Charterhouse has been an IB World School since November 2010. It offers the IB Diploma Programme. The school is private. The head of the school is John Witheridge.
IB SCHOOLS AND COLLEGES ASSOCIATION
- Malvern College
- The Red Maids' School
- King William's College
- King Edward's Birmingham
- Malvern College
- Cheltenham Ladies College
- Elthorne Park High School
- Cobham Hall
- St Leonards
- King William's College
- Oakham School