- Stuttgart State Academy of Art and Design DEQARINST0444 DE0138 Staatliche Akademie der Bildenden Künste Stuttgart Stuttgart (Germany)
- Stuttgart University of Applied Sciences DEQARINST0504 DE0204 Hochschule für Technik Stuttgart Stuttgart (Germany)
- Sulaiman Al Rajhi Colleges DEQARINST5578 Saudi Arabia
- Sulkhan-Saba Orbeliani University DEQARINST3057 GE0053 სულხან-საბა ორბელიანის უნივერსიტეტი Tbilisi (Georgia)
- Sultan Ageng Tirtayasa University DEQARINST8749 Universitas Sultan Ageng Tirtayasa Serang (Indonesia)
- Sultan Idris Education University DEQARINST8770 Universiti Pendidikan Sultan Idris Tanjung Malim (Malaysia)
- Sultan Qaboos University DEQARINST5562 جامعة السلطان قابوس Muscat (Oman)
- Sumatera Utara University DEQARINST9413 Universitas Sumatera Utara Medan (Indonesia)
- Sumqayit State University DEQARINST5539 Sumqayıt Dövlət Universiteti Sumqayit (Azerbaijan)
- Sumy National Agrarian University DEQARINST3351 Сумський національний аграрний університет Ukraine
- Sumy State University DEQARINST3364 Сумський державний університет Ukraine
- Sunan Gunung Djati State Islamic University DEQARINST9493 Universitas Islam Negeri Sunan Gunung Djati Bandung Bandung (Indonesia)
- Superior Music Conservatory of Gaia DEQARINST5798 PT0084 Conservatório Superior de Música de Gaia Vila Nova de Gaia (Portugal)
- SUPTECH University DEQARINST8788 Université SUPTECH Tunis (Tunisia)
- Surabaya State University DEQARINST6989 Universitas Negeri Surabaya Surabaya (Indonesia)
- Susini College DEQARINST4534 CY0031 Nicosia (Cyprus)
- Süleyman Demirel University DEQARINST2508 TR0093 Süleyman Demirel Üniversitesi Isparta (Türkiye)
- Svendborg International Maritime Academy (SIMAC) DEQARINST0741 DK0033 SIMAC Svendborg (Denmark)
- Swansea University DEQARINST2728 UK0142 Swansea (United Kingdom (Wales))
- Swedish Defence University DEQARINST2327 SE0032 Försvarshögskolan Stockholm (Sweden)