The 2025 FleetOwner 500: Private list ranks the most prominent private carriers in the U.S. by total registered power units. Released in April, the FO500 saw many ranking shifts after a busy 2024 of carrier acquisitions, mergers, consolidations, and expansions.
In addition to ranking the largest private fleet operations overall, FleetOwner breaks down these companies into categories based on equipment, cargo types, and industry segments. This media gallery focuses on manufacturing fleets.
See also: 2025 FleetOwner 500: Top private landscaping/tree care fleets
Compared to 2024, this top 10 list contains the same fleets but in a different order. Masco and Iron Mountain Information Management remain in the top positions. J. R. Simplot, Sherwin-Williams, and MedTrans all shifted to the No. 3, 4, and 5 spots. Goodyear rose in the ranks to No. 6, while Cummins and Bayer Crop Science US jumped two spots to No. 7 and 8, respectively. Falling in the rankings, WillScot Mobile Mini Holdings and Ashley Distribution Services finish at No. 9 and 10.
To learn more about each private fleet, click through the above media gallery.
