Sanitation fleets are the unsung heroes, keeping our streets and more clean. In this Top 10 ranking of private sanitation fleets, we saw very little change compared to 2025. The private fleets remain the same, with only Priority Waste and Recology swapping places. WM ranks at the top of this list and the very top of the private list overall.

The 2026 FleetOwner 500: Private list ranks the most prominent private carriers in the U.S. by total registered power units. FleetOwner breaks these fleets down into categories, either by equipment or by the fleet's main cargo type or segment. This media gallery will focus on private sanitation fleets.

1. WM
2. Republic Services
3. Waste Connections
4. Clean Harbors
5. GFL Environmental
6. Waste Pro USA
7. Casella Waste Systems
8. Rumpke Consolidated Companies
9. Priority Waste (up 1 spot compared to 2025)
10. Recology (down 1 spot)

To learn more about each private fleet, click through the above media gallery. And to request a downloadable copy of the 500 list, please fill out this form.