| S & J ELITE TRANSPORT LLCCharleston, SC | 3980658 | 3 |
| S & K SUPPLIES & LOGISTICS LLCWinnsboro, SC | 2168406 | 4 |
| S & P CONTAINER SERVICE LLCFlorence, SC | 2566310 | 12 |
| S & W TRUCKING SOLUTIONS LLCHolly Hill, SC | 2469333 | 1 |
| S C DUNN & SONS INCPickens, SC | 181445 | 2 |
| S C HUTCHINSON COMPANY INCColumbia, SC | 151094 | 1 |
| S MCDONALD TRUCKING LLCPageland, SC | 1723696 | 1 |
| S&J TRUCKING & LOGISTICS LLCEutawville, SC | 3002236 | 4 |
| S&R TRUCKING INCSpartanburg, SC | 2632390 | 2 |
| SADISCO OF SOUTH CAROLINA LLCFlorence, SC | 3045840 | 5 |
| SAND BOX TRUCKING LLCSummerville, SC | 3151010 | 1 |
| SASQUATCH TRANSPORT LLCRock Hill, SC | 4285726 | 1 |
| SCOGGINS TRUCKINGRock Hill, SC | 1610714 | 1 |
| SCOTT'S TRUCKING LLCLancaster, SC | 3510932 | 2 |
| SCURRY'S TRUCKING LLCSimpsonville, SC | 4416224 | 1 |
| SELF MADE LOGISTICS LLCSumter, SC | 2325788 | 1 |
| SELF-MADE TRANSPORT LLCLancaster, SC | 4032100 | 1 |
| SENAY TRANSPORTATION LLCColumbia, SC | 3146168 | 1 |
| SEND EXPRESS LLCGreenville, SC | 3482613 | 5 |
| SENN BROTHERS INCWest Columbia, SC | 112716 | 52 |
| SERAFIM LLCBoiling Springs, SC | 4452846 | 1 |
| SERVANT TRUCKING LLCNorth Charleston, SC | 1794713 | 9 |
| SG3 LOGISTICS LLCChesterfield, SC | 3835586 | 3 |
| SHANE PAUL D'AMICOCampobello, SC | 3210966 | 3 |
| SIGMA FREIGHT PARTNERS LLCSummerville, SC | 3499620 | 4 |
| SILVER ARROW LOGISTICS LLCGreenville, SC | 4313685 | 1 |
| SIMMONS ELITE TRANSPORT, LLCSummerville, SC | 7208998 | 4 |
| SKY'S THE LIMIT EXPRESS LLCLake City, SC | 2492117 | 1 |
| SKYLER TRANSPORTATION LLCLugoff, SC | 4304378 | 1 |
| SL EXPRESS LLCChesnee, SC | 3959609 | 2 |
| SLY ENTERPRISE LLCGreenville, SC | 3631388 | 2 |
| SMITH & WATERS INCHodges, SC | 63417 | 23 |
| SMITH DRAY LINE & STORAGE COMPANY INCGreenville, SC | 122024 | 56 |
| SMITH METAL & IRON CORock Hill, SC | 340745 | 7 |
| SMITH TRUCKING INCBowman, SC | 264036 | 73 |
| SNELL TRANSPORTATION LLCVance, SC | 3447040 | 1 |
| SOLID SOLUTION 360 LLCFountain Inn, SC | 3630115 | 1 |
| SOLUNI LLCLugoff, SC | 3351203 | 49 |
| SONOCO PRODUCTS COMPANYHartsville, SC | 112745 | 58 |
| SONOCO RECYCLING INCHartsville, SC | 211843 | 63 |
| SOUTHEAST FREIGHT LLCBatesburg, SC | 1269954 | 1 |
| SOUTHEASTERN CONCRETE PRODUCTS COMPANY INCCayce, SC | 212335 | 12 |
| SOUTHERN DREDGING CO INCCharleston, SC | 579309 | 1 |
| SOUTHWAY CRANE & RIGGING COLUMBIA LLCLexington, SC | 1049100 | 53 |
| SPANKY'S TRUCKING LLCChester, SC | 1334837 | 7 |
| SPECIAL MATERIALS COMPANYKershaw, SC | 1472900 | 25 |
| SPECIALTY DELIVERY & LOGISTICS INCFort Mill, SC | 882032 | 29 |
| SPEEDEX LOGISTICS LLCGreer, SC | 2078906 | 3 |
| SPEEDY CHICKEN TRANSPORTATION LLCFlorence, SC | 4527545 | 2 |
| SPINX TRANSPORTATION COMPANY INCPiedmont, SC | 917597 | 33 |
| SPMACK TRUCKING LLCClover, SC | 3720528 | 9 |
| SPRINTING DELIVERY SERVICE LLCLancaster, SC | 3471194 | 1 |
| SSSSD SOLUTION LLCDenmark, SC | 2273749 | 2 |
| STAN BROWN TRUCKING LLCHolly Hill, SC | 3376657 | 4 |
| STANDARD HAULING LLCDuncan, SC | 1909295 | 89 |
| STEVEN LANCE LOWE LLCChester, SC | 3702825 | 1 |
| STEVENSON WEIR SOUTHERN LLCRock Hill, SC | 1676368 | 193 |
| STONEWALL TRANSPORT LLCEdgemoor, SC | 4043051 | 1 |
| STRATAN INCChester, SC | 2969030 | 126 |
| SUA SPONTE TRANSPORTER LLCLexington, SC | 4517136 | 1 |
| SUCCESS TRUCKING LLCHopkins, SC | 4578018 | 1 |
| SUMMIT LOGISTICS INCN. Myrtle Beach, SC | 2834811 | 3 |
| SUMMIT PEAK GROUP LLCSummerville, SC | 4555524 | 4 |
| SUMTER TROLLEY TOURSSumter, SC | 2388844 | 1 |
| SUMTER WRECKER SERVICE INCSumter, SC | 523388 | 30 |
| SUNBELT CORPRock Hill, SC | 1528915 | 1 |
| SUNRISE EXPRESS LLCAnderson, SC | 1834993 | 5 |
| SUPERIOR BLACKTOP SERVICESSummerville, SC | 4090991 | 1 |
| SUPERIOR MACHINE COMPANY OF SC INCFlorence, SC | 112747 | 4 |
| SUPREME EXPRESS LLCGreenville, SC | 4001346 | 42 |
| SVS TRANS LLCBoiling Springs, SC | 1071374 | 1 |