| IDImt Duncan LLC | Duncan | SC | Fabricated Metal Product Manufacturing332811 | 20-99 | ◇ UNVERIFIED |
| ESEngelhard Surface Technologies | Duncan | SC | Beverage and Tobacco Product Manufacturing312230 | — | ◇ UNVERIFIED |
| HMHayssen Manufacturing Company | Duncan | SC | Fabricated Metal Product Manufacturing332410 | — | ◇ UNVERIFIED |
| HCHemmelrath Coatings INC | Duncan | SC | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| HSHoneywell Spartanburg | Duncan | SC | Transportation Equipment Manufacturing336320 | — | ◇ UNVERIFIED |
| OEOpmobility Exterior Usa, LLC | Duncan | SC | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| WWastequip/lm | Duncan | SC | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| 1U115 Usac Drive | Duncan | SC | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| ATAmamco Tool & Supply CO INC | Duncan | SC | Machinery Manufacturing333512 | — | ◇ UNVERIFIED |
| BRBluedot Ready Mix-duncan (plant #111) | Duncan | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BSBrenntag Southeast INC | Duncan | SC | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
 Crane 1 Services | Duncan | SC | Machinery Manufacturing333923 | — | ◇ UNVERIFIED |
| JDJocassee Designs | Duncan | SC | Textile Product Mills314999 | — | ◇ UNVERIFIED |
| MMichelin:duncan | Duncan | SC | Plastics and Rubber Products Manufacturing326211 | — | ◇ UNVERIFIED |
| PSPlasman Sc INC | Duncan | SC | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| SISiemens Industry INC -scc Enterprise Campus Authority '94 Warehouse | Duncan | SC | Electrical Equipment, Appliance & Component Manufacturing335313 | — | ◇ UNVERIFIED |
| SCSloan Construction:#14-closed | Duncan | SC | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SCSloan Construction Company INC | Duncan | SC | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| UTUnited Tool & Mold INC | Duncan | SC | Machinery Manufacturing333511 | — | ◇ UNVERIFIED |
| WMWyoming Machine, LLC | Duncan | SC | Machinery Manufacturing333519 | — | ◇ UNVERIFIED |
