The site includes a hospital, children's treatment centre, school and research institute, with satellite services located throughout eastern Ontario.

CHEO, which is affiliated with the University of Ottawa, provides complex pediatric care, research and education.

In 2024, Forbes Magazine named CHEO the best place to work in Canadian health care.

CHEO has also been recognized consistently as a National Capital Region Top Employer for more than a decade.

CHEO was formed in 1974 due to the efforts of the community requesting a bilingual healthcare centre for children and the approval by the provincial government.