Established in 1993 with 67 students, KISU has grown steadily over time. It currently accommodates about 600 students representing 60 nationalities. State-of-the-art facilities include four science labs, three computer labs, three music rooms, three performance areas, an indoor gym, outdoor basketball court, 25 metre eight lane competition swimming pool, two libraries, smart boards in most classrooms and a five acre playing field. It has accreditation status with CIS, NEASC and IBO.
Students participate in an extensive range of extracurricular activities including outdoor education and overseas trips, to diverse destinations such as The UK, France, Italy, Mount Kilimanjaro and a yearly ski trip in Europe. The holistic education also fosters involvement in community building activities.