| MMMilliken Monarch | Union | SC | Textile Mills313110 | — | ◇ UNVERIFIED |
| MMMk Metalfoils USA INC | Duncan | SC | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| MCMocom Compounds Corporation | Duncan | SC | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| MIMohawk Industries INC - Rocky River Facility | Calhoun Falls | SC | Textile Mills313110 | — | ◇ UNVERIFIED |
| MIMohawk Industries - Landrum Mills | Landrum | SC | Textile Product Mills314110 | — | ◇ UNVERIFIED |
| MIMohawk Industries Ulmer | Ulmer | SC | Textile Mills313110 | — | ◇ UNVERIFIED |
| MAMonroe Auto Equipment Company | Anderson | SC | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| MPMonsey Products CO - K | Rock Hill | SC | Petroleum and Coal Products Manufacturing324122 | — | ◇ UNVERIFIED |
| MMonti | Greenwood | SC | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MDMoore Drums INC | Charleston | SC | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| MWMoore Wallace State Printing | Columbia | SC | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| MCMorgan Concrete CO Pickens | Sunset | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MTMorrison Textiles Machinery CO | Ft Lawn | SC | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| MCMorton Custom Plastics | Saint Matthews | SC | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| MIMorton International Incorporated | Taylors | SC | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| MCMotor City Racks | Gaffney | SC | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| MVMount Vernon Mills Incorporated La France Division | La France | SC | Textile Mills313210 | — | ◇ UNVERIFIED |
| MVMount Vernon Mills Lafrance | La France | SC | Textile Mills313310 | — | ◇ UNVERIFIED |
| NCNemato Corporation | Spartanburg | SC | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| NCNevamar Company LLC | Hampton | SC | Plastics and Rubber Products Manufacturing326130 | — | ◇ UNVERIFIED |
| NLNew Life Chemical Sodium Hydrosulfite LLC | Greenville | SC | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| NMNew Millennium Building System S INC | Florence | SC | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| NYNew York Wire Company Walterboro | Walterboro | SC | Textile Mills313210 | — | ◇ UNVERIFIED |
| NCNippon Carbide Industries | Greenville | SC | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| NANorth American Container | Rowesville | SC | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| NSNorth South Wood Preserving Company | North | SC | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| NCNucor Cold Finishing | Darlington | SC | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| NENu-life Environmental INC | Easley | SC | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| OBOerlikon Balzers USA INC | Rock Hill | SC | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| OGOhio Gratings INC | Ridgeland | SC | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| OIOneita Industries Andrews Textile Plant | Andrews | SC | Apparel Manufacturing315120 | — | ◇ UNVERIFIED |
| OEOpmobility Exterior Usa, LLC | Duncan | SC | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| OMOpta Minerals Harseeville Plant | Hardeeville | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| OEOtis Elevator Company Solar | Florence | SC | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| OSOutokumpu Stainless Bar INC | Richburg | SC | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| OBOwens Brockway | Greenville | SC | Plastics and Rubber Products Manufacturing326160 | — | ◇ UNVERIFIED |
| OIOwt Industries | Pickens | SC | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| PCPackaging Corporation of America | Honea Path | SC | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| PPPalmetto Plating Company | Easley | SC | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| PPParkway Products INC | Seneca | SC | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| PFPatterson Fan - Office Addition | Blythewood | SC | Machinery Manufacturing333411 | — | ◇ UNVERIFIED |
| PCPeddinghaus CORP of Sc | Andrews | SC | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| PDPee Dee Ready Mix | Effingham | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PCPenn Craft LLC | Dorchester | SC | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| PFPepperidge Farms Incorporated | Aiken | SC | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| PBPepsi Bottling Group | Columbia | SC | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| PMPepsi-cola Metropolitan Bottling | Spartanburg | SC | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| POPepsi-cola of Florence LLC | Florence | SC | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| PYPharr Yarns Clover Mill | Clover | SC | Textile Mills313110 | — | ◇ UNVERIFIED |
| PEPhilips Electronics N America | Columbia | SC | Computer and Electronic Product Manufacturing334416 | — | ◇ UNVERIFIED |
