It is an International Baccalaureate (IB) World School founded in 1981 and offers IB curriculum from Kindergarten to Grade 12. and is located along Preston Road and Depot Road, in the Alexandra neighbourhood of Singapore.

[citation needed] ISS is an Apple Macintosh platform school with computer labs and a laptop program.

[7] The school cited the COVID-19 pandemic for its lower than expected pass rate for that years graduating cohort.

ISS International School believes that accreditation in its many forms allows them to engage in a critical evaluation of their effectiveness as educators as well as develop their curriculum to meet the needs of their students.

Dr. Margaret Alvarez will join WASC in the summer of 2021 as the new Director of International Accreditation Services, on completion of her current tenure as Head of School of ISS International School, Singapore.