| MPMaclean Power Systems - Newberry Plant | Newberry | 100–499 | ● ACTIVE |
| RGResonac Graphite America Inc.130130 | Ridgeville | 100–499 | ● ACTIVE |
Daedalus Industrial LLC | Easley | 100–499 | ● ACTIVE |
Maddox Industrial Transformer, LLC | Greer | — | ● ACTIVE |
Meiden America Switchgear, INC | Gray Court | 20–99 | ● ACTIVE |
National Electrical Carbon Products, INC. | Greenville | — | ● ACTIVE |
| AIAdvanced Innovative Consulting Team, LLC | Mount Pleasant | — | ● ACTIVE |
America Fujikura LTD. | Duncan | — | ● ACTIVE |
American Air & Water INC | Hilton Head Island | — | ● ACTIVE |
Batteries INC. | Bluffton | — | ● ACTIVE |
Carolina Power Systems of Sumter INC | Sumter | — | ● ACTIVE |
| DPDiversified Products Group LLC | Greenville | — | ● ACTIVE |
E. W. P. Group, INC. | Fort Mill | — | ● ACTIVE |
Exodus Industries LLC | Piedmont | — | ● ACTIVE |
Jameson LLC | Clover | — | ● ACTIVE |
Laser Safety Systems LLC | Johns Island | — | ● ACTIVE |
Leathernex Contracting LLC | Honea Path | — | ● ACTIVE |
Ls Mechanical Sc LLC | Summerville | — | ● ACTIVE |
| RLRelia-tek, LLC | Charleston | — | ● ACTIVE |
Sequence Engineering, LLC | Spartanburg | — | ● ACTIVE |
Skylox LLC | Greenville | — | ● ACTIVE |
Willin Solutions LLC | Charleston | — | ● ACTIVE |
| HRHitachi Rail Sts USA INC | Batesburg | 100–499 | ◐ LIKELY ACTIVE |
| PPPrysmian Power Cables and Systems Usa, LLC | Abbeville | 20–99 | ◐ LIKELY ACTIVE |
| ATAfl Telecommunications 110 Hidden Lake Facility | Duncan | — | ◐ LIKELY ACTIVE |
| EHElectrolux Home Prods | Anderson | — | ◐ LIKELY ACTIVE |
| NHNexans High Voltage USA INC | Goose Creek | 100–499 | ◐ LIKELY ACTIVE |
| SESchneider Electric | Seneca | 500+ | ◐ LIKELY ACTIVE |
| CLClarios LLC - Distribution Center | Florence | — | ◐ LIKELY ACTIVE |
| ATAfl Telecommunications LLC | Duncan | — | ◇ UNVERIFIED |
| ATAfl Telecommunications LLC | Duncan | — | ◇ UNVERIFIED |
| CPCooper Power Systems | Greenwood | — | ◇ UNVERIFIED |
| CHCulter Hammer-pcso Division | Greenwood | — | ◇ UNVERIFIED |
| CHCutler Hammer Greenwood | Greenwood | — | ◇ UNVERIFIED |
| SESchneider Electric | Seneca | — | ◇ UNVERIFIED |
| SDSquare D Company | Hopkins | — | ◇ UNVERIFIED |
Struthers-dunn INC. | Timmonsville | — | ◐ LIKELY ACTIVE |
Thermo Heating Elements LLC | Piedmont | — | ◐ LIKELY ACTIVE |
| 1H110 Hidden Lake | Duncan | 100–499 | ◐ LIKELY ACTIVE |
| BRBroad River Regional Wwtp | Columbia | — | ◐ LIKELY ACTIVE |
| HLHidden Lake | Duncan | 100–499 | ◐ LIKELY ACTIVE |
| HRHowell Road | Duncan | 1–19 | ◐ LIKELY ACTIVE |
| KOKra Operations, LLC | Prosperity | 100–499 | ◐ LIKELY ACTIVE |
| SISiemens Industry Inc - Roebuck | Roebuck | 500+ | ◐ LIKELY ACTIVE |
| TCTeijin Carbon America, INC. | Greenwood | — | ◐ LIKELY ACTIVE |
| TUThe Urban Electric Company | North Charleston | 100–499 | ◐ LIKELY ACTIVE |
| TUThe Urban Electric Company - Arc | Charleston | — | ◐ LIKELY ACTIVE |
| WEWoven Electronics, LLC | Simpsonville | — | ◐ LIKELY ACTIVE |
| CTCore Transformers, LLC | Seneca | — | ◐ LIKELY ACTIVE |
| ECExide Corporation | Greer | — | ◐ LIKELY ACTIVE |