| HOHengst of NA | Camden | 100–499 | ◐ LIKELY ACTIVE |
| IPIndustrial Performance Group of South Carolina, INC. | Bennettsville | 20–99 | ◐ LIKELY ACTIVE |
| JTJankel Tactical Systems LLC | Duncan | — | ◐ LIKELY ACTIVE |
| LMLockheed Martin Aeronautics Company | Greenville | — | ◐ LIKELY ACTIVE |
| MEMagna Energy Storage Systems USA 2186 | Spartanburg | 100–499 | ◐ LIKELY ACTIVE |
| MSMancor Sc Incorporated | Lugoff | 100–499 | ◐ LIKELY ACTIVE |
| NTNewman Technology South Carolina INC | Aiken | — | ◐ LIKELY ACTIVE |
| ODOshkosh Defense LLC | Spartanburg | — | ◐ LIKELY ACTIVE |
| PFPerformance Friction CORP | Clover | — | ◐ LIKELY ACTIVE |
| TBThe Boeing Company | Orangeburg | — | ◐ LIKELY ACTIVE |
| TBTidewater Boats LLC | Lexington | 100–499 | ◐ LIKELY ACTIVE |
| VPVtl Precision INC | Goose Creek | 20–99 | ◐ LIKELY ACTIVE |
| CMCarver Maritime, LLC | North Charleston | — | ◐ LIKELY ACTIVE |
| TITerminal Investment Corporation - Ridgeland | Ridgeland | — | ◐ LIKELY ACTIVE |
| AFAlfmeier Friedrichs & Rath LLC | Greenville | — | ◇ UNVERIFIED |
| ALAmerican Lafrance CORP | Ladson | — | ◇ UNVERIFIED |
| ATAnnex to Charleston Naval Complex | N Charleston | — | ◇ UNVERIFIED |
| BSBae Systems | Aiken | — | ◇ UNVERIFIED |
| BHBehr Heat Transfer Systems INC | Charleston | — | ◇ UNVERIFIED |
| BMBluewater Marine Group Plant 2 | Newberry | — | ◇ UNVERIFIED |
| BBBosch Braking Systems | Sumter | — | ◇ UNVERIFIED |
 Carolina Composites LLC | Harleyville | — | ◇ UNVERIFIED |
| CMCaterpillar Mcqueen Facility | Summerville | — | ◇ UNVERIFIED |
| CLChampion Laboratories INC | York | — | ◇ UNVERIFIED |
| COConfluence Outdoor Incorporated | Greenville | — | ◇ UNVERIFIED |
| DSDetyens Shipyards Incorporated | Mount Pleasant | — | ◇ UNVERIFIED |
| ENEberspacher North America | Greenville | — | ◇ UNVERIFIED |
| FMFederal Mogul:orangeburg | Orangeburg | — | ◇ UNVERIFIED |
| GAGkn Aerospace South Carolina | Orangeburg | — | ◇ UNVERIFIED |
| GTGriffin Thermal Products | Piedmont | — | ◇ UNVERIFIED |
| HAH&l Accessory | Greer | — | ◇ UNVERIFIED |
| HSHoneywell Spartanburg | Duncan | — | ◇ UNVERIFIED |
| IRIfa Rotorion | Summerville | — | ◇ UNVERIFIED |
| LBLegacy Boat Company Incorporated | Charleston | — | ◇ UNVERIFIED |
| MMeritor | York | — | ◇ UNVERIFIED |
| MAMonroe Auto Equipment Company | Anderson | — | ◇ UNVERIFIED |
| OEOpmobility Exterior Usa, LLC | Duncan | — | ◇ UNVERIFIED |
| PCPenn Craft LLC | Dorchester | — | ◇ UNVERIFIED |
| PRPhoenix Racing INC | Spartanburg | — | ◇ UNVERIFIED |
| PGProterra Greenville Battery Factory | Greer | — | ◇ UNVERIFIED |
| SHSea Hunt Boat- Closed | Lexington | — | ◇ UNVERIFIED |
| SDSiemens Diesel Systems Technology | Blythewood | — | ◇ UNVERIFIED |
| SCSouth Carolina Yutaka Technologies | Lugoff | — | ◇ UNVERIFIED |
| SCSpx Corporation | Lugoff | — | ◇ UNVERIFIED |
| TRTakata Restraint Systems Incorporated | Cheraw | — | ◇ UNVERIFIED |
| TCTamper Corporation | West Columbia | — | ◇ UNVERIFIED |
| TBThe Boeing Company - Boeing South Carolina (airport Campus) | North Charleston | — | ◇ UNVERIFIED |
| TBTidewater Boats, LLC | Lexington | — | ◇ UNVERIFIED |
| UCUS Coast Guard Charleston | Charleston | — | ◇ UNVERIFIED |
| ZSZeuna Starker USA Incorporated | Spartanburg | — | ◇ UNVERIFIED |
