Mclaughlin Body Company INC | Anderson | 20–99 | ◐ LIKELY ACTIVE |
| NCNexgen Composites LLC | Summerville | 20–99 | ▲ REPORTED CLOSED |
| OBOldcastle Building Envelope | Rock Hill | 100–499 | ◐ LIKELY ACTIVE |
| PUPierburg US LLC | Fountain Inn | 100–499 | ◐ LIKELY ACTIVE |
| PMPol-tech Machining, LLC | Woodruff | 1–19 | ▲ REPORTED CLOSED |
| RBRexam Beverage Can Company | Bishopville | — | ◐ LIKELY ACTIVE |
| RFRmf Facility Piedmont | Piedmont | — | ◐ LIKELY ACTIVE |
| RMRoy Metal Finishing RMF2 | Greenville | 1–19 | ◐ LIKELY ACTIVE |
| SGSchaeffler Group USA INC - Plant I I | Cheraw | 100–499 | ◐ LIKELY ACTIVE |
| SJSmi Joist:cayce | Cayce | — | ◐ LIKELY ACTIVE |
| SASouth Atlantic LLC Dba South Atlantic Ga | Laurens | — | ◐ LIKELY ACTIVE |
| SSSpirax Sarco Incorporated | Blythewood | 500+ | ◐ LIKELY ACTIVE |
| SOSteelworks of the Carolinas, INC. | Piedmont | 20–99 | ◐ LIKELY ACTIVE |
| WCWatts Chesnee - Closed | Chesnee | — | ◐ LIKELY ACTIVE |
| BTBoiler Tube CO of America Wellford Facility | Wellford | — | ◐ LIKELY ACTIVE |
| CWCatoe's Welding & Fabrication INC | Rock Hill | — | ◐ LIKELY ACTIVE |
| CICrane Instrumentation & Samplying, Hoke | Spartanburg | — | ◐ LIKELY ACTIVE |
| CBCrown Beverage Packaging | Cheraw | — | ◐ LIKELY ACTIVE |
| EEE&i Engineering USA CORP | Anderson | — | ◐ LIKELY ACTIVE |
Electro-spec INC | Lexington | — | ◐ LIKELY ACTIVE |
| GCGoodrich Corporation Turbine Component Service | Hodges | — | ◐ LIKELY ACTIVE |
| KBKoyo Bearings USA LLC | Walhalla | — | ◐ LIKELY ACTIVE |
| MMMeco Metal Finishing | Rock Hill | — | ◐ LIKELY ACTIVE |
Meyer Utility Structures LLC Plant 1665 | Lancaster | — | ◐ LIKELY ACTIVE |
| NBNucor Building Systems | Swansea | — | ◐ LIKELY ACTIVE |
Pegasus Steel | Ladson | — | ◐ LIKELY ACTIVE |
| SUSkf USA INC | Sumter | — | ◐ LIKELY ACTIVE |
| SASouth Atlantic Galvanizing | Travelers Rest | — | ◐ LIKELY ACTIVE |
| SCSouth Carolina Industrial Holdings Metro | West Columbia | — | ◐ LIKELY ACTIVE |
| SCStarflo Corporation | Orangeburg | — | ◐ LIKELY ACTIVE |
| TUTimken US CORP Honea Path | Honea Path | — | ◐ LIKELY ACTIVE |
| TUTimken US Corporation Tyger River Plant | Union | — | ◐ LIKELY ACTIVE |
| THTrinity Highway Products LLC | Orangeburg | — | ◐ LIKELY ACTIVE |
| TTruecore | Laurens | — | ◐ LIKELY ACTIVE |
| VCValmont Columbia Galvanizing INC | West Columbia | — | ◐ LIKELY ACTIVE |
| SWStanley Works INC Tools Div | Cheraw | — | ◇ UNVERIFIED |
| TCTimken CO Gaffney Bearing Plant | Gaffney | — | ◇ UNVERIFIED |
| 7M72612 - Master Machine Works INC | Spartanburg | 20–99 | ◐ LIKELY ACTIVE |
Advanced Manufacturing Products LLP | Spartanburg | — | ◐ LIKELY ACTIVE |
| BPB&b Plating of Belton LLC | Belton | 20–99 | ◐ LIKELY ACTIVE |
Cdid LLC | North Charleston | — | ◐ LIKELY ACTIVE |
| CTCogsdill Tool Products INC | Lugoff | 20–99 | ◐ LIKELY ACTIVE |
Davis Restraint Systems INC | Andrews | — | ◐ LIKELY ACTIVE |
| GVGoetze Valves NA INC | Fort Mill | — | ◐ LIKELY ACTIVE |
| HIHansen International Inc | Lexington | 20–99 | ◐ LIKELY ACTIVE |
Lown Performance LLC | West Columbia | — | ◐ LIKELY ACTIVE |
| RDRapid Deployable Systems, INC. | Hanahan | — | ▲ REPORTED CLOSED |
| SMSargent Metal | Anderson | 100–499 | ◐ LIKELY ACTIVE |
| TMTate Metalworks INC | Roebuck | 20–99 | ◐ LIKELY ACTIVE |
| UMUshers Machine and Tool Co., INC. | Greenville | 20–99 | ◐ LIKELY ACTIVE |