Zahrat Al-Sahraa International School  Zahrat Al-Sahraa International School, or ZSIS, is an International school for girls and boys, K-12, located in Jeddah, Saudi Arabia. It was founded by Najah Kheirallah in 1988, to educate students from across the Middle East. There are more than 2000 students enrolled at ZSIS. The school offers an American-curriculum.