 c01b.jpg ){kind=spacer}
If you click on a Carrier Name link, the site will direct you to separate page with additional detail on the carrier.
I have donated many of these in a display to the Iowa 80 Truck Museum (Walcott, IA ) and the American Truck Historical Society (Kansas City, MO )
If you have a patch that you would like me to add to this site please send an image of it to me Contact Me
If you see an error in the data or a link does not work (I have been building this site for over 1 ½ years and there are thousands
of images, lines of code, and links, so there are bound to be a few that don’t work that I may not be aware of) Contact Me
| Carrier | City | State | Dot# | MC# | Status | Website | Patch ID | Image |
|---|---|---|---|---|---|---|---|---|
| S & F Transport | Saint-Stanislas-de-Kostka | QC | 0 | Unknown | Unknown | website | C 01 | |
| S & M Moving | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| S & T Trucking | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| S & W Freight Lines Inc | Murfreesboro | TN | 36764 | MC-121644 | Revoked 1998 | C 01 | | |
| S & W Motor Lines Inc | Greensboro | NC | 90873 | MC-040898 | Revoked 1992 | C 01 | | |
| S & W Transports Inc | Velma | OK | 781511 | NONE | Not Authorized | C 01 | | |
| S A Cartage Inc | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| S A F Transport | Saint-Cestin | QC | 0 | Unknown | Unknown | C 01 | | |
| S C T | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| S Coraluzzo Petroleum Transporters Co Inc | Vineland | NJ | 156123 | MC-042343 | Active | website | C 01 | |
| S E Drivers | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| S E Drivers | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| S J Transportation Co Inc | Woodstown | NJ | 154323 | MC-150546 | Active | website | C 01 | |
| S J Transportation Co Inc | Woodstown | NJ | 154323 | MC-150546 | Active | website | C 02 | |
| S L Logan Trucking | Unknown | XX | 0 | Unknown | Unknown | H 01 | | |
| S M Lorusso & Sons Inc | Walpole | MA | 348918 | none | Not Authorized | C 01 | | |
| S O S Transport | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| S S Flegel Trucking Co | Prineville | OR | 158478 | MC-146231 | Revoked 2001 | C 01 | | |
| S S J Lines Inc | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| S W Lines | Cedar Rapids | IA | 0 | Unknown | Unknown | C 01 | | |
| Sabre Transport Ltd | Edmonton | AB | 0 | Unknown | Unknown | C 01 | | |
| Safeway Truck Lines Inc | South Bend | IN | 0 | MC-110193 | I 1983 | C 01 | | |
| Safeway Truck Lines Inc | South Bend | IN | 0 | MC-110193 | I 1983 | C 02 | | |
| Sage | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Saginaw Transfer Co | Saginaw | MI | 0 | MC-055843 | P 1969 | C 01 | | |
| SAIA Motor Freight Line Inc | Houme | LA | 29124 | MC-087511 | Active | website | C 01 | |
| SAIA Motor Freight Line Inc | Houme | LA | 29124 | MC-087511 | Active | website | C 02 | |
| SAIA Motor Freight Line Inc | Houme | LA | 29124 | MC-087511 | Active | website | C 03 | |
| SAIA Motor Freight Line Inc | Houme | LA | 29124 | MC-087511 | Active | website | C 04 | |
| SAIA Motor Freight Line Inc | Houme | LA | 29124 | MC-087511 | Active | website | C 05 | |
| SAIA Motor Freight Line Inc | Houme | LA | 29124 | MC-087511 | Active | website | C 06 | |
| SAIA Motor Freight Line Inc | Houme | LA | 29124 | MC-087511 | Active | website | C 07 | |
| SAIA Motor Freight Line Inc | Houme | LA | 29124 | MC-087511 | Active | website | C 08 | |
| SAIA Motor Freight Line Inc | Houme | LA | 29124 | MC-087511 | Active | website | C 09 | |
| SAIA Motor Freight Line Inc | Houme | LA | 29124 | MC-087511 | Active | website | C 10 | |
| SAIA Motor Freight Line Inc | Houme | LA | 29124 | MC-087511 | Active | website | C 12 | |
| Salas Trucking | W Covin | CA | 1406213 | MC-621383 | Not Authorized | C 01 | | |
| Salem Carriers Inc | Winston-Salem | NC | 229354 | MC-162239 | Active | C 01 | | |
| Salem Carriers Inc | Winston-Salem | NC | 229354 | MC-162239 | Active | C 02 | | |
| Salem Carriers Inc | Winston-Salem | NC | 229354 | MC-162239 | Active | C 03 | | |
| Salem Carriers Inc | Winston-Salem | NC | 229354 | MC-162239 | Active | C 04 | | |
| Salida Transfer | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Salt Creek Freightways | Casper | WY | 101187 | MC-059856 | Revoked 1987 | C 01 | | |
| Salt Creek Freightways | Casper | WY | 101187 | MC-059856 | Revoked 1987 | C 02 | | |
| Salters Express Co | Simsbury | CT | 17537 | MC-038650 | Active | website | C 01 | |
| Sam Bowman Trucking Inc | Fremont | NE | 376453 | MC-215896 | Revoked 2001 | H 01 | | |
| Sam Tanksley Trucking Inc | Cape Girardeau | MO | 77922 | MC-105566 | Revoked 1990 | C 01 | | |
| Sam Tanksley Trucking Inc | Cape Girardeau | MO | 77922 | MC-105566 | Revoked 1990 | C 02 | | |
| Sam Tanksley Trucking Inc | Cape Girardeau | MO | 77922 | MC-105566 | Revoked 1990 | C 03 | | |
| Sam Young Inc | Wolcott | IN | 164143 | MC-143917 | Revoked 1982 | C 01 | | |
| Sam Young Inc | Wolcott | IN | 164143 | MC-143917 | Revoked 1982 | C 02 | | |
| Sameday Right-O-Way | Mississauga | ON | 0 | Unknown | Unknown | C 01 | | |
| Sammons Trucking | Missoula | MT | 30161 | MC-124692 | Active | website | C 01 | |
| Sammons Trucking | Missoula | MT | 30161 | MC-124692 | Active | website | C 02 | |
| Samuel | Unknown | XX | 999999999 | Unknown | Unknown | X 01 | | |
| Sanborn's Motor Express Inc | Portland | ME | 126772 | MC-002770 | Sold 1986 | C 01 | | |
| Sanborn's Motor Express Inc | Portland | ME | 126772 | MC-002770 | Sold 1986 | C 02 | | |
| Sandham Cartage Ltd | Tillsonburg | ON | 0 | Unknown | Unknown | C 01 | | |
| Sands Refrigerated Transportation Inc | Brazil | IN | 367544 | MC-190423 | NAN | C 02 | | |
| Santa | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Santa Fe Trail Transportation Co | Wichita | KS | 60137 | MC-030605 | Revoked 1987 | C 01 | | |
| Santa Fe Trail Transportation Co | Wichita | KS | 60137 | MC-030605 | Revoked 1987 | C 02 | | |
| Santa Fe Trail Transportation Co | Wichita | KS | 60137 | MC-030605 | Revoked 1987 | C 03 | | |
| Santee Carriers Inc | Holly Hill | SC | 0 | MC-148080 | T 1994 | C 01 | | |
| Sarah Webb Trucking | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| Sarah's Motor Express Inc | Lancaster | PA | 718130 | MC-331071 | Revoked 2018 | C 01 | | |
| Sarai Trucking Ltd | Brampton | ON | 932196 | MC-401354 | NAN | C 01 | | |
| Sather Trucking Corp | Round Lake | MN | 75519 | MC-138283 | Revoked 2008 | C 01 | | |
| Satterfield Trucking Co | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Sausalito Moving & Storage | Sausalito | CA | 0 | Unknown | Unknown | C 01 | | |
| Savage | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Savage Bros | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| SCC Transportation Inc | Carmel | NY | 0 | Unknown | Unknown | C 01 | | |
| Schaffer Truck Lines | Hampton | MN | 1326953 | None | Not Authorized | C 01 | | |
| Schanno Transportation Inc | St. Paul | MN | 116479 | MC-134477 | Revoked 2003 | C 01 | | |
| Schanno Transportation Inc | St. Paul | MN | 116479 | MC-134477 | Revoked 2003 | C 02 | | |
| Schanno Transportation Inc | St. Paul | MN | 116479 | MC-134477 | Revoked 2003 | C 03 | | |
| Schanno Transportation Inc | St. Paul | MN | 116479 | MC-134477 | Revoked 2003 | C 04 | | |
| Schanno Transportation Inc | St. Paul | MN | 116479 | MC-134477 | Revoked 2003 | C 05 | | |
| Scheduled Truckways Inc | Rogers | AR | 183847 | MC-150783 | Revoked 1992 | C 01 | | |
| Scheduled Truckways Inc | Rogers | AR | 183847 | MC-150783 | Revoked 1992 | C 02 | | |
| Scherer Freight Lines | Ottawa | IL | 13561 | MC-021571 | I 1983 | C 01 | | |
| Scherer Freight Lines | Ottawa | IL | 13561 | MC-021571 | I 1983 | C 02 | | |
| Schilli Motor Lines Inc | Remington | IN | 293037 | MC-188697 | Revoked 2020 | C 01 | | |
| Schilli Motor Lines Inc | Remington | IN | 293037 | MC-188697 | Revoked 2020 | O 01 | | |
| Schilli Motor Lines Inc | Remington | IN | 293037 | MC-188697 | Revoked 2020 | C 02 | | |
| Schirmer Transportation Co | St Paul | MN | 0 | MC-103654 | Revoked 1993 | C 01 | | |
| Schmidt Truck Lines | Duluth | MN | 0 | Unknown | Unknown | C 01 | | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | C 01 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | O 01 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | C 02 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | O 02 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | C 03 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | O 03 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | C 04 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | O 04 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | C 05 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | C 06 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | C 07 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | C 08 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | C 10 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | C 11 | |
| Schneider National | Green Bay | WI | 264184 | MC-133655 | Active | website | C 12 | |
| Schneider National Bulk Carriers Inc | Green Bay | WI | 164311 | MC-143594 | Active | website | O 01 | |
| Green Bay | WI | 264184 | MC-133655 | Active | website | O 02 | | |
| Schneider National Carriers Inc | Green Bay | WI | 264184 | MC-133655 | Active | website | O 03 | |
| Schneider National Carriers Inc | Green Bay | WI | 264184 | MC-133655 | Active | website | C 04 | |
| Schneider National Carriers Inc | Green Bay | WI | 264184 | MC-133655 | Active | website | O 04 | |
| Schneider National Carriers Inc | Green Bay | WI | 264184 | MC-133655 | Active | website | O 05 | |
| Schneider Intermodal Marketing Inc | Green Bay | WI | 264184 | MC-133655 | Active | website | C 01 | |
| Schneider Transport | Green Bay | WI | 46596 | MC-051146 | Active | website | C 01 | |
| Schneider Transport | Green Bay | WI | 46596 | MC-051146 | Active | website | C 02 | |
| Schneider Transport | Green Bay | WI | 46596 | MC-051146 | Active | website | C 03 | |
| Schneider Transport | Green Bay | WI | 46596 | MC-051146 | Active | website | C 09 | |
| Schneiders Transfer Inc | Morton | IL | 0 | Unknown | Unknown | C 01 | | |
| Schoeler Mid-con | Winnipeg | MB | 0 | Unknown | Unknown | C 01 | | |
| Schoeler Trucking Ltd | Calgary | AB | 0 | Unknown | Unknown | C 01 | | |
| Schroll Transportation Inc | East Hartford | CT | 17446 | MC-001485 | Revoked 2010 | C 01 | | |
| Schultz Transit Inc | Winona | MN | 116326 | MC-118202 | Revoked 1991 | C 01 | | |
| Schuster | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Schuster Co | Le Mars | IA | 69852 | MC-140125 | Active | website | C 01 | |
| Schuster Express Inc | Colchester | CT | 19326 | MC-108587 | Sold 1983 | C 01 | | |
| Schuster Express Inc | Colchester | CT | 19326 | MC-108587 | Sold 1983 | C 01 | | |
| Schuster Express Inc | Colchester | CT | 19326 | MC-108587 | Sold 1983 | C 03 | | |
| Schuster Express Inc | Colchester | CT | 19326 | MC-108587 | Sold 1983 | C 04 | | |
| Schuster Express Inc | Colchester | CT | 19326 | MC-108587 | Sold 1983 | C R02 | | |
| Schwerman Trucking Co | Milwaukee | WI | 46595 | MC-124078 | Active | website | C 01 | |
| Schwerman Trucking Co | Milwaukee | WI | 46595 | MC-124078 | Active | website | O 01 | |
| Schwerman Trucking Co | Milwaukee | WI | 46595 | MC-124078 | Active | website | C 02 | |
| Schwerman Trucking Co | Milwaukee | WI | 46595 | MC-124078 | Active | website | C 03 | |
| Schwerman Trucking Co | Milwaukee | WI | 46595 | MC-124078 | Active | website | C 04 | |
| Schwerman Trucking Co | Milwaukee | WI | 46595 | MC-124078 | Active | website | C 05 | |
| Schwerman Trucking Co | Milwaukee | WI | 46595 | MC-124078 | Active | website | C 06 | |
| Schwerman Trucking Co | Milwaukee | WI | 46595 | MC-124078 | Active | website | C 07 | |
| Schwerman Trucking Co | Milwaukee | WI | 46595 | MC-124078 | Active | website | C 08 | |
| Schwerman Trucking Co | Milwaukee | WI | 46595 | MC-124078 | Active | website | C 09 | |
| Schwerman Trucking Co | Milwaukee | WI | 46595 | MC-124078 | Active | website | C 10 | |
| Sciarretti Trucking | Homestead | PA | 1216856 | NONE | Active | website | C 01 | |
| Scott Interstate Transportation Inc | Plainfield | IL | 0 | Unknown | Unknown | C 01 | | |
| Scott Motor Transport Co | Bucksport | MO | 161988 | MC-133408 | D 1977 | C 01 | | |
| Scott Truck Line Inc | Denver | CO | 34333 | MC-123987 | Revoked 2010 | C 01 | | |
| Scott Truck Line Inc | Denver | CO | 34333 | MC-123987 | Revoked 2010 | C 02 | | |
| Scout Trucking Inc | Spring City | PA | 245019 | MC-168293 | Revoked 1996 | C 01 | | |
| Scout Trucking Inc | Spring City | PA | 245019 | MC-168293 | Revoked 1996 | C 02 | | |
| SCP Trucking Co Inc | Silver City | NC | 0 | Unknown | Unknown | C 01 | | |
| Scully Transportation Services Inc | Fontana | CA | 648179 | MC-252020 | Revoked 2025 | C 01 | | |
| Sdanders Trucking | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| SDI | Olive Branch | MS | 0 | Unknown | Unknown | C 01 | | |
| Sea Wheels Inc | Joppatowne | MD | 1383132 | MC-527712 | Revoked 2017 | C 01 | | |
| Seaboard Tank Lines Inc | Dunmore | PA | 38244 | MC-109443 | Revoked 2004 | C 01 | | |
| Seabolt Transport | North McDonough | GA | 242981 | MC-263707 | Revoked 2006 | C 01 | | |
| Seacoast Transportation Co | Unknown | XX | 0 | Unknown | Unknown | ? 01 | | |
| Seaside Refrigerated Transport | Unknown | XX | 0 | Unknown | Unknown | H 01 | | |
| Seattle Transfer & Storage Co | Seattle | WA | 0 | MC-067020 | Revoked 2009 | C 01 | | |
| Seawater Trucking Inc | Perry | OK | 477867 | MC-238952 | Not Authorized | C 01 | | |
| Seaway Midwest | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Seb's Trucking | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Security Van Lines Inc | Kenner | LA | 2211733 | MC-130714 | Active | website | C 01 | |
| Security Van Lines Inc | Kenner | LA | 2211733 | MC-130714 | Active | website | C 02 | |
| Seigle's Express Inc | Kearny | NJ | 19613 | MC-054200 | Revoked 1997 | C 01 | | |
| Select Service Inc | Eighty Four | PA | 344483 | MC-194003 | Active | C 01 | | |
| Semper Truck Lines Inc | Fresno | CA | 44123 | MC-408984 | Revoked 2006 | C 01 | | |
| Senn Trucking Co | Newberry | SC | 63414 | MC-114552 | Revoked 1993 | C 01 | | |
| Senn Trucking Co | Newberry | SC | 63414 | MC-114552 | Revoked 1993 | C 02 | | |
| Sentinel Transportation LLC | Wilmington | DE | 613084 | MC-294124 | Active | C 01 | | |
| Sentle Trucking Corp | Toledo | OH | 71666 | MC-109124 | Revoked 1989 | C 01 | | |
| Sentle Trucking Corp | Toledo | OH | 71666 | MC-109124 | Revoked 1989 | C 02 | | |
| Sentle Trucking Corp | Toledo | OH | 71666 | MC-109124 | Revoked 1989 | C 03 | | |
| Sercombe Trucking Inc | Jackson | MI | 201894 | C-156727 | Active | C 01 | | |
| Sercombe Trucking Inc | Jackson | MI | 201894 | C-156727 | Active | C 02 | | |
| Serfleet | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Servall | Concord | ON | 0 | MC-146471 | Revoked 1993 | C 02 | | |
| Servall Western | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Service Express | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| Service Express Inc | Tuscaloosa | AL | 105809 | MC-120910 | Revoked 1999 | C 01 | | |
| Service Lines Inc | St Louis | MO | 153148 | MC-000879 | I 1983 | C 01 | | |
| Service Motor Freight Inc | Feura Bush | NY | 0 | Unknown | Unknown | C 01 | | |
| Service Plus Transportations | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Service Transfer Inc | Wichita | KS | 60160 | MC-237499 | Revoked 2003 | C 01 | | |
| Service Transport Co | Houston | TX | 229662 | MC-167776 | Active | website | C 01 | |
| Service Transport Co | Houston | TX | 229662 | MC-167776 | Active | website | C 02 | |
| Service Transport Inc | Nashville | TN | 129577 | MC-148392 | Revoked 2005 | C 01 | | |
| Service Transport Inc | Nashville | TN | 129577 | MC-148392 | Revoked 2005 | C 02 | | |
| Service Transport Inc | Nashville | TN | 129577 | MC-148392 | Revoked 2005 | C 03 | | |
| Service Transport Inc | Nashville | TN | 129577 | MC-148392 | Revoked 2005 | C 04 | | |
| Service Transport Inc | Nashville | TN | 129577 | MC-148392 | Revoked 2005 | C 04 | | |
| Service Transport Inc | Nashville | TN | 129577 | MC-148392 | Revoked 2005 | C 05 | | |
| Service Transport Lines Inc (STL) | Rock Island | IL | 104134 | MC-121236 | Revoked 1998 | C 01 | | |
| Service Trucking Inc | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Seward Motor Freight Inc | Seward | NE | 73148 | MC-085718 | Active | website | C 01 | |
| Sextant Lines | Mississauga | ON | 612957 | MC-294328 | Inactive | C 01 | | |
| Seyller Transport Inc | Lake in the Hills | IL | 291481 | MC-188510 | Revoked 2002 | C 01 | | |
| SFC Trucking | Unknown | XX | 0 | Unknown | Unknown | ? 00 | | |
| Shader Brothers | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Shadow Lines Transportation Group | Langley | BC | 141514 | MC-141599 | Active | website | C 01 | |
| Shadow Lines Transportation Group | Langley | BC | 141514 | MC-141599 | Active | website | C 02 | |
| Shafer Trucking Co | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Shaffer Trucking Inc | New Kingstown | PA | 10691 | MC-126118 | T 1974 | C 01 | | |
| Shaffer Trucking Inc | New Kingstown | PA | 10691 | MC-126118 | T 1974 | C 02 | | |
| Shaker Group Inc | Katham | NY | 625028 | MC-298142 | Active | C 01 | | |
| Shamrock Distribution Inc | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Shamrock Transport Co | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Shamrock Transport Inc | Attleboro | MA | 682683 | MC-317681 | Revoked 2001 | C 01 | | |
| Shamrock Van Lines Inc | San Jose | CA | 0 | Unknown | Unknown | C 01 | | |
| Shanahan's Express | Cinnaminson | NJ | 9013 | MC-28142 | D 1996 | C 01 | | |
| Shane Transport | Fresno | CA | 161213 | MC-148840 | Revoked 2007 | C 01 | | |
| Shannon & Son Transfer | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Shanrock Truck Lines | Unknown | XX | 0 | Unknown | Unknown | H 01 | | |
| Sharkey Transportation Inc | Quincy | IL | 55815 | MC-135598 | Active | website | C 01 | |
| Sharkey Transportation Inc | Quincy | IL | 55815 | MC-135598 | Active | website | O 01 | |
| Sharmax Freightlines Inc | San Diego | CA | 439697 | MC-158663 | Revoked 1996 | C 01 | | |
| Sharp Transport Inc | Lawrenceburg | TN | 52970 | MC-148130 | Revoked 2022 | C 01 | | |
| Shaver Trucking Inc | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Shaw & Sons Transportation Co Inc | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Shaw Trucking | Oklahoma City | OK | 0 | Unknown | Unknown | C 01 | | |
| Shaw Trucking Inc | Brockway | PA | 0 | Unknown | Unknown | C 01 | | |
| Shay's | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| Shay's Service Inc | Dansville | NY | 15086 | MC-098017 | T 1986 | C 01 | | |
| Sheedy Drayage Co | San Francisco | CA | 60740 | MC-037771 | Active | website | C 01 | |
| Shein's Express | Trenton | NJ | 0 | MC-080504 | Sold 1964 | C 01 | | |
| Shelba D Johnson Trucking Inc | High Point | NC | 273416 | MC-179973 | Revoked 2024 | C 01 | | |
| Sheldon | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Shelton Brothers | Borger | TX | 0 | Unknown | Unknown | C 01 | | |
| Shelton Trucking Service Inc | Altha | FL | 89970 | MC-124887 | Revoked 2018 | C 01 | | |
| Shelton Trucking Service Inc | Altha | FL | 89970 | MC-124887 | Revoked 2018 | C 02 | | |
| Shenandoah Motor Express Inc | Versailles | OH | 228738 | MC-164820 | Revoked 2004 | C 01 | | |
| Shepard's Express Inc | Leominster | MA | 106932 | MC-120888 | Revoked 1998 | C 01 | | |
| Shepard's Express Inc | Leominster | MA | 106932 | MC-120888 | Revoked 1998 | C 02 | | |
| Shepherd Bulk Carriers Ltd | Calgary | AB | 322069 | MC-268078 | Revoked 1996 | C 01 | | |
| Shepherd Bulk Carriers Ltd | Calgary | AB | 322069 | MC-268078 | Revoked 1996 | C 02 | | |
| Shepley Motor Express | Thornton | IL | 562841 | MC-129770 | Active | website | C 01 | |
| Sheppard Trucking | Hillsboro | OH | 1074618 | MC-448289 | Revoked 2004 | H 01 | | |
| Sheppard Trucking Co Inc | Charleston | SC | 0 | Unknown | Unknown | C 01 | | |
| Sherman Brothers Heavy Trucking | Harrisburg | OR | 12179 | MC-077061 | Active | website | C 01 | |
| Sherwood Van Lines Inc | San Antonio | TX | 136553 | MC-111823 | Revoked 1995 | C 01 | | |
| Shipley Transport | Sykesville | MD | 222826 | MC-150973 | Revoked 2022 | C 01 | | |
| Shipley Transport | Sykesville | MD | 222826 | MC-150973 | Revoked 2022 | C 02 | | |
| Shippers Dispatch Inc | South Bend | IN | 0 | MC-072140 | Merged 1976 | C 01 | | |
| Shippers Dispatch Inc | South Bend | IN | 0 | MC-072140 | Merged 1976 | C 02 | | |
| Shippers Express Co | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| Shippers Express Inc | Jackson | MS | 87862 | MC-066746 | Revoked 2022 | C 01 | | |
| Shirks Motor Express | Lancaster | PA | 0 | MC-001658 | P 1957 | C 02 | | |
| Shirks Motor Express | Lancaster | PA | 0 | MC-001658 | P 1957 | C 03 | | |
| Shoreline Transport Ltd | Nelson | BC | 163073 | MC-144607 | Revoked 2008 | C 01 | | |
| Shorewood Transport | Farmingdale | NY | 400824 | MC-160884 | Revoked 2007 | C 01 | | |
| Short Freight Lines Inc | Bay City | MI | 72022 | MC-108382 | Active | website | C 01 | |
| Shouldice Stone Co | Unknown | XX | 0 | Unknown | Unknown | X 01 | | |
| Show Me Trucking | Harrison | MO | 639602 | MC-299207 | Active | website | C 01 | |
| Shull Transport LLC | Conover | NC | 285618 | MC-186471 | Revoked 2011 | C 01 | | |
| Shulman Freight Forwarders Inc | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Shumaker Trucking Co | Dillsburg | PA | 350434 | MC-095813 | Revoked 2016 | C 01 | | |
| Shumaker Trucking Co | Dillsburg | PA | 350434 | MC-095813 | Revoked 2016 | C 02 | | |
| Shumpert Truck Lines Inc | Memphis | TN | 0 | MC-603 | Inactive | C 01 | | |
| Shupe & Yost Inc | Greely | CO | 14555 | MC-123075 | Revoked 2001 | C 01 | | |
| Sicomac Carriers Inc | Parsippany | NJ | 161359 | MC-144061 | Revoked 2017 | C 01 | | |
| SicotteTransports Ltd | Lambert | QC | 0 | Unknown | Unknown | C 01 | | |
| Sid Kamp Inc | Mokena | IN | 1727135 | MC-632913 | Active | website | C 01 | |
| Sidney Freight Ltd | Hamilton | ON | 1416919 | MC-536206 | Revoked 2012 | C 01 | | |
| Siefert Bros Trucking Co | DuQuoin | IL | 78523 | MC-126222 | Revoked 2006 | C 01 | | |
| Sierra West Express | S[arks | NV | 483893 | MC-253427 | Revoked 2006 | C 01 | | |
| Signal Delivery Service Inc | Hinsdale | IL | 104124 | MC-108393 | Revoked 1987 | C 02 | | |
| Signal Delivery Service Inc | Hinsdale | IL | 104124 | MC-108393 | Revoked 1987 | C 03 | | |
| Signal Delivery Service Inc | Hinsdale | IL | 104124 | MC-108393 | Revoked 1987 | C 04 | | |
| Signal Trucking Service Ltd | Los Angeles | CA | 58961 | MC-000868 | Revoked 1980 | C 01 | | |
| Signal Trucking Service Ltd | Los Angeles | CA | 58961 | MC-000868 | Revoked 1980 | C 02 | | |
| Sikes Transportation Service | Los Angeles | CA | 58961 | MC-000868 | Revoked 1980 | C 01 | | |
| SIL | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Silcon Trucking Inc | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Silicon Roadways Inc | Hayward | CA | 892706 | MC-388275 | Active | website | C 01 | |
| Silvan Trucking Co Inc | Pendleton | IN | 70738 | MC-133314 | Active | C 01 | | |
| Silver Arrow Express Inc .html"target"_blank"> | Rockford | IL | 326561 | MC-188228 | Active | CH 01 | | |
| Silver Arrow Express Inc Silver Arrow Express Inc | Rockford | IL | 326561 | MC-188228 | Active | C 02 | | |
| Silver Dollar Express Inc | Long Beach | CA | 1003032 | 424104 | Revoked 2005 | C 01 | | |
| Silver Eagle Co | Portland | OR | 59664 | MC-032779 | Revoked 2000 | C 01 | | |
| Silver Eagle Co | Portland | OR | 59664 | MC-032779 | Revoked 2000 | C 02 | | |
| Silver Eagle Co | Portland | OR | 59664 | MC-032779 | Revoked 2000 | C 03 | | |
| Silver Eagle Transport Inc | Jacksonville | FL | 265302 | MC-177515 | T 1998 | C 01 | | |
| Silver Fleet Motor Express Inc (The) | Louisville | KY | 0 | MC-040858 | Unknown | C 01 | | |
| Silver Fleet Motor Express Inc (The) | Louisville | KY | 0 | MC-040858 | Unknown | C 02 | | |
| Silver Fleet Motor Express Inc (The) | Louisville | KY | 0 | MC-040858 | Unknown | C 03 | | |
| Silver Star Express | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Silver Wheels Freightlines Inc | Portland | OR | 59668 | MC-107576 | Clsd 1983 | C 01 | | |
| Silver Wheels Freightlines Inc | Portland | OR | 59668 | MC-107576 | Clsd 1983 | C 02 | | |
| Silver Wheels Freightlines Inc | Portland | OR | 59668 | MC-107576 | Clsd 1983 | C 03 | | |
| Silvey Refrigerated Carriers Inc | Omaha | NE | 53374 | MC-125951 | Revoked 1990 | C 01 | | |
| Simmons Trucking | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Simon Transport | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| Simon Trucking Inc | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Sinder Trucking Service Inc | Unknown | XX | 0 | Unknown | Unknown | H 01 | | |
| Singer Interstate Carriers Inc | Hawthorne | NJ | 26184 | MC-119788 | Revoked 1998 | C 01 | | |
| Singer Transportation Co | Unknown | XX | 0 | Unknown | Unknown | H 02 | | |
| Single Source Transportation | Des Moines | IA | 98098 | MC-110567 | Revoked 2015 | C 01 | | |
| Single Source Transportation | Des Moines | IA | 98098 | MC-110567 | Revoked 2015 | C 02 | | |
| Sioux Tank Lines Inc | Orange City | IA | 230708 | MC-166199 | Active | C 01 | | |
| Sioux Transportation Co Inc | Sioux City | IA | 69887 | MC-022301 | T 1984 | C 01 | | |
| Sisbro Inc | Quincy | IL | 264334 | MC-170410 | Active | website | C 01 | |
| Sitton Motor Lines Inc | Joplin | MO | 20567 | MC-147536 | Revoked 2009 | C 01 | | |
| Sitton Transportation Inc | Beaumont | TX | 240483 | MC-171651 | Revoked 2004 | C 01 | | |
| Sixshuz Trucking | Beaumont | TX | 240483 | MC-171651 | Revoked 2004 | C 01 | | |
| Skagit Valley Trucking Co Inc | Mount Vernon | WA | 80538 | MC-112014 | Active | C 01 | | |
| Skelton Truck Lines Ltd | Sharon | ON | 292662 | MC-185997 | Active | C 01 | | |
| Skinner Motor Express | Indianapolis | IN | 0 | Unknown | C 1987 | C 01 | | |
| Skinner Transfer Corp | Reedsburg | WI | 74466 | MC-109376 | Active | website | C 01 | |
| Skip Mckean Petroleum Transport Inc | Henniker | NH | 514249 | MC-168071 | Active | C 01 | | |
| Skippen Transport | Henniker | NH | 514249 | MC-168071 | Active | C 01 | | |
| Skippen Transport Ltd | Thornbury | ON | 0 | Unknown | Unknown | C 02 | | |
| Sky Bros Inc | Altoona | PA | 0 | Unknown | Unknown | N 01 | | |
| Sky Bros Inc | Altoona | PA | 0 | Unknown | Unknown | N 02 | | |
| Sky Bros Inc | Altoona | PA | 0 | Unknown | Unknown | C 03 | | |
| Skyline Transportation Inc | Knoxville | TN | 41190 | MC-099208 | Not Authorized | C 01 | | |
| Skyline Transportation Inc | Knoxville | TN | 41190 | MC-099208 | Not Authorized | C 02 | | |
| Skyline Transportation Inc | Knoxville | TN | 41190 | MC-099208 | Not Authorized | C 03 | | |
| Skyline Transportation Inc | Knoxville | TN | 41190 | MC-099208 | Not Authorized | C 04 | | |
| Slack Transport Ltd | Caledonia | ON | 161294 | MC-146463 | Revoked 1992 | C 01 | | |
| Slack Transport Ltd | Caledonia | ON | 161294 | MC-146463 | Revoked 1992 | C 02 | | |
| Slay Transportation | St Louis | MO | 77890 | MC-113325 | Active | website | C 01 | |
| SLH Transport Inc | Kingston | ON | 343120 | MC-222741 | Active | C 01 | | |
| SLH Transport Inc | Kingston | ON | 343120 | MC-222741 | Active | O 01 | | |
| Smalley Transportation Co | Tampa | FL | 2211686 | MC-121667 | T 1994 | C 01 | | |
| Smalley Transportation Co | Tampa | FL | 2211686 | MC-121667 | T 1994 | O 01 | | |
| Smalley Transportation Co | Tampa | FL | 2211686 | MC-121667 | T 1994 | C 02 | | |
| Smalley Transportation Co | Tampa | FL | 2211686 | MC-121667 | T 1994 | H 03 | | |
| Smalley Transportation Co | Tampa | FL | 2211686 | MC-121667 | T 1994 | C 04 | | |
| Smalley Transportation Co | Tampa | FL | 2211686 | MC-121667 | T 1994 | C 05 | | |
| Smart & Final Transportation Inc | City of Commerce | CA | 420341 | MC-272510 | Active | website | C 01 | |
| Smart & Final Transportation Inc | City of Commerce | CA | 420341 | MC-272510 | Active | website | C 02 | |
| Smellies Transport Ltd | Guelp | ON | 0 | Unknown | OB <1990 | C 01 | | |
| Smiser Freight Service | South Gate | CA | 58965 | MC-120168 | Revoked 1992 | C 01 | | |
| Smith & Co | Unknown | XX | 0 | Unknown | Unknown | H 01 | | |
| Smith & Solomon Trucking Co | New Brunswick | NJ | 43574 | MC-059264 | Clsd 1987 | C 01 | | |
| Smith & Solomon Trucking Co | New Brunswick | NJ | 43574 | MC-059264 | Clsd 1987 | C 02 | | |
| Smith and Waters Inc | Ware Shoals | SC | 63417 | MC-099735 | Active | website | C 01 | |
| Smith and Waters Inc | Ware Shoals | SC | 63417 | MC-099735 | Active | website | C 02 | |
| Smith and Waters Inc | Ware Shoals | SC | 63417 | MC-099735 | Active | website | C 03 | |
| Smith Brothers Trucking | Mt Airy | NC | 335551 | MC-188332 | Revoked 2008 | C 01 | | |
| Smith Carriers Inc | Fairfield | NJ | 387615 | 175492 | Active | C 01 | | |
| Smith Transfer | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Smith Transport | Roaring Spring | PA | 246204 | MC-156598 | Active | website | C 01 | |
| Smith Transport | Roaring Spring | PA | 246204 | MC-156598 | Active | website | C 02 | |
| Smith Transport | Roaring Spring | PA | 246204 | MC-156598 | Active | website | C 03 | |
| Smith Transport Ltd | Toronto | ON | 26363 | MC-100463 | Revoked 1999 | C 03 | | |
| Smith Transportation Co | Santa Maria | CA | 58764 | MC-085205 | Revoked 1989 | C 01 | | |
| Smith Truck Lines | Leroy | NY | 0 | Unknown | Unknown | C 01 | | |
| Smith Trucking | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Smith's Transfer Corp | Staunton | VA | 84371 | MC-110683 | Sold 1987 | C 01 | | |
| Smith's Transfer Corp | Staunton | VA | 84371 | MC-110683 | Sold 1987 | C 02 | | |
| Smith's Transfer Corp | Staunton | VA | 84371 | MC-110683 | Sold 1987 | C 03 | | |
| Smith's Transfer Corp | Staunton | VA | 84371 | MC-110683 | Sold 1987 | C 04 | | |
| Smith's Transfer Corp | Staunton | VA | 84371 | MC-110683 | Sold 1987 | C 05 | | |
| Smiths Transit | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Smith's Truck lines | Muncy | PA | 38252 | MC-111940 | Revoked 1992 | C 01 | | |
| Smiths Trucking | Muncy | PA | 38252 | MC-111940 | Revoked 1992 | C 01 | | |
| Smith's Trucking | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Smithville Freight Lines Inc | Smithville | TN | 36769 | MC-98562 | T 1993 | C 01 | | |
| Smithway Motor Express Inc | Fort Dodge | IA | 1803 | MC-138627 | Revoked 2010 | C 01 | | |
| Smithway Motor Express Inc | Fort Dodge | IA | 1803 | MC-138627 | Revoked 2010 | C 02 | | |
| Smitty's Trucking | Unknown | XX | 0 | Unknown | Unknown | H 01 | | |
| SMT Transport | Unknown | XX | 0 | Unknown | Unknown | CH 01 | | |
| SMX Transport Inc | Watertown | NY | 278457 | MC-188917 | Revoked 1997 | C 01 | | |
| Smyth Greyhound Van Line Inc | Bellevue | WA | 117935 | MC-014786 | T 1981 | C 01 | | |
| Smyth Van Line Inc | Bellevue | WA | 117935 | MC-014786 | T 1981 | C 01 | | |
| Smyth Van Line Inc | Bellevue | WA | 117935 | MC-014786 | T 1981 | C 02 | | |
| Smyth Van Line Inc | Bellevue | WA | 117935 | MC-014786 | T 1981 | C 03 | | |
| Snow Creek Trucking | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Snyder Brothers Motor Freight | Akron | OH | 104025 | MC-003379 | FF<1980 | C 01 | | |
| Snyder Brothers Motor Freight | Akron | OH | 104025 | MC-003379 | FF<1980 | C 02 | | |
| Sodrel Truck Lines Inc | Jeffersonville | IN | 52294 | MC-283584 | Active | C 01 | | |
| Sodrel Truck Lines Inc | Jeffersonville | IN | 52294 | MC-283584 | Active | C 02 | | |
| Sokil Express Lines Ltd | Edmonton | AB | 293708 | MC-191519 | Active | website | C 01 | |
| Solar Transport LC | West Des Moines | IA | 231451 | MC-154872 | Active | website | C 01 | |
| Sonar Transport Inc | West Des Moines | IA | 231451 | MC-154872 | Active | website | C 01 | |
| Sonic Transport | Brooksville | FL | 810876 | MC-359566 | Active | website | C 01 | |
| Soo - Security Motorways | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Sooner | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Sooner Freight Inc | Tulsa | OK | 271650 | MC-175301 | Revoked 2024 | C 01 | | |
| Sooner Freight Lines | Oklahoma City | OK | 0 | MC-000873 | Sold 1946 | C 01 | | |
| Sooner Trucking & Oilfield Services Inc | County Line | OK | 788523 | MC-355332 | Revoked 2009 | C 01 | | |
| Sorrento Express Inc | Buffalo | NY | 16606 | MC-168297 | Revoked 2013 | C 01 | | |
| Sourdough Express | Fairbanks | AK | 125119 | MC-118527 | Active | website | C 01 | |
| Sourdough Express | Fairbanks | AK | 125119 | MC-118527 | Active | website | C 02 | |
| South East Transport Systems | Stienbach | MB | 0 | MC-135303 | NC 1966 | C 01 | | |
| South Eastern Express | Fort Worth | TX | 151679 | MC-118130 | F 1992 | C 01 | | |
| South West Transport | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Columbia | SC | 63419 | MC-111871 | Active | website | O 00 | | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website | C 01 | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website | O 01 | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website | C 02 | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website | O 02 | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website | C 03 | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website | O 03 | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website | C 04 | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website | C 05 | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website | C 06 | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website | C 08 | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website | A 50 | |
| Southeastern Freight Lines Inc | Columbia | SC | 63419 | MC-111871 | Active | website | A 50W | |
| Southeastern Transfer | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Southeastern Transport Inc | Marion | NC | 263935 | MC-172691 | Revoked 2005 | C 01 | | |
| Southern - Plaza Express Inc | Marion | NC | 263935 | MC-172691 | Revoked 2005 | C 03 | | |
| Southern Bulk Haulers Inc | Harleyville | SC | 63420 | MC-119560 | Revoked 2004 | C 01 | | |
| Southern California Express Co | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Southern Cartage | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Southern Express Co | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| Southern Freight Inc | Atlanta | GA | 226118 | MC-164944 | Revoked 2018 | C 01 | | |
| Southern Freight Inc | Atlanta | GA | 226118 | MC-164944 | Revoked 2018 | C 03 | | |
| Southern Messenger | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| Southern Motor Lines | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Southern Moving and Storage Co | San Antonio | TX | 3250673 | MC-1022942 | Active | website | C 01 | |
| Southern Pacific - Intermodal | Naperville | IL | 4175843 | NONE | Not Authorized | C 01 | | |
| Southern Pacific Transport Co | Houston | TX | 79422 | MC-030319 | T 1983 | C 03 | | |
| Southern Pacific Transportation Co | Unknown | XX | 0 | Unknown | Unknown | H 01 | | |
| Southern Pacific Truck Service | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Southern Pacific Truck Service | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| Southern Refrigerated Transport Inc | Texarkana | AR | 276010 | MC-193849 | Revoked 2024 | C 01 | | |
| Southern Region Motor Transportation | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Southern Tank Lines Inc | Lansdowne | MD | 0 | MC-109637 | No record | C 01 | | |
| Southern Tank Transport Inc | Holly Hill | SC | 548304 | MC-270785 | Active | website | C 01 | |
| Southern Tank Transport Inc | Holly Hill | SC | 548304 | MC-270785 | Active | website | C 02 | |
| Southern Tank Transport Inc | Holly Hill | SC | 548304 | MC-270785 | Active | website | C 03 | |
| Southern Tank Transport Inc | Holly Hill | SC | 548304 | MC-270785 | Active | website | C 04 | |
| Southern Transportation Inc | Charleston | SC | 0 | Unknown | Unknown | C 01 | | |
| Southern-Plaza Express | Dallas | TX | 0 | MC-010928 | FF<1980 | C 01 | | |
| Southlake Tank Line Inc | Merrillville | IN | 571134 | MC-278656 | Revoked 2001 | C 01 | | |
| Southland | Unknown | XX | 0 | Unknown | Unknown | ? 01 | | |
| Southland Transportation Co | Boonville | NC | 311711 | MC-199727 | Active | website | C 01 | |
| Southway Trucking Co | Hickory | NC | 218092 | MC-162864 | Revoked 2000 | C 01 | | |
| Southway Trucking Co | Hickory | NC | 218092 | MC-162864 | Revoked 2000 | C 02 | | |
| Southwest Freightlines | El Paso | TX | 2239248 | MC-603837 | Revoked 2008 | C 01 | | |
| Southwest International Freight | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Southwest Motor Freight | Chattanooga | TN | 58969 | MC-138157 | Revoked 1990 | C 01 | | |
| Southwest Refrigerated Lines | Phoenix | AZ | 267289 | MC-188259 | Revoked 1990 | C 02 | | |
| Southwestern Carriers | Saginaw | TX | 205159 | MC-144616 | Revoked 2008 | C 01 | | |
| Southwestern Express | London | ON | 290656 | MC-185883 | IR 2004 | C 01 | | |
| Southwestern Motor Transport Lines | San Antonio | TX | 136555 | MC-080252 | Active | website | C 01 | |
| Southwestern Motor Transport Lines | San Antonio | TX | 136555 | MC-080252 | Active | website | C 02 | |
| Southwestern Motor Transport Lines | San Antonio | TX | 136555 | MC-080252 | Active | website | C 04 | |
| Southwestern Transport Co | Unknown | XX | 0 | Unknown | Unknown | O 01 | | |
| Southwestern Transportation Co | Texarkana | TX | 79443 | MC-059488 | T 1981 | C 01 | | |
| Soverign | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Spade Trucking Inc | Spade | TX | 266919 | MC-331623 | Active | website | C 01 | |
| Sparhawk | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Sparky's Trucking Ltd | Edmonton | AB | 0 | Unknown | Unknown | C 01 | | |
| Sparling's Liquid Transport Inc (NA) | Marine City | MI | 567875 | MC-277549 | None | C 01 | | |
| Sparling's Liquid Transport Inc (NA) | Marine City | MI | 567875 | MC-277549 | None | C 02 | | |
| Sparta LaCroross Truck Lines | Unknown | XX | 0 | Unknown | Unknown | H 01 | | |
| Greer | SC | 97090 | MC-062824 | Sold 2000 | O 00 | | ||
| Spartan Express Inc | Greer | SC | 97090 | MC-062824 | Sold 2000 | C 01 | | |
| Spartan Express Inc | Greer | SC | 97090 | MC-062824 | Sold 2000 | C 02 | | |
| Spartan Express Inc | Greer | SC | 97090 | MC-062824 | Sold 2000 | C 04 | | |
| Spartan Express Inc | Greer | SC | 97090 | MC-062824 | Sold 2000 | C 05 | | |
| Spartan Express Inc | Greer | SC | 97090 | MC-062824 | Sold 2000 | C 06 | | |
| Spartan Express Inc | Greer | SC | 97090 | MC-062824 | Sold 2000 | C 07 | | |
| Spartan Express Inc | Greer | SC | 97090 | MC-062824 | Sold 2000 | C 08 | | |
| Spartan Express Inc | Greer | SC | 97090 | MC-062824 | Sold 2000 | C 09 | | |
| Spartan Express Inc | Greer | SC | 97090 | MC-062824 | Sold 2000 | C 10 | | |
| Spartan Trucking | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Special Commodities Inc | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Special Service Transportation | Medina | OH | 104027 | MC-135653 | Revoked 2022 | C 01 | | |
| Special Transport Service | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Special Trucking Service | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| Speciality Carriers Inc | New Castle | DE | 453818 | MC-265327 | Revoked 1997 | C 01 | | |
| Speciality Transportation Services Inc | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| Specialized Carriers Inc | Austin | TX | 22927 | MC-120633 | Revoked 1984 | C 01 | | |
| Specialized Transport | Tampa | FL | 532930 | MC-215625 | Revoked 2006 | C 01 | | |
| Specified Commoditiy Carriers Inc | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Spector Freight System - Viking Division | St Louis | MO | 0 | MC-035484 | Merged 1980 | C 05 | | |
| Spector Freight System Inc | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 01 | | |
| Spector Freight System Inc | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 03 | | |
| Spector Freight System Inc | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 04 | | |
| Spector Freight System Inc | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 05 | | |
| Spector Freight System Inc | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 06 | | |
| Spector Freight System Inc | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 07 | | |
| Spector Freight System Inc | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 08 | | |
| Spector Freight System Inc | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 09 | | |
| Spector Freight System Inc | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 10 | | |
| Spector Freight System Inc | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 11 | | |
| Spector Freight System Inc | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 12 | | |
| Spector Freight System Inc (Mid-States) | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 02 | | |
| Spector Freight System Inc (Mid-States) | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 03 | | |
| Spector Mid-States | Chicago | IL | 0 | Unknown | Unknown | C 01 | | |
| Spector Red Ball | Chicago | IL | 76418 | MC-069116 | Revoked 1995 | C 08 | | |
| Spee-Dee Delivery Service Inc | St Cloud | MN | 247570 | MC-171133 | Active | C 01 | | |
| Speedway Express Ltd | Unknown | QC | 0 | Unknown | Unknown | C 01 | | |
| Speedway Express Ltd | Unknown | QC | 0 | Unknown | Unknown | C 03 | | |
| Speedway Express Ltd | Unknown | QC | 0 | Unknown | Unknown | C 02 | | |
| Speedway Transports Inc | Bedford | QC | 0 | Unknown | Unknown | C 01 | | |
| Speedy Heavy Hauling | Lethbridge | AB | 0 | Unknown | Unknown | C 01 | | |
| Speedy Heavy Hauling | Lethbridge | AB | 0 | Unknown | Unknown | C 02 | | |
| Speedy Heavy Hauling | Lethbridge | AB | 0 | Unknown | Unknown | C 03 | | |
| Speedy Inc | Indianapolis | IN | 286429 | MC-157044 | Revoked 1994 | C 01 | | |
| Speedy Inc | Indianapolis | IN | 286429 | MC-157044 | Revoked 1994 | C 02 | | |
| Spiers Transport | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| Spindler Bulk Transport Inc | Chester | NY | 26317 | 0 | Unknowm | C 01 | | |
| SPMT | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Sprague Truck Service | Belleville | IL | 111878 | MC-011151 | Revoked 1987 | C 01 | | |
| Springer Transfer Co | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| SPT | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Spur Truck Line Inc | Houston | TX | 187930 | MC-153009 | Revoked 1980 | C 01 | | |
| Spur Truck Line Inc | Houston | TX | 187930 | MC-153009 | Revoked 1980 | C 02 | | |
| Squad | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Squaw Transit Co | Beaumont | TX | 34342 | MC-119176 | Revoked 1995 | C 01 | | |
| SS Trucking | West Des Moines | IA | 1657535 | MC-00609800 | Revoked 2009 | C 01 | | |
| SSC Transports | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| SSF Transport | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| St Johns (Iberville) Transport Co Ltd | Ville St-Laurent | QC | 0 | Unknown | D 1980 | C 01 | | |
| St Johnsbury Trucking Co | St. Johnsbury | VT | 86334 | MC-108473 | Clsd 1993 | C 01 | | |
| St Johnsbury Trucking Co | St. Johnsbury | VT | 86334 | MC-108473 | Clsd 1993 | C 03 | | |
| St Johnsbury Trucking Co Inc | St. Johnsbury | VT | 86334 | MC-108472 | Revoked 1981 | C 02 | | |
| St Johnsbury Trucking Co Inc | St. Johnsbury | VT | 86334 | MC-108472 | Revoked 1981 | C 04 | | |
| St Johnsbury Trucking Co Inc | St. Johnsbury | VT | 86334 | MC-108472 | Revoked 1981 | C 05 | | |
| St Johnsbury Trucking Co Inc | St. Johnsbury | VT | 86334 | MC-108472 | Revoked 1981 | C 05 | | |
| St Johnsbury Trucking Co Inc | St. Johnsbury | VT | 86334 | MC-108472 | Revoked 1981 | C 06 | | |
| St Johnsbury Trucking Co Inc | St. Johnsbury | VT | 86334 | MC-108472 | Revoked 1981 | C 07 | | |
| St Joseph Motor Lines | Atlanta | GA | 0 | Unknown | Unknown | C 01 | | |
| St Lawrence Freightways Inc | Watertown | NY | 15096 | MC-007840 | Revoked 1994 | C 01 | | |
| STA | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Stahly Cartage Co | Edwardsville | IL | 78492 | MC-119702 | Revoked 2012 | C 01 | | |
| Stair | Unknown | XX | 0 | Unknown | Unknown | C 03 | | |
| Stair Cargo Services Inc | Doral | FL | 2219204 | MC-172468 | Not Authorized | C 01 | | |
| Stalcup Trucking | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Stanchuck Trucking Inc | Beebe | AR | 741086 | MC-431903 | Revoked 2004 | C 01 | | |
| Stiles Trucking | Rimby | AB | C 01 | | ||||
| Standard Forwarding Co | East Moline | IL | 1996747 | MC-016536 | Active | website | C 01 | |
| Standard Forwarding Co | East Moline | IL | 1996747 | MC-016536 | Active | website | A 50 | |
| Standard Forwarding Co | East Moline | IL | 1996747 | MC-016536 | Active | website | A 60 | |
| Standard Motor Freight Inc | Pittsburg | PA | 33173 | MC-016340 | Revoked 1987 | C 01 | | |
| Standard Trucking Co | Charlotte | NC | 97197 | MC-039973 | Clsd 1994 | C 01 | | |
| Standard Trucking Co | Charlotte | NC | 97197 | MC-039973 | Clsd 1994 | O 01 | | |
| Standard Trucking Co | Charlotte | NC | 97197 | MC-039973 | Clsd 1994 | C 02 | | |
| Standard Trucking Co | Charlotte | NC | 97197 | MC-039973 | Clsd 1994 | C 03 | | |
| Stan's Inc | Alpena | SD | 133844 | MC-166029 | Active | C 01 | | |
| Stan's Transport | Charleston | SC | 0 | Unknown | Unknown | C 01 | | |
| Stan's Trucking | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Star Fleet Trucking Inc | Middleberry | IN | 493424 | MC-246487 | Active | website | C 01 | |
| Star Freight Inc | Charlotte | NC | 281190 | MC-184260 | Revoked 1998 | C 01 | | |
| Star Motor Freight Lines Inc | Colorado Springs | CO | 190217 | MC-190217 | Revoked 2004 | C 01 | | |
| Star Motor Freight Lines Inc | Colorado Springs | CO | 190217 | MC-190217 | Revoked 2004 | H 02 | | |
| Star Motor Freight Lines Inc | Colorado Springs | CO | 190217 | MC-190217 | Revoked 2004 | C 03 | | |
| Star Transfer | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Star Transfer | Unknown | XX | 0 | Unknown | Unknown | C 02 | | |
| Star Transfer Ltd | North Bay | ON | 0 | Unknown | Unknown | C 01 | | |
| Star Transfer Ltd | North Bay | ON | 0 | Unknown | Unknown | C 02 | | |
| Star Transportation Inc | Nashville | TN | 222454 | MC-157677 | Active | website | C 01 | |
| Star Truck | Montreal | ON | 0 | Unknown | Unknown | ? 01 | | |
| State Line | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| State Motor Freight | Walla Walla | WA | 27503 | MC-128102 | T1982 | H 01 | | |
| State Transportation Inc | Portsmouth | NH | 169783 | MC-145895 | Revoked 2008 | C 01 | | |
| State Trucking Co | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Statewide Carriers | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Stearly's | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Steel City Truck Lines Ltd | Sault Ste. Marie | ON | 270143 | MC-190875 | Revoked 1995 | C 01 | | |
| Steel Haulers Inc | Kansas City | MO | 89087 | MC-119700 | Revoked 1992 | C 01 | | |
| Steele's Transfer Ltd | Calgary | AB | 2872008 | MC-963183 | NNA | C 01 | | |
| Steere Tank Lines Inc | Dallas | TX | 66804 | MC-107064 | Revoked 2001 | C 01 | | |
| Steffke Freight Co | Wausau | WI | 0 | MC-108586 | Sold 1975 | C 01 | | |
| Steffke Freight Co | Wausau | WI | 0 | MC-108586 | Sold 1975 | C 02 | | |
| Steffke Freight Co | Wausau | WI | 0 | MC-108586 | Sold 1975 | C 03 | | |
| Stellar Express Inc | Green Bay | WI | 290280 | MC-172311 | Active | C 01 | | |
| Stephen Izzi Trucking & Rigging Inc | Edison | NJ | 0 | Unknown | Unknown | C 01 | | |
| Stephens Truck Lines Inc | Edison | NJ | 0 | Unknown | Unknown | C 01 | | |
| Stephens Truck Lines Inc | Edison | NJ | 0 | Unknown | Unknown | C 02 | | |
| Sterling Cartage Co | St Paul | MN | 0 | MC-196388 | Revoked 1998 | C 01 | | |
| Sterling Transit Co Inc | Downet | CA | 58976 | MC-097382 | Clsd 1990 | C 01 | | |
| Sterling Transportation | Redmond | OR | 2212570 | MC-172007 | Active | C 01 | | |
| Sternberger Furniture Delivery | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Steve Cagle Trucking Co | Huntsville | AL | 274079 | MC-190361 | Active | website | C 01 | |
| Steve D Thompson Trucking Inc | Winnsboro | LA | 29009 | MC-121658 | Revoked 1991 | C 01 | | |
| Steve D Thompson Trucking Inc | Winnsboro | LA | 29009 | MC-121658 | Revoked 1991 | C 02 | | |
| Steve Marchionda | Penn Yan | NY | 244252 | MC-172849 | Revoked 2014 | C 01 | | |
| Stevens | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Stevens Transport | Dallas | TX | 79466 | MC-150578 | Active | website | C 01 | |
| Stevens Trucking Co | Oklahoma City | OK | 193644 | MC-156009 | Active | website | C 01 | |
| Stevens Van Lines | Saginaw | MI | 72029 | MC-074681 | Active | C 01 | | |
| Stevens Van Lines | Saginaw | MI | 72029 | MC-074681 | Active | C 02 | | |
| Stevens Van Lines | Saginaw | MI | 72029 | MC-074681 | Active | C 03 | | |
| Stevenson Trucking | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Stewart-Stiles Truck Line | Cornelius | OR | 59627 | MC-75623 | Revoked 2009 | C 01 | | |
| Stiles Truck Line | Pasadena | TX | 0 | MC-155435 | Revoked 2020 | C 01 | | |
| Stiles Trucking | Rimby | AB | 0 | Unknown | Unknown | C 01 | | |
| Stone Transportation | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Stonier Trucking Co Inc | Jacksonville | FL | 0 | Unknown | Unknown | C 01 | | |
| Stony Plain Transfer Ltd | Stony Plain | AB | 0 | Unknown | Unknown | C 01 | | |
| Story's Express | Chester | PA | 113657 | MC-16346 | Revoked 1987 | C 01 | | |
| Stott and Davis Motor Express Inc | Auburn | NY | 15100 | MC-099569 | Active | C 01 | | |
| Stott and Davis Motor Express Inc | Auburn | NY | 15100 | MC-099569 | Active | C 02 | | |
| Stott and Davis Motor Express Inc | Auburn | NY | 15100 | MC-099569 | Active | C 03 | | |
| Stout Trucking Co Inc | Urbana | IL | 6447 | MC-128030 | Revoked 1987 | C 01 | | |
| Strang Trucking Co Inc | Coral Gables | FL | 341019 | 198055 | Revoked 2009 | C 01 | | |
| Strawberry's Trucking | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Strickland Transportation Co Inc | Dallas | TX | 0 | MC-059680 | Sold 1978 | C 02 | | |
| Strickland Transportation Co Inc | Dallas | TX | 0 | MC-059680 | Sold 1978 | C 03 | | |
| Strickland Transportation Co Inc | Dallas | TX | 0 | MC-059680 | Sold 1978 | C 04 | | |
| Strickland Transportation Co Inc | Dallas | TX | 0 | MC-059680 | Sold 1978 | C 05 | | |
| Strickland Transportation Co Inc | Dallas | TX | 0 | MC-059680 | Sold 1978 | C 06 | | |
| Structural Transport Inc | Franklin | WI | 179985 | MC-245186 | Revoked 2022 | C 01 | | |
| STS Motor Freight Inc | Philadelphia | PA | 58104 | MC-136773 | Revoked 2009 | C 01 | | |
| Stuckenschneider Trucking | Martinsburg | MO | 192018 | MC-209751 | Revoked 2014 | C 01 | | |
| Sturgis Transportation | Sturgis | SD | 281305 | MC-188641 | Revoked 1991 | C 01 | | |
| Sturm Freightways Inc | Peoria | IL | 71321 | MC-108649 | T 1986 | C 01 | | |
| Su Mik Transfer | St Paul | MN | 333566 | MC-193993 | Revoked 2003 | C 01 | | |
| Subler Transfer Inc | Versailles | OH | 81429 | MC-117883 | T 1981 | C 01 | | |
| Subler Transfer Inc | Versailles | OH | 81429 | MC-117883 | T 1981 | C 02 | | |
| Suburban Motor Freight | Versailles | OH | 81429 | MC-117883 | T 1981 | C 05 | | |
| Suburban Motor Freight Inc | Columbus | OH | 103904 | MC-044447 | Clsd 1987 | C 01 | | |
| Suburban Motor Freight Inc | Columbus | OH | 103904 | MC-044447 | Clsd 1987 | C 02 | | |
| Suburban Motor Freight Inc | Columbus | OH | 103904 | MC-044447 | Clsd 1987 | C 03 | | |
| Suburban Motor Freight Inc | Columbus | OH | 103904 | MC-044447 | Clsd 1987 | C 04 | | |
| Sue Trucking Co | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Suelzer Van Lines Inc | Fort Wayne | IN | 12342 | MC-074755 | Revoked 1989 | C 01 | | |
| Sugar Transport Inc | Savannah | GA | 29608 | MC-115924 | Revoked 1987 | C 01 | | |
| Suhr Transport | Great Falls | MT | 30168 | MC-046313 | Active | website | C 01 | |
| Sullivan Carrier Service | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Sullivan Transfer Co | Dallas | TX | 0 | Unknown | Unknown | C 01 | | |
| Summerford Truck Line Inc | Ashford | AL | 97879 | MC-107960 | Active | website | C 01 | |
| Summit | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Summitt Trucking LLC | Clarksville | IN | 912424 | MC-395146 | Active | website | C 01 | |
| Sun Blest Carriers | Noblesville | IN | 314170 | MC-204659 | Revoked 1999 | C 01 | | |
| Sun Express Inc | Warren | OH | 103903 | MC-119531 | T 1983 | C 01 | | |
| Sunbelt Express | Hickory | NC | 0 | Unknown | Unknown | C 01 | | |
| Sunbelt Express Inc | Florence | SC | 200183 | MC-151480 | Revoked 1987 | C 01 | | |
| Sunbelt Furniture Xpress Inc | Hickory | NC | 97173 | MC-128117 | Active | website | C 01 | |
| Sunbury Transport Ltd | Fredericton | NB | 19190 | MC-150332 | Active | website | C 01 | |
| Sunbury Transport Ltd | Fredericton | NB | 19190 | MC-150332 | Active | website | C 02 | |
| Sunco Carriers | Lakeland | FL | 2220509 | MC-203486 | Not Authorized | C 01 | | |
| Sunco Trucking | Farmington | NM | 161083 | NONE | Unknown | C 01 | | |
| Sundance Freight Lines Inc | Phoenix | AZ | 0 | Unknown | Sold 1979 | C 01 | | |
| Sunflower Carriers Inc | York | NE | 139001 | MC-150592 | Revoked 2003 | C 01 | | |
| Sunflower Carriers Inc | York | NE | 139001 | MC-150592 | Revoked 2003 | C 02 | | |
| Sunflower Express | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Sunflower Lines Inc | Joplin | MO | 0 | Unknown | Unknown | C 01 | | |
| Sunflower Lines Inc | Joplin | MO | 0 | Unknown | Unknown | C 02 | | |
| SunMark (Sunoco) | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Sunrise Express Inc | Grand Island | NE | 256401 | MC-181796 | Active | website | C 01 | |
| Sunrise Transport | Unknown | XX | 0 | Unknown | Unknown | H 01 | | |
| Sunstate Courier Inc | Pompano Beach | FL | 641117 | MC-300278 | Revoked 2003 | C 01 | | |
| Super Cartage | Chicago | IL | 3137673 | MC-97103 | Inactive 2019 | C 01 | | |
| Super Cartage | Chicago | IL | 3137673 | MC-97103 | Inactive 2019 | C 02 | | |
| Super Cartage | Chicago | IL | 3137673 | MC-97103 | Inactive 2019 | C 03 | | |
| Super Service Motor Freight Co Inc | Nashville | TN | 0 | MC-106456 | Sold 1957 | C 01 | | |
| Super Service Motor Freight Co Inc | Nashville | TN | 0 | MC-106456 | Sold 1957 | C 02 | | |
| Super Transport Inc | Boca Raton | FL | 218183 | MC-159435 | Revoked 2006 | C 01 | | |
| Super Transport Inc | Boca Raton | FL | 218183 | MC-159435 | Revoked 2006 | C 02 | | |
| Super Van Service Co Inc | St. Louis | MO | 246353 | MC-174458 | Active | C 01 | | |
| Superior | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Superior Carriers Inc | Oak Brook | IL | 84338 | MC-107544 | Inactive 2019 | C 01 | | |
| Superior Carriers Inc | Oak Brook | IL | 84338 | MC-107544 | Inactive 2019 | C 02 | | |
| Superior Carriers Inc | Oak Brook | IL | 84338 | MC-107544 | Inactive 2019 | C 03 | | |
| Superior Carriers Inc | Oak Brook | IL | 84338 | MC-107544 | Inactive 2019 | C 04 | | |
| Superior Fast Freight | Los Angeles | CA | 58978 | MC-121336 | Revoked 1994 | C 01 | | |
| Superior Fast Freight | Los Angeles | CA | 58978 | MC-121336 | Revoked 1994 | C 02 | | |
| Superior Fast Freight | Los Angeles | CA | 58978 | MC-121336 | Revoked 1994 | C 03 | | |
| Superior Fast Freight | Los Angeles | CA | 58978 | MC-121336 | Revoked 1994 | C 04 | | |
| Superior Fast Freight | Los Angeles | CA | 58978 | MC-121336 | Revoked 1994 | C 05 | | |
| Superior Forwarding Co Inc | St Louis | MO | 77918 | MC-075406 | Revoked 1993 | C 01 | | |
| Superior Forwarding Co Inc | St Louis | MO | 77918 | MC-075406 | Revoked 1993 | C 02 | | |
| Superior Motor Express | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Superior Service | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Superior Tank Lines | Colton | CA | 1885447 | MC-679508 | Active | website | C 01 | |
| Superior Tank Lines | Colton | CA | 1885447 | MC-679508 | Active | website | C 02 | |
| Superior Transfer Inc | Baltimore | MD | 163637 | MC-150274 | NAN | C 01 | | |
| Superior Trucking Co | Birmingham | AL | 92829 | MC-106644 | Revoked 1987 | C 01 | | |
| Superior Trucking Co Inc | Birmingham | AL | 92829 | MC-106644 | Revoked 1987 | C 02 | | |
| Superior Trucking Co Inc | Birmingham | AL | 92829 | MC-106644 | Revoked 1987 | C 03 | | |
| Sure Fire Transport Inc | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Surepior Transfer | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Sure-Way Transport Ltd | Mississauga | ON | 287235 | MC-186969 | Revoked 1996 | C 01 | | |
| Surrat Freight Line | Unknown | XX | 0 | Unknown | Unknown | C 01 | | |
| Suwak Truck Lines | Washington | PA | 37597 | MC-111956 | Sold 1988 | C 01 | | |
| Suwak Truck Lines | Washington | PA | 37597 | MC-111956 | Sold 1988 | C 02 | | |
| Suzanne Transport | Florida | NY | 0 | Unknown | Unknown | C 01 | | |
| Swain and Sons Transports Inc | Memphis | TN | 163952 | MC-145875 | Revoked 2001 | C 01 | | |
| Sward Trucking Inc | Oakdale | CA | 169838 | MC-146045 | Revoked 2011 | C 01 | | |
| Sweeney Brothers Transportation | Chicopee | MA | 55349 | MC-120023 | Sold 2018 | C 01 | | |
| Sweeney Brothers Transportation | Chicopee | MA | 55349 | MC-120023 | Sold 2018 | C 02 | | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | C 01 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | O 01 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | C 02 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | O 02 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | C 03 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | O 03 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | O 04 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | O 05 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | O 06 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | O 07 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | O 08 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | O 09 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | O 10 | |
| Swift Transportation Co Inc | Phoenix | AZ | 54283 | MC-136818 | Active | website | O 11 | |
| Swing Transport Inc | Salisbury | NC | 142116 | MC-115176 | Revoked 2020 | C 01 | | |
| Swing Transport Inc | Salisbury | NC | 142116 | MC-115176 | Revoked 2020 | C 02 | | |
| System 81 Express Inc | Knoxville | TN | 218747 | MC-155723 | Revoked 2003 | C 01 | | |
| System 99 | Oakland | CA | 138169 | MC-098327 | Clsd 1987 | C 01 | | |
| System 99 | Oakland | CA | 138169 | MC-098327 | Clsd 1987 | C 02 | | |
| System 99 | Oakland | CA | 138169 | MC-098327 | Clsd 1987 | C 03 | | |
| System 99 Motor Lines | Unknown | XX | 0 | Unknown | Unknown | C 05 | | |
| System Transport Inc | Spokane | WA | 27935 | MC-107743 | Active | website | C 01 | |
| System Transport Inc | Spokane | WA | 27935 | MC-107743 | Active | website | C 02 | |