The school has been authorized by the International Baccalaureate Organization since 2003 and offers the IB diploma program in grades 11 and 12. The school has approximately 280 students from more than 40 countries. They are instructed in English by a faculty made up of qualified, experienced teachers from the United States of America and other English speaking countries, as well as from Croatia. All class teachers and core subject teachers are native English speakers. The school offers English as a Second Language for non-English speakers, Croatian as mother tongue, and French and German as foreign languages.