| School Name | Country | Region |
|---|---|---|
| Stanford Lake College | South Africa | Africa |
| Starehe Boys’ Centre and School | Kenya | Africa |
| Step by Step School | India | South Asia and the Gulf |
| Stiftung Louisenlund | Germany | Europe and the Mediterranean |
| Strathcona-Tweedsmuir School | Canada | Americas |
| Sunbeam School Lahartara | India | South Asia and the Gulf |
| Sunbeam Suncity (School & Hostel) | India | South Asia and the Gulf |
| Sunshine Montessori School | Canada | Americas |
| Tamagawa Academy | Japan | Australasia and East Asia |
| The Affiliated High School of Peking University’s Dalton Academy | China | Australasia and East Asia |
