| A. Duie Pyle Inc. | x | x | x | x | | x | x | x | | x | x | x |
| ABF Freight System Inc. | x | x | x | x | x | x | x | x | x | x | x | x |
| AHC Trucking Co. | x | x | x | x | x | x | | x | | x | x | x |
| ALG Worldwide Logistics | x | x | x | x | | | | | x | x | x | x |
| Atlas World Group | x | | x | x | | | x | | x | x | | x |
| Averitt Express | x | x | x | x | x | x | x | x | x | x | x | x |
| Cassen Transport | | | x | x | | | x | | | x | | x |
| Celadon Trucking | x | x | x | x | x | x | | x | | x | x | x |
| Central Freight Lines | x | x | x | x | x | | x | | | x | | x |
| Commodity Logistics | x | x | x | x | | | x | | x | x | | x |
| Con-Way Transportation Services | x | | x | x | x | x | x | x | | x | x | x |
| Cool Carriers of Florida Inc. | x | x | | | | x | | x | | | | |
| CRST | x | x | x | x | x | x | x | x | x | x | x | x |
| Dedicated Transport | x | x | x | x | | | x | | x | | x | x |
| Denton Cartage Co. Inc. | x | | | | x | | x | | | x | x | |
| DHL | x | x | x | x | x | x | | | | x | x | x |
| Estes Express Lines | x | x | x | x | x | x | x | x | x | x | x | x |
| Exel Transportation Services Inc. | x | x | x | x | x | x | x | x | x | x | x | x |
| ExpressLINK | x | x | x | x | x | x | | x | x | x | | x |
| Falcon Transport | x | x | x | | x | | x | | | x | | x |
| FedEx Custom Critical | x | x | | | | | | | x | x | | x |
| FedEx Express | x | x | x | x | x | x | x | x | x | x | x | x |
| FedEx Freight | x | x | x | x | x | x | x | x | | x | x | x |
| FedEx Trade Networks | x | | x | | x | x | | | | | | x |
| FFE Transportation Services Inc. | x | x | x | x | x | x | x | x | x | x | x | x |
| FMI International | x | x | x | x | x | x | x | | | x | x | x |
| Gainey Transportation Services | x | x | x | x | x | x | x | | | x | x | |
| Givens Companies | x | x | x | x | x | x | x | | | x | x | |
| Great Lakes Logistics (Time Dispatch) | x | x | | x | x | | | x | x | | x | |
| Greyhound PackageXpress | | | x | | | | | | | | | x |
| Groendyke Transport Inc. | x | x | | x | x | | x | | | x | | |
| Hadley Auto Transport | | | | | | | | | | x | | |
| Hassett Air Express | x | x | x | x | x | x | | | | x | x | x |
| Hellmann Worldwide Logistics Inc. | x | x | x | x | x | x | x | x | x | x | x | x |
| J. B. Hunt Dedicated Contract Services | x | x | | | x | | x | | x | x | x | x |
| J.A.T. of Ft. Wayne Inc. | x | x | | | | x | x | x | x | x | x | |
| Jacobson Companies | x | x | | | | | | | x | x | x | x |
| Knight Transportation | x | x | x | x | x | x | | | x | x | x | |
| Landair Transport Inc. | x | x | x | x | x | x | | | | | | |
| Landstar System Inc. | x | x | x | x | | x | | | x | x | x | x |
| Lone Star Transportation | x | | | x | x | | x | | | x | x | x |
| Lynden | x | | x | x | x | | | | x | x | x | x |
| Maersk Logistics | | | x | | x | x | | | x | x | | |
| Market Transport | x | x | | | x | | | | x | x | x | x |
| Marten Transport Ltd. | x | x | | | x | | x | x | x | x | x | x |
| Maverick Transportation | x | x | | | | | x | | | | | |
| McCollister's Transportation | x | x | x | x | x | x | x | x | x | x | | x |
| Megatrux Inc. | x | x | x | x | x | x | x | x | x | x | x | x |
| Milan Express | | x | x | x | x | x | | | x | x | | x |
| New Prime Inc. | x | x | | | | | x | | x | x | x | |
| Nexus Distribution Corp. | x | x | x | x | x | x | x | x | x | x | x | x |
| Old Dominion Freight Line | x | x | x | | | x | | | | x | | x |
| Pitt-Ohio Express | x | x | x | x | x | x | x | x | | x | | x |
| PJAX Inc. | | | x | | | | | | | | | x |
| Quality Distribution | x | | | | x | | x | | x | x | | |
| Roadway Express Inc. | x | x | x | x | x | x | x | x | x | x | x | x |
| Roehl Transport Inc. | x | | | x | x | | x | | | x | x | |
| Ruan Transportation Services | x | x | x | x | x | x | x | x | x | x | x | x |
| Ryder Transportation Services | x | x | x | x | x | x | x | x | x | x | x | x |
| Saia Motor Freight | | | x | x | | | | | | x | | x |
| Sammons Trucking | x | | | x | x | x | | x | | x | x | |
| Schneider National | x | x | x | x | x | x | x | x | x | x | x | x |
| Southeastern Freight Lines | x | x | x | x | x | x | | | | x | | |
| Swift Transportation | x | x | x | x | x | | x | | | x | | |
| Triple Ell Transport | x | x | | | | | x | | x | | x | |
| UPS/Overnite | x | x | x | x | x | x | x | x | | x | x | x |
| US Expedited LLC | | | x | x | | | | | | | | x |
| USXpress | x | x | x | x | x | x | x | x | x | x | x | x |
| Watkins Motor Lines | | | x | x | | x | | | x | x | | x |
| Werner Enterprises | x | x | | | x | | x | | x | x | x | x |
| Yellow Transportation | x | x | x | x | x | x | | | x | x | x | x |
| YRC Regional Transportation (USF) | x | x | x | x | | x | x | x | | x | | x |