The School is a member of the Association of International School and draws its staff and students from different nations of the world. Student enrolment figure at inception was 160 boys and girls from 14 nations, in 1983, 953 students from 31 nations were on roll while in 2008, 1250 students from 5 nations were on roll. As at 2014, 1600 students were on roll from 3 nations. As a microcosm of the international community, it fosters among its staff and students, a spirit of tolerance, cooperation and broad outlook.
I.S.I., as we are widely known, has produced distinguished and notable men and women too numerous to mention and are occupying enviable positions in their various callings, all over the world. The school continues to distinguish itself through our students’ excellent performance in local and international examinations and other major Nigerian competitions like the Cowbell National Secondary School Competition Mathematics and Science Olympiads and Olusegun Obasanjo Presidential Library National Arts Competition, among others.