| KSKrm South - Plant 15 | Ridgeland | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KAKuraray America INC Vectran Divison | Fort Mill | SC | Chemical Manufacturing325220 | — | ◇ UNVERIFIED |
| LBLafarge Building Materials Aiken Redi Mix | Aiken | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLanier Construction Company Incorporated Gaston | Gaston | SC | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| LCLanier Construction:lexington Concrete | Lexington | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLaurens Container International Paper | Laurens | SC | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| LLLci Lineberger Construction Incorporated | Richburg | SC | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| LBLegacy Boat Company Incorporated | Charleston | SC | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| LHLeiner Health Products | Fort Mill | SC | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| LSLgc Standards/o2si Smart Solutions | North Charleston | SC | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
 Liberty Manufacturing, INC. | Liberty | SC | Textile Mills313310 | — | ◇ UNVERIFIED |
| LGLinde Gas | Blythewood | SC | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| LILinder Industrial Machinery | West Columbia | SC | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| LLockheed:charleston-closed | Charleston | SC | Fabricated Metal Product Manufacturing332912 | — | ◇ UNVERIFIED |
| LCLowcountry Creamery, LLC | Bowman | SC | Food Manufacturing311511 | — | ◇ UNVERIFIED |
| LCLsc Communications Spartanburg | Spartanburg | SC | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| MNMarabu North America LP | North Charleston | SC | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| MTMark Twain Redi-mix | Williamston | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMasonite Corporation Denmark Plant | Denmark | SC | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| MIMatlab Inc-closed | Greenwood | SC | Beverage and Tobacco Product Manufacturing312230 | — | ◇ UNVERIFIED |
| MSMatrix Scientific | Pontiac | SC | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| MTMaxcess Technologies-closed | Summerville | SC | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| MFMaytag Florence Operations | Florence | SC | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| MMMccanns Marble INC | North Charleston | SC | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
| MCMeadors Construction CORP | Charleston | SC | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| MEMemc Electronic Materials Incorporated | Moore | SC | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| MLMenzner Lumber & Supply Co, | West Union | SC | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| MMeritor | York | SC | Transportation Equipment Manufacturing336340 | — | ◇ UNVERIFIED |
| MIMesser Industries - Closed | Greer | SC | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MCMetal Chem INC | Greer | SC | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| MCMetokote Corportation | Sumter | SC | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MIMetrocon INC | Central | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MIMetrocon INC | Travelers Rest | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MIMetrocon Inman Plant | Inman | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMetromont Materials Corporation Belton | Anderson | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMetromont Materials Corporation Richburg | Richburg | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMetromont:whitehorse | Greenville | SC | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| MOMetso Outotec Usa, LLC | Columbia | SC | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| MTMeyer Tool Greenville Div | Greenville | SC | Electrical Equipment, Appliance & Component Manufacturing335314 | — | ◇ UNVERIFIED |
| MAMichelin Americas Research and Development Corporation | Greenville | SC | Plastics and Rubber Products Manufacturing326211 | — | ◇ UNVERIFIED |
| MNMichelin NA Us7 Lexington Facility | Lexington | SC | Plastics and Rubber Products Manufacturing326211 | — | ◇ UNVERIFIED |
| MTMichelin Tweel Technologies | Greenville | SC | Plastics and Rubber Products Manufacturing326211 | — | ◇ UNVERIFIED |
| MCMidwest Control Products | Summerville | SC | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MAMilliken and Company Barnwell Plant | Barnwell | SC | Textile Mills313311 | — | ◇ UNVERIFIED |
| MCMilliken Chemical Keystone Plant- Milli | Inman | SC | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| MCMilliken & CO Honea Path Plant | Honea Path | SC | Textile Mills313210 | — | ◇ UNVERIFIED |
| MCMilliken & CO Judson Plant | Greenville | SC | Textile Mills313111 | — | ◇ UNVERIFIED |
| MCMilliken & CO Sharon Plant | Abbeville | SC | Textile Mills313210 | — | ◇ UNVERIFIED |
| MCMilliken & Co/sycamore Complex | Clinton | SC | Textile Mills313111 | — | ◇ UNVERIFIED |
| MEMilliken Excelsior | Union | SC | Textile Mills313310 | — | ◇ UNVERIFIED |
