| Seventy Nine Trucking | OK | Private | 2 | |
| Severson Supply & Rental Co., Inc. | CO | Private | 2 | |
| Shamrock Roofing AND Construction | KS | Private | 2 | |
| Shanks Towing, Fredericksburg Area Impound/Towing, VA | VA | Private | 2 | |
| Sierra Auction - AWS-J1025, AZ | CA | | 2 | |
| Sierra Auction - Luxe Lawns | AZ | | 2 | |
| Somerdale Borough, NJ | NJ | Government | 2 | |
| SOT Truck Leasing, LLC | NY | Private | 2 | |
| Source Power | OH +1 | | 2 | |
| South Central Power Company | OH | | 2 | |
| South Lake County Fire Protection District, CA | CA | Government | 2 | |
| South Sanpete School District | UT | Government | 2 | |
| Southern Armstrong Regional Police Department | PA | Government | 2 | |
| Southern Illinois Power Cooperative | IL | | 2 | |
| Southwest Regional Recreation Authority, VA | VA | Government | 2 | |
| Spartanburg Water System, SC | SC | Government | 2 | |
| SporTran, LA | LA | | 2 | |
| St Johns County Sheriff's Office, FL | FL | Government | 2 | |
| St. Paul Regional Water Services | MN | Government | 2 | |
| St. Thomas, ON | | | 2 | |
| Stafford, TX | TX | | 2 | 2 |
| Stanislaus County - Fleet Services | CA | Government | 2 | |
| State Of New Jersey-NJ | NJ | Government | 2 | 31 |
| State Of Washington - Surplus East | WA | Government | 2 | 2 |
| Staunton, VA | VA | | 2 | 1 |
| Stillwater Public Schools | OK | Government | 2 | |
| Stone Mills Township, ON | | Government | 2 | |
| Storey County Public Works | NV | Government | 2 | |
| Streamwood Village, IL | IL | Government | 2 | |
| Student Transport, Inc., GA | GA | Private | 2 | |
| Suisun Fire Protection District, CA | CA | Government | 2 | |
| Summit County Executive | OH | Government | 2 | |
| Summit Utilities | AR +1 | | 2 | |
| Sunflower Paving Inc. | KS | Private | 2 | |
| Surfside Beach, SC | SC | | 2 | |
| Swango, William | KY | Private | 2 | |
| Tallmadge, OH | OH | | 2 | |
| Taylor's Constuction- Quanta | NC | Private | 2 | |
| TerraStar Inc | OK | Private | 2 | |
| Texas Juvenile Justice Department | TX | Government | 2 | 1 |
| Texas Tech University, TX | TX | Government | 2 | |
| Thayer Power AND Communications | OH | Private | 2 | |
| The Other Guys Truck & Repair | NV | Private | 2 | |
| Thomas Towing & Recovery - Newark Area Impound/Towing, NJ | NJ | Private | 2 | |
| Tillamook County | OR | Government | 2 | |
| Timmins, ON | | | 2 | |
| Topeka, KS | KS | | 2 | |
| Toronto District School Board, ON | | Government | 2 | |
| Town Of Dixfield-ME | ME | Government | 2 | |
| Town Of Huntersville-NC | NC | Government | 2 | 1 |
| Town Of Ithaca Dpw-ny | NY | Government | 2 | |
| Town Of Jerusalem Hwy-NY | NY | Government | 2 | |
| Town Of Naples Hwy-NY | NY | Government | 2 | |
| Town Of New Castle-NY | NY | Government | 2 | |
| Town Of New Marlborough | MA | Government | 2 | |
| Town Of Norton Water And Sewer Department | MA | Government | 2 | |
| Town Of Palm Beach (fl) | FL | Government | 2 | |
| Town Of Swanzey | NH | Government | 2 | |
| Town Of Warner-NH | NH | Government | 2 | |
| Town Of Washington, OK | OK | Government | 2 | |