| Scarsdale High School |
USA |
Americas |
| Schule Birklehof |
Germany |
Europe and the Mediterranean |
| Schule Schloss Salem |
Germany |
Europe and the Mediterranean |
| Scindia Kanya Vidyalaya |
India |
South Asia and the Gulf |
| Scotch College |
Australia |
Australasia and East Asia |
| Scotch Oakburn College |
Australia |
Australasia and East Asia |
| SEK International School Ciudalcampo |
Spain |
Europe and the Mediterranean |
| Seth Anandram Jaipuria School |
India |
South Asia and the Gulf |
| Shenzhen (Nanshan) Concord College of Sino-Canada |
China |
Australasia and East Asia |
| Shirakatsy Lyceum International Scientific-Educational Complex |
Armenia |
South Asia and the Gulf |
