Top 10 Largest US Trucking Companies
UPS and FedEx top trucking revenue rankings, but Knight-Swift runs the largest dedicated truckload fleet — here’s how the measure changes the leader.
Trucks move more than 70% of all freight by weight across the United States, supported by over one million registered carriers and roughly 3.5 million professional drivers. But “largest” means different things depending on how you measure it — rank by revenue and parcel giants dominate; rank by dedicated truckload fleet size and a different name leads entirely. Here’s the full 2026 picture, broken down by what actually matters for shippers.
1. UPS
Operates the largest ground freight network in North America, delivering 22 million packages daily. While UPS dwarfs dedicated carriers on revenue, shippers needing full truckload or dedicated fleet capacity should treat UPS as a parcel and express partner rather than a line-haul truck capacity source.
2. FedEx
FedEx Corporation posts consolidated revenue of $87.7 billion, with its FedEx Freight division alone generating $9.1 billion in 2024 revenue on roughly 30,000 LTL trucks — maintaining its position as the largest LTL carrier in North America.
3. Knight-Swift Transportation
Among companies whose core business is actually selling truck capacity, Knight-Swift runs the largest fleet, with more than 25,000 tractors and over 93,000 trailers built through years of truckload carrier mergers, generating roughly $7.47 billion in 2025 revenue.
4. J.B. Hunt Transport Services
Pioneered intermodal freight transportation and remains a leader combining truck and rail shipping, operating one of the largest intermodal container fleets in North America through major railroad partnerships.
5. XPO Logistics
One of the largest LTL freight carriers in the United States, with continued network expansion across less-than-truckload service segments.
6. Old Dominion Freight Line
One of the most consistently successful LTL carriers in the US, recognized for strong service reliability alongside its scale.
7. Ryder System
Operates the largest commercial fleet management operation in North America, with approximately 189,800 vehicles under rental and fleet management — its truckload division grew 37% year-over-year on expansion in dedicated and logistics services.
8. TFI International
Owns multiple transportation brands including TForce Freight, a major LTL carrier, alongside truckload, package delivery, and logistics operations spanning North America.
9. Estes Express Lines
A major LTL carrier ranking consistently among the largest freight networks in the country, alongside SAIA, R+L Carriers, and Averitt Express in the LTL tier.
10. WM (Waste Management)
Leads the 2026 private fleet rankings with 26,919 trucks — the largest private fleet in the country, though its trucks serve waste and environmental services rather than general freight.
What This Means for Procurement Teams
Revenue rank and capacity rank tell different stories. UPS and FedEx dominate revenue because of consumer parcel volume, not dedicated truck capacity — shippers booking full truckload or dedicated fleet service should evaluate Knight-Swift, J.B. Hunt, or similar dedicated carriers instead.
LTL and truckload require genuinely different carrier relationships. With XPO, Old Dominion, and Estes leading the LTL tier separately from truckload giants like Knight-Swift, shipment size and frequency should drive carrier selection more than overall company size.
Intermodal partnerships add real flexibility. J.B. Hunt’s deep rail partnerships mean shippers with flexible timelines can access meaningfully lower-cost capacity by blending truck and rail — worth evaluating for lanes where speed isn’t the top priority.
FAQ
What’s the difference between LTL and truckload trucking?
Less-than-truckload (LTL) combines multiple shippers’ smaller freight into one truck, while truckload (TL) dedicates an entire trailer to a single shipper’s freight, typically for larger volume shipments.
Why do UPS and FedEx top revenue rankings but not fleet-capacity rankings?
Their revenue comes primarily from consumer parcel and express delivery networks, not from selling dedicated truckload capacity — Knight-Swift and similar carriers actually operate the largest dedicated truckload fleets.
How many trucking carriers operate in the US?
The US has over one million registered motor carriers, with the FMCSA tracking 245,215 registered carriers operating a combined fleet of nearly 6 million commercial vehicles.
Sources
- FreightRun, Largest Trucking Companies in the USA: 2026 Fleet List
- GetTransport, Biggest Trucking Companies in the World 2026 (Ranked)
- Datatruck, The Biggest Trucking Companies for 2026 in the U.S.
- FleetOwner, Top U.S. Private Trucking Fleets by Fleet Size 2026
- TruckAccidentAttorneyNetwork, Largest Trucking Companies in the US (2026)