance & Component Manufacturing335313 | 20-99 | ◐ LIKELY ACTIVE |
Precision Medical, Inc. | Pearl | MS | Miscellaneous Manufacturing339113 | 20-99 | ◐ LIKELY ACTIVE |
| PHPrime Hospitality | Tupelo | MS | Furniture and Related Product Manufacturing337121 | 20-99 | ◐ LIKELY ACTIVE |
| PHPrime Hospitality Group - Saltillo | Saltillo | MS | Furniture and Related Product Manufacturing337127 | 1-19 | ◐ LIKELY ACTIVE |
| PTPrimetals Technologies - Columbus | Columbus | MS | Machinery Manufacturing333519 | 20-99 | ◐ LIKELY ACTIVE |
Producers Rice Mill, Inc. Greenville | Greenville | MS | Food Manufacturing311212 | 100-499 | ◐ LIKELY ACTIVE |
| PBProVia Booneville Facility | Booneville | MS | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| PMPT- Mississippi Investment Castings | Columbus | MS | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| PSPuebla Scrubs LLC | Ridgeland | MS | Apparel Manufacturing315990 | — | ◐ LIKELY ACTIVE |
| QSQuality Seafood & Poultry, Inc. | Biloxi | MS | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| QSQuality Steel Corporation of MS | Cleveland | MS | Fabricated Metal Product Manufacturing332420 | 100-499 | ◐ LIKELY ACTIVE |
| RCRain CII Carbon - Pruvis | Purvis | MS | Petroleum and Coal Products Manufacturing324199 | 1-19 | ◐ LIKELY ACTIVE |
| RARedemption Acres LLC | Lucedale | MS | Food Manufacturing311615 | — | ◐ LIKELY ACTIVE |
| RPRed Panther Enterprises, INC. | Okolona | MS | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| RSRelativity Space- Stennis Space Center | Stennis Space Center | MS | Transportation Equipment Manufacturing336414 | 100-499 | ◐ LIKELY ACTIVE |
| RRichland | Richland | MS | Textile Mills313230 | 20-99 | ◐ LIKELY ACTIVE |
| RFRiley Family Farms dba Southern Heritage Foods | Holly Springs | MS | Food Manufacturing311615 | — | ◐ LIKELY ACTIVE |
| RWRiverside Winery | Vicksburg | MS | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| RBRobinhood Brewing CO. LLC | Iuka | MS | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| RMRockhill Metalworks LLC | Macon | MS | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| RFRoll Form | Iuka | MS | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| RCRolls-royce Corporation | Meridian | MS | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| RRR & R Vineyard, LLC | Greenwood Springs | MS | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| RFRudolph Foods Company, Inc | New Hebron | MS | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| RFRudolph Foods Company New Hebron | New Hebron | MS | Food Manufacturing311919 | 20-99 | ◐ LIKELY ACTIVE |
| RORusken Olive Branch | Olive Branch | MS | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| RPRusken Packaging Jackson MS | Jackson | MS | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |