If you click on a carrier the site will direct you to seperate page
with Information/Links/Patches for that carrier.
| Carrier Name | City | State | USDOT # | ICC MC #number | Status | Website |
|---|---|---|---|---|---|---|
| S & H Express | York | PA | 318756 | MC-210679 | Active | website |
| S & W Freight Lines Inc | Murfreesboro | TN | 36764 | MC-121644 | R 1998 | |
| S & W Motor Lines Inc | Greensboro | NC | 90873 | MC-040898 | R 1992 | |
| S & W Transports Inc | Velma | OK | 781511 | Not Authorized | ||
| S Coraluzzo Petroleum Transporters Co Inc | Vineland | NJ | 156123 | MC-042343 | Active | website |
| S J Transportation Co Inc | Woodstown | NJ | 154323 | MC-150546 | Active | website |
| S M Lorusso & Sons Inc | Walpole | MA | 348918 | none | Not Authorized | |
| S S Flegel Trucking Co | Prineville | OR | 158478 | MC-146231 | R 2001 | |
| S W Lines | Cedar Rapids | IA | N/A | |||
| SA & MH Johnson Inc | Alpine | CA | 665107 | MC-570347 | Active | |
| Safeway Truck Lines Inc | South Bend | IN | MC-110193 | I 1983 | ||
| Saginaw Transfer Co | Saginaw | MI | MC-055843 | P 1969 | ||
| SAIA Motor Freight Line Inc | Houme | LA | 29124 | MC-087511 | Active | website |
| Salas Trucking | W Covin | CA | 1406213 | MC-621383 | Not Authorized | |
| Salem Carriers Inc | Winston-Salem | NC | 229354 | MC-162239 | Active | |
| Salem Nationalease | Winston Salem | NC | 181069 | None | Not Authorized | |
| Salters Express Co | Simsbury | CT | 17537 | MC-038650 | Active | website |
| Sam Bowman Trucking Inc | Fremont | NE | Freemont | |||
| Sam Tanksley Trucking Inc | Cape Girardeau | MO | 77922 | MC-105566 | R 1990 | |
| Sam Young Inc | Wolcott | IN | 164143 | MC-143917 | R 1982 | |
| Sanborn's Motor Express Inc | Portland | ME | 126772 | MC-002770 | Sold 1986 | |
| Sands Refrigerated Transportation Inc | Brazil | IN | 367544 | MC-190423 | NAN | |
| Santa Fe Trail Transportation Co | Wichita | KS | 60137 | MC-030605 | R 1987 | |
| Santee Carriers Inc | Holly Hill | SC | MC-148080 | T 1994 | ||
| Sarah's Motor Express Inc | Lancaster | PA | 718130 | MC-331071 | R 2018 | |
| Sather Trucking Corp | Round Lake | MN | 75519 | MC-138283 | R 2008 | |
| Saulsbury Fire & Rescue Apparatus | Preble | NY | Unknown | |||
| Saunders Leasing System | Birmingham | AL | N/A | |||
| Sausalito Moving & Storage | Sausalito | CA | Unknown | |||
| Sawyer Transport | Chesterton | IN | 70808 | MC-123407 | R 1984 | |
| SCC Transportation Inc | Carmel | NY | Unknown | |||
| Schaffer Truck Lines | Hampton | MN | 1326953 | None | Not Authorized | |
| Schanno Transportation Inc | St. Paul | MN | 116479 | MC-134477 | R 2003 | |
| Scheduled Truckways Inc | Rogers | AR | 183847 | MC-150783 | R 1992 | |
| Schenck Transportation Co Inc | Long Island | NY | N/A | |||
| Scherer Freight Lines | Ottawa | IL | 13561 | MC-021571 | I 1983 | |
| Schilli Motor Lines Inc | Remington | IN | 293037 | MC-188697 | Inactive | |
| Schirmer Transportation Co | St Paul | MN | MC-103654 | R 1993 | ||
| Schmidt Truck Lines | Duluth | MN | N/A | |||
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website |
| Schneider National Bulk Carriers Inc | Green Bay | WI | 164311 | MC-143594 | Active | website |
| Schneider National Carriers Inc | Green Bay | WI | 264184 | MC-133655 | Active | website |
| Schneider Transport | Green Bay | WI | 46596 | MC-051146 | Active | website |
| Schneiders Transfer Inc | Morton | IL | N/A | |||
| Schroll Transportation Inc | East Hartford | CT | 17446 | MC-001485 | R 2010 | |
| Schultz Transit Inc | Winona | MN | 116326 | MC-118202 | R 1991 | |
| Schuster Co | Le Mars | IA | 69852 | MC-140125 | Active | website |
| Schuster Express Inc | Colchester | CT | 19326 | MC-108587 | Sold 1983 | |
| Schwerman Trucking Co | Milwaukee | WI | 46595 | MC-124078 | Active | website |
| Sciarretti Trucking | Homestead | PA | 1216856 | NONE | Active | website |
| Scott Interstate Transportation Inc | Plainfield | IL | Unknown | |||
| Scott Motor Transport Co | Bucksport | MO | 161988 | MC-133408 | D 1977 | |
| Scott Truck Line Inc | Denver | CO | 34333 | MC-123987 | R 2010 | |
| Scout Trucking Inc | Spring City | PA | 245019 | MC-168293 | R 1996 | |
| SCP Trucking Co Inc | Silver City | NC | N/A | |||
| Scully Transportation Services Inc | Fontana | CA | 648179 | MC-252020 | Inactive | |
| SDI | Olive Branch | MS | N/A | |||
| SDX | St Louis | MO | 226934 | MC-184262 | Inactive | |
| Sea Wheels Inc | Joppatowne | MD | 1383132 | MC-527712 | Inactive | |
| Seaboard Food Express | FL | N/A | ||||
| Seaboard Tank Lines Inc | Dunmore | PA | 38244 | MC-109443 | R 2004 | |
| Seabolt Transport | North McDonough | GA | 242981 | MC-263707 | R 2006 | |
| Seagrave Fire Appratus LLC | Clintonville | WI | Unknown | |||
| Seattle Transfer & Storage CO | Seattle | WA | MC-067020 | R 2009 | ||
| Seawater Trucking Inc | Perry | OK | 477867 | MC-238952 | Active | |
| Seawater Trucking Inc | Perry | OK | 477867 | MC-238952 | R 2020 | |
| Security Van Lines Inc | Kenner | LA | 2211733 | MC-130714 | Active | website |
| Seigle's Express Inc | Kearny | NJ | 19613 | MC-054200 | R 1997 | |
| Select Service Inc | Eighty Four | PA | Active | |||
| Semper Truck Lines Inc | Fresno | CA | 44123 | MC-408984 | R 2006 | |
| Senn Trucking Co | Newberry | SC | 63414 | MC-114552 | R 1993 | |
| Sentinel Transportation LLC | Wilmington | DE | 613084 | MC-294124 | Active | |
| Sentle Trucking Corp | Toledo | OH | 71666 | MC-109124 | R 1989 | |
| Sercombe Trucking Inc | Jackson | MI | 201894 | C-156727 | Active | |
| Service Express Inc | Tuscaloosa | AL | 105809 | MC-120910 | R 1999 | |
| Service Lines Inc | St Louis | MO | 153148 | MC-000879 | I 1983 | |
| Service Motor Freight Inc | Feura Bush | NY | Unknown | |||
| Service Transfer Inc | Wichita | KS | 60160 | MC-237499 | R 2003 | |
| Service Transport Co | Houston | TX | 229662 | MC-167776 | Active | website |
| Service Transport Inc | Nashville | TN | 129577 | MC-148392 | R 2005 | |
| Service Transport Lines Inc (STL) | Rock Island | IL | 104134 | MC-121236 | R 1998 | |
| Service Trucking Co Inc | Federalsburg | MD | MC-075185 | I 1983 | ||
| Seven Hills Transport | Cartersville | GA | 198662 | MC-156778 | Inactive | |
| Seward Motor Freight Inc | Seward | NE | 73148 | MC-085718 | Active | website |
| Seyller Transport Inc | Lake in the Hills | IL | 291481 | MC-188510 | R 2002 | |
| Shaffer Trucking Inc | New Kingstown | PA | 10691 | MC-126118 | T 1974 | |
| Shaker Group Inc | Katham | NY | 625028 | MC-298142 | Active | |
| Shamrock Transport Inc | Attleboro | MA | 682683 | MC-317681 | R 2001 | |
| Shamrock Van Lines Inc | San Jose | CA | Unknown | |||
| Shanahan's Express | Cinnaminson | NJ | 9013 | MC-28142 | D 1996 | |
| Shane Transport | Fresno | CA | 161213 | MC-148840 | Inactive | |
| Shanrock Truck Lines | San Jose | CA | 60741 | MC-121641 | ||
| Sharkey Transportation Inc | Quincy | IL | 55815 | MC-135598 | Active | website |
| Sharmax Freightlines Inc | San Diego | CA | 439697 | MC-158663 | R 1996 | |
| Sharp Transport Inc | Lawrenceburg | TN | 52970 | MC-148130 | Inactive | |
| Shaw Trucking | Oklahoma City | OK | N/A | |||
| Shaw Trucking Inc | Brockway | PA | Inactive | |||
| Shay's Service Inc | Dansville | NY | 15086 | MC-098017 | T 1986 | |
| Sheedy Drayage Co | San Francisco | CA | 60740 | MC-037771 | Active | website |
| Shein's Express | Trenton | NJ | MC-080504 | Sold 1964 | ||
| Shelba D Johnson Trucking Inc | High Point | NC | 273416 | MC-179973 | Inactive | |
| Shelton Brothers | Borger | TX | N/A | |||
| Shelton Trucking Service Inc | Altha | FL | 89970 | MC-124887 | Inactive | |
| Shenandoah Motor Express Inc | Versailles | OH | 228738 | MC-164820 | R 2004 | |
| Shepard's Express Inc | Leominster | MA | 106932 | MC-120888 | R 1998 | |
| Shepley Motor Express | Thornton | IL | 562841 | MC-129770 | Active | website |
| Sheppard Trucking | Hillsboro | OH | 1074618 | |||
| Sheppard Trucking Co Inc | Charleston | SC | N/A | |||
| Sherman Brothers Heavy Trucking | Harrisburg | OR | 12179 | MC-077061 | Active | website |
| Sherwood Van Lines Inc | San Antonio | TX | 136553 | MC-111823 | R 1995 | |
| Shipley Transport | Sykesville | MD | 222826 | MC-150973 | R 2022 | |
| Shippers Dispatch Inc | South Bend | IN | MC-072140 | mrg 1976 | ||
| Shippers Express Inc | Jackson | MS | 87862 | MC-066746 | Inactive | |
| Shippers Freight Lines | Cleveland | OH | 104022 | MC-098540 | R 1987 | |
| Shirks Motor Express | Lancaster | PA | MC-001658 | P 1957 | ||
| Shoemaker Trucking Co | Boise | ID | 62343 | MC-138875 | Inactive | |
| Shorewood Transport | Farmingdale | NY | 400824 | MC-160884 | R 2007 | |
| Short Freight Lines Inc | Bay City | MI | 72022 | MC-108382 | Active | website |
| Show Me Trucking | Harrison | MO | 639602 | MC-299207 | Active | website |
| Shull Transport LLC | Conover | NC | 285618 | MC-186471 | Inactive | |
| Shumaker Trucking Co | Dillsburg | PA | 350434 | MC-095813 | Inactive | |
| Shumpert Truck Lines Inc | Memphis | TN | MC-603 | Inactive | ||
| Shupe & Yost Inc | Greely | CO | 14555 | none | Inactive | |
| Sicomac Carriers Inc | Parsippany | NJ | 161359 | MC-144061 | R 2017 | |
| Sid Kamp Inc | Mokena | IN | 1727135 | MC-632913 | Active | website |
| Siefert Bros Trucking Co | DuQuoin | IL | 78523 | MC-126222 | R 2006 | |
| Sierra West Express | S[arks | NV | 483893 | MC-253427 | R 2006 | |
| Signal Delivery Service Inc | Hinsdale | IL | 104124 | MC-108393 | R 1987 | |
| Signal Trucking Service Ltd | Los Angeles | CA | 58961 | MC-000868 | R 1980 | |
| Silcon Trucking Co Inc | West Bridgewater | MA | 106937 | MC-034099 | Inactive | |
| Silicon Roadways Inc | Hayward | CA | 892706 | MC-388275 | Active | website |
| Silicone Roadways | Oakland | CA | 892706 | MC-388275 | Active | |
| Silvan Trucking Co Inc | Pendleton | IN | 70738 | MC-133314 | Active | |
| Silva's Express | Peabody | MA | 371007 | MC-205643 | Active | website |
| Silver Arrow Express Inc | Rockford | IL | 326561 | MC-188228 | Inactive | |
| Silver Dollar Express Inc | Long Beach | CA | 1003032 | 424104 | Inactive | |
| Silver Eagle Co | Portland | OR | 59664 | MC-032779 | R 2000 | |
| Silver Eagle Transport Inc | Jacksonville | FL | 265302 | MC-177515 | T 1998 | |
| Silver Fleet Motor Express Inc (The) | Louisville | KY | MC-040858 | |||
| Silver Wheels Freightlines Inc | Portland | OR | 59668 | MC-107576 | Clsd 1983 | |
| Silvey Refrigerated Carriers Inc | Omaha | NE | 53374 | MC-125951 | R 1990 | |
| Simser Truck Lines | Amity | PA | Unknown | |||
| Singer Interstate Carriers Inc | Hawthorne | NJ | 26184 | MC-119788 | R 1998 | |
| Single Source Transportation | Des Moines | IA | 98098 | MC-110567 | R 2015 | |
| Sioux Tank Lines Inc | Orange City | IA | 230708 | MC-166199 | Active | |
| Sioux Transportation Co Inc | Sioux City | IA | 69887 | MC-022301 | T 1984 | |
| Sisbro Inc | Quincy | IL | 264334 | MC-170410 | Active | website |
| Sitton Motor Lines Inc | Joplin | MO | 20567 | MC-147536 | R 2009 | |
| Sitton Transportation Inc | Beaumont | TX | 240483 | MC-171651 | R 2004 | |
| Skagit Valley Trucking Co Inc | Mount Vernon | WA | 321208 | NONE | Inactive | |
| Skinner Motor Express | Indianapolis | IN | C 1987 | |||
| Skinner Transfer Corp | Reedsburg | WI | 74466 | MC-109376 | Active | website |
| Skip Mckean Petroleum Transport Inc | Henniker | NH | 514249 | MC-168071 | Inactive | |
| Sky Bros Inc | Altoona | PA | N/A | |||
| Skyline Transportation Inc | Knoxville | TN | 41190 | MC-099208 | Not Authorized | |
| Slay Transportation | St Louis | MO | 77890 | MC-113325 | Active | website |
| Smalley Transportation Co | Tampa | FL | 2211686 | MC-121667 | T 1994 | |
| Smart & Final Transportation Inc | City of Commerce | CA | 420341 | MC-272510 | Active | website |
| Smiser Freight Service | South Gate | CA | 58965 | MC-120168 | R 1992 | |
| Smith & Solomon Trucking Co | New Brunswick | NJ | 43574 | MC-059264 | Clsd 1987 | |
| Smith and Waters Inc | Ware Shoals | SC | 63417 | MC-099735 | Active | website |
| Smith Brothers Trucking | Mt Airy | NC | 335551 | MC-188332 | R 2008 | |
| Smith Carriers Inc | Fairfield | NJ | 387615 | 175492 | Inactive | |
| Smith Terminal Warehouse Co | Miami | FL | 190620 | MC-140077 | R 2010 | |
| Smith Transport | Roaring Spring | PA | 246204 | MC-156598 | Active | website |
| Smith Transportation Co | Santa Maria | CA | 58764 | MC-085205 | R 1989 | |
| Smith Truck Lines | Leroy | NY | N/A | |||
| Smith's Transfer Corp | Staunton | VA | 84371 | MC-110683 | Sold1987 | |
| Smith's Truck Lines | Muncy | PA | N/A | |||
| Smithville Freight Lines Inc | Smithville | TN | 36769 | MC-98562 | T 1993 | |
| Smithway Motor Express Inc | Fort Dodge | IA | 1803 | MC-138627 | R 2010 | |
| SMX Transport Inc | Watertown | NY | 278457 | MC-188917 | R 1997 | |
| Smyth Greyhound Van Line Inc | Bellevue | WA | 117935 | MC-014786 | T 1981 | |
| Smyth Van Line Inc | Bellevue | WA | 117935 | MC-014786 | T 1981 | |
| Snyder Brothers Motor Freight | Akron | OH | 104025 | MC-003379 | FF<1980 | |
| Sodrel Truck Lines Inc | Jeffersonville | IN | 52294 | MC-283584 | AAN | |
| Solar Transport LC | West Des Moines | IA | 231451 | MC-154872 | Active | website |
| Sonic Transport | Brooksville | FL | 810876 | MC-359566 | Active | website |
| Sooner Freight Inc | Tulsa | OK | 271650 | MC-175301 | Inactive | |
| Sooner Freight Lines | Oklahoma City | OK | MC-000873 | Sold 1946 | ||
| Sooner Trucking & Oilfield Services Inc | County Line | OK | 788523 | MC-355332 | R 2009 | |
| Sorrento Express Inc | Buffalo | NY | 16606 | MC-168297 | R 2013 | |
| Sourdough Express | Fairbanks | AK | 125119 | MC-118527 | Active | website |
| South Eastern Express | Fort Worth | TX | 151679 | MC-118130 | F 1992 | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website |
| Southeastern Transport Inc | Marion | NC | 263935 | MC-172691 | R 2005 | |
| Southern Bulk Haulers Inc | Harleyville | SC | 63420 | MC-119560 | R 2004 | |
| Southern Express Inc | Spartanburg | NC | 209831 | MC-151803 | R 2000 | |
| Southern Freight Inc | Atlanta | GA | 226118 | MC-164944 | Inactive | |
| Southern Moving and Storage Co | San Antonio | TX | Active | website | ||
| Southern Pacific - Intermodal | Naperville | IL | 4175843 | Active | ||
| Southern Pacific Transport Co | Houston | TX | 79422 | MC-030319 | T 1983 | |
| Southern Refrigerated Transport Inc | Texarkana | AR | 276010 | MC-193849 | Inactive | |
| Southern Tank Lines Inc | Lansdowne | MD | MC-109637 | INN | ||
| Southern Tank Transport Inc | Holly Hill | SC | 548304 | MC-270785 | Active | website |
| Southern Transportation Inc | Charleston | SC | Unknown | |||
| Southern-Plaza Express | Dallas | TX | MC-010928 | FF<1980 | ||
| Southlake Tank Line Inc | Merrillville | IN | 571134 | MC-278656 | R 2001 | |
| Southland Transportation Co | Boonville | NC | 311711 | MC-199727 | Active | website |
| Southway Trucking Co | Hickory | NC | 218092 | MC-162864 | R 2000 | |
| Southwest Freightlines | El Paso | TX | 2239248 | MC-603837 | R 2008 | |
| Southwest Motor Freight | Chattanooga | TN | 58969 | MC-138157 | R 1990 | |
| Southwest Refrigerated Lines | Phoenix | AZ | 267289 | MC-188259 | R 1990 | |
| Southwestern Carriers | Saginaw | TX | 205159 | MC-144616 | R 2008 | |
| Southwestern Motor Transport Lines | San Antonio | TX | 136555 | MC-080252 | Active | website |
| Southwestern Transportation Co | Texarkana | TX | 79443 | MC-059488 | T 1981 | |
| Spade Trucking Inc | Spade | TX | 266919 | MC-331623 | Active | website |
| Sparling's Liquid Transport Inc (NA) | Marine City | MI | 567875 | MC-277549 | Unknown | |
| Spartan Express Inc | Greer | SC | 97090 | MC-062824 | Sold 2000 | |
| Special Delivery Xpress Inc | St. Louis | MO | 226934 | MC-184262 | Inacvite | |
| Special Service Transportation | Medina | OH | 104027 | MC-135653 | Inactive | |
| Speciality Carriers Inc | New Castle | DE | 453818 | MC-265327 | R 1997 | |
| Specialized Carriers Inc | Austin | TX | 22927 | MC-120633 | R 1984 | |
| Specialized Transport | Tampa | FL | 532930 | MC-215625 | R 2006 | |
| Specialized Transportation Services, Inc. | Smyrna | TN | 589549 | MC-284715 | Active | website |
| Specified Commodity Carriers Inc | Westminster | MD | 6862 | MC-112668 | Active | website |
| Spector Freight System - Viking Division | St Louis | MO | MC-035484 | mrg 1980 | ||
| Spector Freight System Inc | Chicago | IL | 76418 | MC-069116 | R 1995 | |
| Spector Freight System Inc (Mid-States) | Chicago | IL | 76418 | MC-069116 | R 1995 | |
| Spector Mid-States | Chicago | IL | N/A | |||
| Spector Red Ball | Chicago | IL | 76418 | MC-069116 | R 1995 | |
| Speedy Inc | Indianapolis | IN | 286429 | MC-157044 | R 1994 | |
| Spindler Bulk Transport Inc | Chester | NY | 26317 | Inactive | ||
| Spotswood Traiel Express | Chester Springs | PA | MC-723065 | Not found | ||
| Sprague Truck Service | Belleville | IL | 111878 | MC-011151 | R 1987 | |
| Spur Truck Line Inc | Houston | TX | 187930 | MC-153009 | R 1980 | |
| Squaw Transit Co | Beaumont | TX | 34342 | MC-119176 | R 1995 | |
| SS Trucking | West Des Moines | IA | 165735 | MC-00609800 | Inactive 2010 | |
| St Joseph Motor Lines | Atlanta | GA | N/A | |||
| St Lawrence Freightways Inc | Watertown | NY | 15096 | MC-007840 | R 1994 | |
| Stahly Cartage Co | Edwardsville | IL | 78492 | MC-119702 | R 2012 | |
| Stair Cargo Services Inc | Doral | FL | 2219204 | MC-172468 | Not Authorized | |
| Stallion Transportation Group | Beebe | AR | 741086 | MC-431903 | R 2004 | |
| Standard Forwarding Co | East Moline | IL | 1996747 | MC-016536 | Active | website |
| Standard Motor Freight Inc | Pittsburg | PA | 33173 | MC-016340 | R 1987 | |
| Standard Trucking Co | Charlotte | NC | 97197 | MC-039973 | Clsd 1994 | |
| Stan's Inc | Alpena | SD | 133844 | 133844 | Ani | |
| Stan's Transport | Charleston | SC | N/A | |||
| Star Freight Inc | Charlotte | NC | 281190 | MC-184260 | R 1998 | |
| Star Leasing Inc | Fayetteville | NC | 252936 | MC-175568 | Inactive | |
| Star Motor Freight Lines Inc | Colorado Springs | CO | 190217 | MC-190217 | R 2004 | |
| Star Transportation Inc | Nashville | TN | 222454 | MC-157677 | Active | website |
| Star Truck Rentals Inc | Grand Rapids | MI | 277071 | MC-210976 | Inactive 2022 | |
| State Transportation Inc | Portsmouth | NH | 169783 | MC-145895 | R 2008 | |
| Statewide Carriers LLC | Harrison | NJ | 1796889 | MC-727974 | Active | |
| Steel Haulers Inc | Kansas City | MO | 89087 | MC-119700 | Inactive | |
| Steelman Transportation Inc | Springfield | MO | 437506 | MC-222473 | Inactive | |
| Steere Tank Lines Inc | Dallas | TX | 66804 | MC-107064 | R 2001 | |
| Steffke Freight Co | Wausau | WI | MC-108586 | Sold 1975 | ||
| Stellar Express Inc | Green Bay | WI | 290280 | MC-172311 | Inactive | |
| Stephen Izzi Trucking & Rigging Inc | Edison | NJ | N/A | |||
| Stephens Truck Lines Inc | Webster | NY | MC-011899 | Not found | ||
| Sterling Cartage Co | St Paul | MN | MC-196388 | R 1998 | ||
| Sterling Transit Co Inc | Downet | CA | 58976 | MC-097382 | Clsd 1990 | |
| Sterling Transportation | Redmond | OR | 2212570 | MC-172007 | Active | |
| Steve Cagle Trucking Co | Huntsville | AL | 274079 | MC-190361 | Active | website |
| Steve D Thompson Trucking Inc | Winnsboro | LA | 29009 | MC-121658 | R 1991 | |
| Steve Marchionda | Penn Yan | NY | 244252 | MC-172849 | R 2014 | |
| Stevens Transport | Dallas | TX | 79466 | MC-150578 | Active | website |
| Stevens Trucking Co | Oklahoma City | OK | 193644 | MC-156009 | Active | website |
| Stevens Van Lines | Saginaw | MI | 72029 | MC-074681 | Active | |
| Stewart-Stiles Truck Line | Cornelius | OR | 59627 | MC-75623 | Inactive | |
| Stiles Truck Line | Pasadena | TX | 226002 | MC-155435 | ||
| Stonier Trucking Co Inc | Jacksonville | FL | Unknown | |||
| Story's Express | Chester | PA | N/A | |||
| Stott and Davis Motor Express Inc | Auburn | NY | 15100 | MC-099569 | Active | |
| Stout Trucking Co Inc | Urbana | IL | 6447 | MC-128030 | R 1987 | |
| Strang Trucking Co Inc | Coral Gables | FL | 341019 | 198055 | Inactive | |
| Strickland Transportation Co Inc | Dallas | TX | MC-059680 | Sold 1978 | ||
| Structural Transport Inc | Franklin | WI | 179985 | MC-245186 | Inactive | |
| STS Motor Freight Inc | Philadelphia | PA | 58104 | MC-136773 | R 2009 | |
| Stuckenschneider Trucking | Martinsburg | MO | 192018 | MC-209751 | Inactive | |
| Sturgis Transportation | Sturgis | SD | 281305 | MC-188641 | R 1991 | |
| Sturm Freightways Inc | Peoria | IL | 71321 | MC-108649 | T 1986 | |
| Styer Transportation | Lakeville | MN | 164228 | MC-142257 | Active | website |
| Subler Transfer Inc | Versailles | OH | 81429 | MC-117883 | T 1981 | |
| Suburban Motor Freight Inc | Columbus | OH | 103904 | MC-044447 | Clsd 1987 | |
| Sue Vinje Trucking Inc | Superior | WI | 779371 | MC-348690 | Inactive | |
| Suelzer Van Lines Inc | Fort Wayne | IN | 12342 | MC-074755 | R 1989 | |
| Sugar Transport Inc | Savannah | GA | 29608 | MC-115924 | R 1987 | |
| Sullivan Transfer Co | Dallas | TX | N/A | |||
| Summerford Truck Line Inc | Ashford | AL | 97879 | MC-107960 | Active | website |
| Summitt Trucking LLC | Clarksville | IN | 912424 | MC-395146 | Active | website |
| Sun Blest Carriers | Noblesville | IN | 314170 | MC-204659 | R 1999 | |
| Sun Express Inc | Warren | OH | 103903 | MC-119531 | T 1983 | |
| Sunbelt Express | Hickory | NC | N/A | |||
| Sunbelt Express Inc | Florence | SC | 200183 | MC-151480 | R 1987 | |
| Sunbelt Furniture Xpress Inc | Hickory | NC | 97173 | MC-128117 | Active | website |
| Sunco Carriers | Lakeland | FL | 2220509 | MC-203486 | Not Authorized | |
| Sunco Trucking | Farmington | NM | 161083 | NONE | Inactive | |
| Sundance Freight Lines Inc | Phoenix | AZ | Sold 1979 | |||
| Sunflower Carriers Inc | York | NE | 139001 | MC-150592 | R 2003 | |
| Sunflower Lines Inc | Joplin | MO | N/A | |||
| Sunrise Express Inc | Grand Island | NE | 256401 | MC-181796 | Active | website |
| Sunstate Courier Inc | Pompano Beach | FL | 641117 | MC-300278 | R 2003 | |
| Super Cartage | Chicago | IL | 147217 | MC-121376 | Active | |
| Super Service LLC | Somerset | KY | 1972877 | MC-151056 | Inactive | |
| Super Service Motor Freight Co Inc | Nashville | TN | MC-106456 | Sold 1957 | ||
| Super Transport Inc | Boca Raton | FL | 218183 | MC-159435 | R 2006 | |
| Super Van Service Co Inc | St. Louis | MO | 246353 | MC-174458 | Inactive | |
| Superior Carriers Inc | Oak Brook | IL | 84338 | MC-107544 | Inactive | |
| Superior Fast Freight | Los Angeles | CA | 58978 | MC-121336 | R 1994 | |
| Superior Forwarding Co Inc | St Louis | MO | 77918 | MC-075406 | R 1993 | |
| Superior Tank Lines | Colton | CA | 1885447 | MC-679508 | Active | website |
| Superior Transfer Inc | Baltimore | MD | 163637 | MC-150274 | NAN | |
| Superior Trucking Co | Birmingham | AL | 92829 | MC-106644 | R 1987 | |
| Superior Trucking Co Inc | Birmingham | AL | 92829 | MC-106644 | R 1987 | |
| Suttles Truck Leasing Inc | Demopolis | AL | 226673 | MC-159006 | Active | |
| Suttles Truck Leasing Inc | Demopolis | PA | 226673 | MC-159006 | Active | |
| Sutton Transport Inc | Weston | WI | 173800 | MC-236833 | Active | website |
| Suwak Truck Lines | Washington | PA | 37597 | MC-111956 | Sold 1988 | |
| Suzanne Transport | Florida | NY | N/A | |||
| Swain and Sons Transports Inc | Memphis | TN | 163952 | MC-145875 | R 2001 | |
| Sward Trucking Inc | Oakdale | CA | 169838 | MC-146045 | R 2011 | |
| Sweeney Brothers Transportation | Chicopee | MA | 55349 | MC-120023 | Sold 2018 | |
| Swift Leasing Co Inc | Phoenix | AZ | 54283 | MC-00136818 | AAA | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website |
| Swing Transport Inc | Salisbury | NC | 142116 | MC-115176 | R 2020 | |
| System 81 Express Inc | Knoxville | TN | 218747 | MC-155723 | R 2003 | |
| System 99 | Oakland | CA | 138169 | MC-098327 | Clsd 1987 | |
| System Transport Inc | Spokane | WA | 27935 | MC-107743 | Active | website |