O'Summit International School

A small boutique school in Bryanston, founded in 2008, running a Montessori programme from infancy to age 12 and the Cambridge curriculum from Stage 6 through A Level in the college section.

The campus has three Montessori environments and a separate college environment for the Cambridge route. The pull is the low pupil-to-teacher ratio, the inclusive ethos toward neurodivergent learners, and the smooth bridge from a SAMA Montessori early years into IGCSE and A Level rather than the IEB matric.

Families with children there from preschool describe steady growth in confidence and independence and praise the staff as attentive. The school is small, so families weighing it should match expectations on size of cohort, sport, and peer group. Best fit for families who actively want Montessori in early years and a Cambridge route to UK and global universities, on a smaller scale than the big northern Johannesburg privates.