10 Largest Trucking Companies in the USA by Fleet Size (2025)
10 Largest Trucking Companies in the USA by Fleet Size (2025)
The largest trucking companies in the United States by fleet size are determined by the number of tractors (power units) they operate. The following list is based on the most recent industry rankings for 2025, focusing on for-hire carriers:
| Rank | Company Name | Tractors (Power Units) | Trailers |
|---|---|---|---|
| 1 | FedEx Corp. | 38,384 | 148,585 |
| 2 | United Parcel Service (UPS) | 19,267 | 84,956 |
| 3 | Knight-Swift Transportation | 21,835 | 45,453 |
| 4 | J.B. Hunt Transport Services | 20,500 | 46,300 |
| 5 | Schneider National | 14,500 | 47,003 |
| 6 | Penske Logistics | 10,621 | 42,388 |
| 7 | Ryder System | 11,281 | 46,714 |
| 8 | Werner Enterprises | 9,700 | 34,400 |
| 9 | R+L Carriers | 9,023 | 23,825 |
| 10 | Estes Express Lines | 11,281 | 46,714 |
Notes:
-
Tractor counts include company-owned, lease-to-own, and owner-operator units.
-
Some companies, such as FedEx and UPS, operate both package and freight divisions, contributing to their large fleet sizes.
-
Rankings are based on the most recent data available for 2025.
Key Observations
-
FedEx Corp. and UPS remain the largest by a significant margin, each operating tens of thousands of tractors and trailers.
-
Knight-Swift, J.B. Hunt, and Schneider are the largest truckload carriers.
-
R+L Carriers and Estes Express Lines are among the largest less-than-truckload (LTL) carriers by fleet size.
These companies represent the backbone of freight movement in the U.S., serving a wide range of industries and regions.
Share
