| HSHoneywell Spartanburg | Duncan | SC | Transportation Equipment Manufacturing336320 | — | ◇ UNVERIFIED |
| HMHubner Mfg | Mt Pleasant | SC | Leather and Allied Product Manufacturing316110 | — | ◇ UNVERIFIED |
| HOHusqvarna Outdoor Products | Orangeburg | SC | Fabricated Metal Product Manufacturing332216 | — | ◇ UNVERIFIED |
| HCHydro Conduit LLC | Aynor | SC | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| IGIac Greenville LLC | Greenville | SC | Textile Product Mills314110 | — | ◇ UNVERIFIED |
| IRIfa Rotorion | Summerville | SC | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| ISIfco Systems North America | Gray Court | SC | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| IAIljin America CORP | Greer | SC | Fabricated Metal Product Manufacturing332991 | — | ◇ UNVERIFIED |
| IDImt Duncan LLC | Duncan | SC | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| IUIna USA Corporation Plant Iv | Spartanburg | SC | Fabricated Metal Product Manufacturing332991 | — | ◇ UNVERIFIED |
| IMIndustrial Maintenence & Services of Belton INC | Belton | SC | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| IMIndustrial Minerals | Kings Creek | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| IUIneos US Chemicals Company | Wando | SC | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| ILInnophos LLC | Green Pond | SC | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| ITIntelicoat Technologies-closed | Spartanburg | SC | Plastics and Rubber Products Manufacturing326130 | — | ◇ UNVERIFIED |
| ISInterkraft Sc LLC | White Stone | SC | Textile Mills313210 | — | ◇ UNVERIFIED |
| IBInterstate Brands CORP - Closed | Florence | SC | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| IPIntertape Polymer CORP | Columbia | SC | Paper Manufacturing322220 | — | ◇ UNVERIFIED |
| IBIp Biomass, INC. | Allendale | SC | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| ICIsochem Colors INC | Clover | SC | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| JAJacobs Applied Tech: Goose Creek | Goose Creek | SC | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| JCJacobs Chuck Manufacturing Company Incorporated | Clemson | SC | Machinery Manufacturing333512 | — | ◇ UNVERIFIED |
| JRJames River Paper Company Incorporated | Darlington | SC | Paper Manufacturing322215 | — | ◇ UNVERIFIED |
| JPJasper Pellets LLC | Ridgeland | SC | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| JSJeffery Specialty Equipment CORP | Woodruff | SC | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| JNJoe-anne Narrow Fabrics | Chesterfield | SC | Textile Mills313220 | — | ◇ UNVERIFIED |
| JDJohn Deere Consumer Products | Greer | SC | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| JCJoslyn Clark Controls | Lancaster | SC | Electrical Equipment, Appliance & Component Manufacturing335314 | — | ◇ UNVERIFIED |
| KTKawashima Textile Usa, INC. | Lugoff | SC | Textile Mills313210 | — | ◇ UNVERIFIED |
| KLKeenfinity, LLC | Greer | SC | Computer and Electronic Product Manufacturing334310 | — | ◇ UNVERIFIED |
| KIKemet:fountain Inn | Fountain Inn | SC | Textile Mills313210 | — | ◇ UNVERIFIED |
| KKemet:greenwood-closed | Greenwood | SC | Computer and Electronic Product Manufacturing334414 | — | ◇ UNVERIFIED |
| KKemet:mauldin | Simpsonville | SC | Computer and Electronic Product Manufacturing334414 | — | ◇ UNVERIFIED |
| KAKing Asphalt Number 4 | Spartanburg | SC | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| KSKingstree South Kingstree Ind Wwf | Kingstree | SC | Textile Mills313210 | — | ◇ UNVERIFIED |
| KCKl - Chempak | Greenville | SC | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| KIKline Iron & Steel CO INC | Columbia | SC | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| KIKline Iron & Steel Co., INC. | West Columbia | SC | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| KRKnights Redi-mix Concrete Plant 2 | Walterboro | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KRKnight's Redi Mix Jedburg Plant 4 | Summerville | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KRKnights Redi-mix Midlands LLC Plant 6 Blythewood | Blythewood | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KCKohler CO. - Spartanburg Plant | Spartanburg | SC | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
| KAKomatsu America International CORP | Newberry | SC | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| KCKoyo Corporation of USA | Orangeburg | SC | Fabricated Metal Product Manufacturing332991 | — | ◇ UNVERIFIED |
| KMKrm Midlands LLC Irmo Plant 7 | Irmo | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KMKrm Midlands LLC Lexington Plant 9 | Lexington | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KMKrm Midlands LLC - Lugoff Plant 8 | Lugoff | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KMKrm Midlands LLC Pineview Plant 3 | North Charleston | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KMKrm Midlands, Llc-plant 8 | Lugoff | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KSKrm South LLC - Hardeeville Plant 16 | Hardeeville | SC | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
