| AGAmerican Gypsum Sc LLC | Georgetown | 100–499 | ● ACTIVE |
Ceramtec North America LLC | Laurens | — | ● ACTIVE |
| NSNucor Steel- Berkeley | Huger | 500+ | ● ACTIVE |
Palmetto Vermiculite, INC. | Woodruff | — | ● ACTIVE |
Metromont LLC | Greenville | — | ● ACTIVE |
| PMPaceast Management Group, LLC | Charleston | — | ● ACTIVE |
Rnm, LLC | Trenton | — | ● ACTIVE |
S.l. Munson & Company INC. | Columbia | — | ● ACTIVE |
| SCSoutheastern Concrete Products CO INC | Cayce | 20–99 | ◐ LIKELY ACTIVE |
| SWS & W Ready Mix Conway | Conway | 20–99 | ◐ LIKELY ACTIVE |
| AIAci Industries, LLC | Laurens | 20–99 | ◐ LIKELY ACTIVE |
Amrize Cement INC Holly Hill Plant | Holly Hill | — | ◐ LIKELY ACTIVE |
| CCCarolina Ceramics | Columbia | — | ◐ LIKELY ACTIVE |
| CICemplank INC | Summerville | — | ◐ LIKELY ACTIVE |
| CJChina Jushi USA Corporation | Columbia | 100–499 | ◐ LIKELY ACTIVE |
| CPConcrete Pipe & Precast LLC | Summerville | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC Blythewood | Blythewood | — | ◐ LIKELY ACTIVE |
| CCCore Concrete LLC | Lugoff | 20–99 | ◐ LIKELY ACTIVE |
| DNDimas North America | Columbia | — | ◐ LIKELY ACTIVE |
| HSHm Southeast Cement Llc/harleyville Site | Harleyville | — | ◐ LIKELY ACTIVE |
| ISInternational Steel Group | Georgetown | — | ◐ LIKELY ACTIVE |
| KRKnight Redi-mix Inc., - Plant 5 | North Charleston | — | ◐ LIKELY ACTIVE |
| NCNucor CORP - Darlington Plant | Darlington | — | ◐ LIKELY ACTIVE |
| OBOldcastle Building Envelope | Rock Hill | 100–499 | ◐ LIKELY ACTIVE |
| OROrangeburg Redi Mix Concrete INC | Orangeburg | 20–99 | ◐ LIKELY ACTIVE |
| OCOwens Corning Vetrotex LLC - Anderson Sc | Anderson | — | ◐ LIKELY ACTIVE |
| PBPalmetto Brick | Wallace | — | ◐ LIKELY ACTIVE |
| QCQuikrete Construction Materials, LLC - Harleyville Cement Plant | Harleyville | — | ◐ LIKELY ACTIVE |
| SCSoutheastern Concrete Products Upstate LLC | Simpsonville | 1–19 | ◐ LIKELY ACTIVE |
| BMBuilding Materials Manufacturing CORP | Chester | — | ◐ LIKELY ACTIVE |
| CCChapman Concrete Products INC Greer | Greer | — | ◐ LIKELY ACTIVE |
| CSCmc Steel Sc | Cayce | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC - Mauldin | Simpsonville | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO Llc-moncks Corner | Moncks Corner | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC West Columbia | West Columbia | — | ◐ LIKELY ACTIVE |
| HBHanson Brick Columbia Plant | Columbia | — | ◐ LIKELY ACTIVE |
| HCHardaway Concrete CO - Lexington | Lexington | — | ◐ LIKELY ACTIVE |
| KSKrm South, LLC - Plant 17 | Beaufort | — | ◐ LIKELY ACTIVE |
| MRMetromont:clemson Ready-mix Plant | Seneca | — | ◐ LIKELY ACTIVE |
| WWinyah | Georgetown | — | ◐ LIKELY ACTIVE |
| ACAmerican Concrete & Precast INC | Anderson | — | ◇ UNVERIFIED |
| ACAmerican Concrete & Precast INC | Greenville | — | ◇ UNVERIFIED |
| AAApac Atlantic Incorporated Georgetown Plant #678 | Georgetown | — | ◇ UNVERIFIED |
| AUArgos USA LLC Columbia Concrete Plant | Columbia | — | ◇ UNVERIFIED |
| CCCamden Concrete Number 3 | Lugoff | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC - Greenwood | Greenwood | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC Lancaster | Fort Mill | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC - Rock Hill | Rock Hill | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC - Shaw Plant | Sumter | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC South Myrtle Beach Plt | Myrtle Beach | — | ◇ UNVERIFIED |