The trucking industry is often pictured as dominated by large, recognizable national carriers, but the actual data tells a very different story. The United States has over 4.29 million registered motor carrier entities, and the overwhelming majority are small operations, far from the handful of household-name fleets that come to mind first.
In This Guide
1. The Numbers
Of the over 4.29 million registered motor carrier entities in the US, over 90% operate with 10 or fewer trucks, and a substantial share of those are single-truck owner-operators running their own authority. Large national carriers, the names most people would immediately recognize, represent a small fraction of total registered carriers despite moving a disproportionately large share of total freight tonnage.
2. Why the Industry Is So Fragmented
Trucking has relatively low barriers to entry compared to many other transportation and logistics businesses, a single truck and a CDL, covered in our owner-operator vs. small fleet comparison, is enough to start a legally operating carrier. This accessibility is part of why the industry has remained so fragmented rather than consolidating into a smaller number of large players the way some other industries have.
3. Single-Truck Owner-Operators
Single-truck owner-operators make up a substantial share of all registered carriers, representing the most common entry point into trucking company ownership. These operations typically combine the roles of driver, dispatcher, and bookkeeper into one person, trading lower revenue ceiling for total control and minimal overhead.
4. Small Fleets (2-10 Trucks)
Small fleets, the next tier up, have taken on at least one additional driver or truck beyond the founding owner-operator but still typically operate without the dedicated departments, safety, HR, dedicated dispatch, that larger carriers maintain. This tier represents a meaningful share of total carriers and is where much of the industry's organic growth from solo operators happens.
A highly fragmented market means constant turnover, new carriers starting, some failing, some growing, which creates ongoing opportunity both for new entrants and for vendors and service providers selling into the industry.
5. Larger Carriers
Large carriers, operating hundreds or thousands of trucks, represent a small fraction of total registered entities but move a disproportionately large share of total freight tonnage, reflecting significant economies of scale in areas like fuel purchasing, insurance, and driver recruiting that smaller operations can't access to the same degree.
6. What This Means in Practice
For anyone selling into or competing within the trucking industry, this fragmentation means the addressable market isn't concentrated in a handful of large accounts, it's spread across millions of small, independently-run businesses, each making their own purchasing and operating decisions largely independently of what larger carriers are doing.
Frequently Asked Questions
What percentage of US trucking companies operate with 10 or fewer trucks?
Over 90% of the 4.29 million+ registered US motor carrier entities operate with 10 or fewer trucks, with a substantial share being single-truck owner-operators.
Why is the trucking industry so fragmented?
Trucking has relatively low barriers to entry compared to many transportation businesses, a single truck and CDL is enough to start a legally operating carrier, which has kept the industry fragmented rather than consolidating into a small number of dominant players.
Do large carriers move most of the freight despite being a small share of total carriers?
Yes. Large carriers represent a small fraction of total registered entities but move a disproportionately large share of total freight tonnage, reflecting economies of scale in fuel purchasing, insurance, and driver recruiting.
This guide is for informational purposes. Regulations, fees, and requirements change — always verify current information directly with the FMCSA, your state DOT, and qualified professional advisors before making business decisions.