Summit School Services
Conventional yellow school bus | |
| Parent | I Squared Capital |
|---|---|
| Founded | 1917 |
| Headquarters | 27755 Diehl Road Warrenville, Illinois |
| Service area | 32 states in the United States |
| Service type | School bus contractor |
| Fleet | 15,500 (September 2020) |
| Website | careers |
Summit School Services (formerly Durham School Services) is a school bus operator providing contracted student transportation throughout the United States, based in Warrenville, Illinois, and currently operating in 32 states. Founded in 1917 with three buses in the San Gabriel Valley, it became a subsidiary of National Express in 1999. In July 2025 it was sold to I Squared Capital.
North American sister companies are Stock Transportation in Canada and Petermann Bus in the Great Lakes region.
As of September 2017, it operated 15,500 buses in 32 states.