The school is organized into the Elementary School for Pre-Kindergarten to Grade 5, and Secondary School for Grades 6 to 12.
The ISE campus is divided by Elementary School and Early Childhood, and Secondary School,  two gyms, soccer fields and a Fine Art center. 
The Fine Art Center has an auditorium, music classrooms, exhibition areas and conference rooms. The secondary school building has 3 floors with a secondary school library, a media center, three science laboratories, two computer labs,  an art room and IB art room, and 12 regular classrooms. 
The elementary school campus has 4 buildings with an elementary school library, a computer lab, music rooms, two science labs and 19 regular classrooms. 
For the outdoor sports facilities, ISE has two volleyball and basketball courts, two soccer fields and several playgrounds for preschool children. ISE has a swimming pool or tennis court at the Burapha Golf Club House.