 Palmetto Vermiculite, INC. | Woodruff | — | ● ACTIVE |
| CSConcrete Supply CO LLC Spartanburg | Spartanburg | — | ◇ UNVERIFIED |
| BSBrdm Sandlapper Concrete Llc-duncan | Duncan | — | ◐ LIKELY ACTIVE |
| NSNorfolk Southern Railway | Spartanburg | — | ◐ LIKELY ACTIVE |
| TCThomas Concrete of South Carolina - Cowpens | Cowpens | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC - Hwy 101 | Greer | — | ◐ LIKELY ACTIVE |
| GCGsp Concrete LLC | Duncan | — | ◐ LIKELY ACTIVE |
| PCPiedmont Concrete Products Incorporated Duncan | Duncan | — | ◐ LIKELY ACTIVE |
| VCVulcan Construction Material Limited Partnership Pacolet Quarry | Pacolet | — | ◐ LIKELY ACTIVE |
| AJA J Equipment Company Duncan | Duncan | — | ◇ UNVERIFIED |
| CCChapman Concrete Products Incorporated | Spartanburg | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC Landrum | Landrum | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC - Spartanburg National | Spartanburg | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC - Spartan Ent Temp | Spartanburg | — | ◇ UNVERIFIED |
| MIMetrocon Inman Plant | Inman | — | ◇ UNVERIFIED |
| PCPiedmont Concrete:spartanburg | Spartanburg | — | ◇ UNVERIFIED |
| RRReflective Recycling of Sc LLC | Pacolet | — | ◇ UNVERIFIED |
| TCThomas Concrete of South Carolina INC Moore Plant | Moore | — | ◇ UNVERIFIED |
| TCThomas Concrete of South Carolina Spartanburg Plt | Spartanburg | — | ◇ UNVERIFIED |
| TCThomas Concrete of South Carolina Tissue Plant | Spartanburg | — | ◇ UNVERIFIED |
| TCTindall Corp-sc Division | Fairforest | — | ◇ UNVERIFIED |
| SSpartanburg | Spartanburg | 100–499 | ◐ LIKELY ACTIVE |
| TCTindall Corporation | Spartanburg | 20–99 | ◐ LIKELY ACTIVE |
| TCTindall Corporation - Infrastructures | Spartanburg | 100–499 | ◐ LIKELY ACTIVE |
| TCTindall Corporation - South Carolina Division | Spartanburg | 100–499 | ◐ LIKELY ACTIVE |
| BRBluedot Ready Mix-duncan (plant #111) | Duncan | — | ◇ UNVERIFIED |
| CSConcrete Supply Co., LLC - Greer Portable | Greer | — | ◇ UNVERIFIED |
| EPExeter Portable | Spartanburg | — | ◇ UNVERIFIED |
| FPFort Prince Portable | Wellford | — | ◇ UNVERIFIED |
| PVPalmetto Vermiculite | Woodruff | — | ◇ UNVERIFIED |
| PCPatriot Concrete Project Emerald Plant #1 | Spartanburg | — | ◇ UNVERIFIED |
| PCPiedmont Concrete Products INC - Spartanburg Plant | Spartanburg | — | ◇ UNVERIFIED |
| SSStevenson-weir Southern - Spartanburg Plant | Wellford | — | ◇ UNVERIFIED |
| TCThomas Concrete Cowpens | Cowpens | — | ◇ UNVERIFIED |
| TCThomas Concrete of South Carolina INC - Spartanburg New Cut | Spartanburg | — | ◇ UNVERIFIED |
| TCThomas Concrete of South Carolina Upstate Portable Plant 01 | Spartanburg | — | ◇ UNVERIFIED |
| VTVan Trust Portable | Roebuck | — | ◇ UNVERIFIED |
