| TUTimken US Corporation Tyger River Plant | Union | — | ◐ LIKELY ACTIVE |
| BTBoiler Tube CO of America Wellford Facility | Wellford | — | ◇ UNVERIFIED |
| CWCatoe's Welding & Fabrication INC | Rock Hill | — | ◇ UNVERIFIED |
| CICrane Instrumentation & Samplying, Hoke | Spartanburg | — | ◇ UNVERIFIED |
| DADenkai America INC | Camden | — | ◇ UNVERIFIED |
| EEE&i Engineering USA CORP | Anderson | — | ◇ UNVERIFIED |
Electro-spec INC | Lexington | — | ◇ UNVERIFIED |
| IKInternational Knife & Saw Incorporated | Florence | — | ◇ UNVERIFIED |
| KBKoyo Bearings USA LLC | Walhalla | — | ◇ UNVERIFIED |
| NBNucor Building Systems | Swansea | — | ◇ UNVERIFIED |
| SASouth Atlantic Galvanizing | Travelers Rest | — | ◇ UNVERIFIED |
| SCSouth Carolina Industrial Holdings Metro | West Columbia | — | ◇ UNVERIFIED |
| SWStanley Works INC Tools Div | Cheraw | — | ◇ UNVERIFIED |
| SCStarflo Corporation | Orangeburg | — | ◇ UNVERIFIED |
| TCTimken CO Gaffney Bearing Plant | Gaffney | — | ◇ UNVERIFIED |
| TUTimken US CORP Honea Path | Honea Path | — | ◇ UNVERIFIED |
| THTrinity Highway Products LLC | Orangeburg | — | ◇ UNVERIFIED |
| TTruecore | Laurens | — | ◇ UNVERIFIED |
| VCValmont Columbia Galvanizing INC | West Columbia | — | ◇ UNVERIFIED |
Cdid LLC | North Charleston | — | ◐ LIKELY ACTIVE |
Lown Performance LLC | West Columbia | — | ◐ LIKELY ACTIVE |
| NCNexgen Composites LLC | Summerville | 20–99 | ▲ REPORTED CLOSED |
| AIAalberts Integrated Piping Systems Americas, Inc. - Pearl Street Facility | Pageland | 100–499 | ◐ LIKELY ACTIVE |
| ASAalberts Surface Technologies Fairforest, INC. | Greenville | — | ◐ LIKELY ACTIVE |
| ABA. Berger, INC | Spartanburg | — | ◐ LIKELY ACTIVE |
| ATApex Tool Group - Sumter | Sumter | 20–99 | ◐ LIKELY ACTIVE |
Basin Material Handling SC | Easley | 20–99 | ◐ LIKELY ACTIVE |
| BPB&b Plating of Belton LLC | Belton | — | ◐ LIKELY ACTIVE |
Chief Industries Inc Buildings SC | Lancaster | 20–99 | ◐ LIKELY ACTIVE |
| CTCogsdill Tool Products INC | Lugoff | — | ◐ LIKELY ACTIVE |
| CBConstantia Blythewood LLC | Blythewood | 100–499 | ◐ LIKELY ACTIVE |
| CCCrown Cork & Seal Usa, Lnc. - Effingham | Effingham | — | ◐ LIKELY ACTIVE |
| CMCustom Machine & Design INC | Myrtle Beach | — | ◐ LIKELY ACTIVE |
| DMDc Machine LLC | Summerville | 20–99 | ◐ LIKELY ACTIVE |
| EKExecutive Kitchens | Simpsonville | — | ◐ LIKELY ACTIVE |
| FCFirst Cut Design & Fabrication INC | Richburg | — | ◐ LIKELY ACTIVE |
| FSFlame Spray North America INC | Fountain Inn | — | ◐ LIKELY ACTIVE |
| FAFlextronics America, LLC | Orangeburg | 500+ | ◐ LIKELY ACTIVE |
| GIGreenfield Industries INC | Seneca | 100–499 | ◐ LIKELY ACTIVE |
| HAHess America | Gaffney | — | ◐ LIKELY ACTIVE |
| HPHi-tec Plating INC | Seneca | — | ◐ LIKELY ACTIVE |
| IImagepoint:columbia | Columbia | — | ◐ LIKELY ACTIVE |
| ILInterflex LLC | Spartanburg | — | ◐ LIKELY ACTIVE |
| JBJtekt Bearings North Amerca LLC | West Union | 100–499 | ◐ LIKELY ACTIVE |
| JNJTEKT North America | Blythewood | 500+ | ◐ LIKELY ACTIVE |
| KCKaydon Corporation | Sumter | — | ◐ LIKELY ACTIVE |
| LMLang Mekra North America LLC | Ridgeway | — | ◐ LIKELY ACTIVE |
| LCLatitude CORP | Manning | 100–499 | ◐ LIKELY ACTIVE |
| LMLeatherwood Manufacturing INC | North Charleston | — | ◐ LIKELY ACTIVE |
| LLLinde Lift Truck Corporation | Summerville | — | ◐ LIKELY ACTIVE |