| M & R GRANITE CO INCSpartanburg, SC | 84066 | 1 |
| M B KAHN CONSTRUCTION CO INCColumbia, SC | 122181 | 1 |
| M K TRANSPORT LLCSpartanburg, SC | 2102278 | 1 |
| M42 CORPSummerville, SC | 4550637 | 3 |
| MA TRUCKING LLCInman, SC | 1497120 | 1 |
| MACNIFICENT LOGISTICS LLCCharleston, SC | 4035848 | 1 |
| MALPHRUS TRUCKING LLCRuffin, SC | 3469369 | 4 |
| MANCE & SONS LOGISTICS LLCTrenton, SC | 3745372 | 2 |
| MANLEY TRUCKING LLCAnderson, SC | 3295234 | 1 |
| MANTARAY LOGISTICS LLCFort Mill, SC | 4050179 | 3 |
| MAPLE'S EXPRESS DELIVERY SERVICES LLCBlythewood, SC | 3499008 | 2 |
| MARSHALL LANE TRUCKING LLCWalterboro, SC | 3101361 | 1 |
| MARZ TRUCKING LLCSumter, SC | 4250220 | 1 |
| MASTIFF TRANSPORTATION LTD COMPANYBoiling Springs, SC | 4406070 | 4 |
| MAXWOOD FURNITURE INCMarion, SC | 3919983 | 8 |
| MAYRANT TRANSPORTATION LLCWest Columbia, SC | 4370860 | 2 |
| MCDANIEL TRUCKING AKA LLCColumbia, SC | 2506351 | 3 |
| MCGREGOR TRANSPORTATION LLCEasley, SC | 4472108 | 1 |
| MCKAY TRUCKING LLCLatta, SC | 1977318 | 1 |
| MCKENZIE FARM SERVICES INCKingstree, SC | 369975 | 15 |
| MCKENZIE LOGISTICS LLCAwendaw, SC | 2489579 | 35 |
| MD HILLIARD TRANSPORT LLCLancaster, SC | 2427825 | 2 |
| MERRILL TRANSPORT LLCDarlington, SC | 2187208 | 1 |
| METAL TRADES INCYonges Island, SC | 84160 | 2 |
| MEZA LOGISTIC LLCLexington, SC | 3273337 | 3 |
| MICHAEL MITCHELL LLCCharleston, SC | 4560065 | 1 |
| MID-EASTERN LEASING LLCBowman, SC | 4491726 | 1 |
| MIDNIGHT TRANSPORT INCColumbia, SC | 1159924 | 2 |
| MILEMAX LLCMyrtle Beach, SC | 4462423 | 5 |
| MILES AHEAD LOGISTICS LLCSummerville, SC | 4334603 | 1 |
| MILLER'S OF COLUMBIA INCColumbia, SC | 440373 | 2 |
| MISTER FERGUSON LLCWoodruff, SC | 4422964 | 1 |
| MISTER WINDOWS LLCGreenville, SC | 4083790 | 1 |
| MISTY EXPRESS LLCDarlington, SC | 4299109 | 1 |
| MIXON SEED SERVICE INCOrangeburg, SC | 3373925 | 5 |
| MJBELK LLCLancaster, SC | 3433226 | 3 |
| MJN ENTERPRISES LLCGreenville, SC | 2423691 | 5 |
| MJW TRUCKING LLCSummerville, SC | 3424291 | 3 |
| MK EXPRESS TRANSPORTATION LLCAnderson, SC | 4242101 | 2 |
| MMM ACQUISITIONS LLCFort Mill, SC | 4358611 | 4 |
| MO TRUCKING LLCRidgeway, SC | 2527517 | 62 |
| MODERN TRANSPORT LLCRidge Spring, SC | 4177414 | 1 |
| MONTOYA TRUCKING LLCColumbia, SC | 3312173 | 1 |
| MOODY HAULING & SERVICES LLCDarlington, SC | 4095005 | 1 |
| MORE THAN ENOUGH FREIGHT LLCIrmo, SC | 3785153 | 6 |
| MORRIS AND SON TRUCKING LLCSumter, SC | 3432362 | 1 |
| MOUNT OLIVE TRANSPORTATION LLCTega Cay, SC | 3097823 | 2 |
| MOVEMART RELOCATION INCColumbia, SC | 787737 | 8 |
| MR FOSTER TRANSPORT COMPANY LLCFlorence, SC | 3935517 | 1 |
| MR&J ENTERPRISES LLCLexington, SC | 4296927 | 18 |
| MRL TRANSPORT LLCYork, SC | 1152036 | 5 |
| MRX TRANSPORT SVC'S LLCRock Hill, SC | 2952601 | 1 |
| MV CARRIER LLCInman, SC | 3465428 | 1 |
| MY GRACE-N-LIGHT LOGISTICS LLCColumbia, SC | 3874940 | 2 |