About us

OSC is the world leader in IB (International Baccalaureate) revision and review. We provide Revision Courses, Summer Courses and produce IB Study & Revision Publications.

We are honored by the level of trust that is placed in us by parents, students and the wider IB community. For over 25 years, we have been dedicated to offering high quality IB support built upon a strong academic foundation. This is recognized in our British Accreditation Council (BAC) report.

Over 70% of our students join OSC because a friend, family member or teacher has recommended that they attend; what they tell us when they leave truly inspires us ...