- Silesian School of Economics and Languages in Katowice DEQARINST2080 PL0438 Wyższa Szkoła Zarządzania Marketingowego i Języków Obcych w Katowicach Katowice (Poland)
- Silesian University of Technology in Gliwic DEQARINST1933 PL0145 Politechnika Śląska w Gliwicach Gliwice (Poland)
- Silkway International University DEQARINST3195 Международный университет Silkway Shymkent City (Kazakhstan)
- Simon Kuznets Kharkiv National University of Economics DEQARINST3412 Харківський національний економічний університет імені Семена Кузнеця Ukraine
- Sinop University DEQARINST2507 TR0092 Sinop Üniversitesi Sinop (Türkiye)
- Sivas Cumhuriyet University DEQARINST2444 TR0029 Sivas Cumhuriyet Üniversitesi Sivas (Türkiye)
- SKEMA Business School (Comue Université Côte d'Azur) DEQARINST4583 FR0423 Lille (France)
- Slovak Medical University in Bratislava DEQARINST2391 SK0010 Slovenská Zdravotnícka Univerzita v Bratislave Bratislava (Slovakia)
- Slovak University of Agriculture in Nitra DEQARINST2407 SK0026 Slovenská Poľnohospodárska Univerzita v Nitre Nitra (Slovakia)
- Slovak University of Technology in Bratislava DEQARINST2397 SK0016 Slovenská Technická Univerzita v Bratislave Bratislava (Slovakia)
- SMK University of Applied Sciences DEQARINST1637 LT0038 Viešoji istaiga Socialiniu mokslu kolegija Klaipeda (Lithuania)
- SMOLENSK STATE MEDICAL UNIVERSITY DEQARINST7516 Федеральное государственное бюджетное образовательное учреждение высшего образования "Смоленский государственный медицинский университет" Министерства здравоохранения Российской Федерации SMOLENSK (Russia)
- Social Integration State Agency College DEQARINST1679 LV0043 Socialas integracijas valsts agenturas koledža Jurmala (Latvia)
- Social Sciences University of Ankara DEQARINST2596 TR0182 Ankara Sosyal Bilimler Üniversitesi Ankara (Türkiye)
- Social-Economic Higher School in Gdańsk DEQARINST4781 PL0396 Wyższa Szkoła Społeczno-Ekonomiczna w Gdańsku Gdańsk (Poland)
- Sofia University St. Kliment Ohridski DEQARINST0160 BG0026 Софийски университет "Св. Климент Охридски" Sofia (Bulgaria)
- Sogn og Fjordane University College DEQARINST1794 NO0030 Høgskulen i Sogn og Fjordane Sogndal (Norway)
- Sokhumi State University DEQARINST3020 GE0051 სოხუმის სახელმწიფო უნივერსიტეტი Tbilisi (Georgia)
- Sokoine University of Agriculture DEQARINST8766 Morogoro (Tanzania)
- Sola Scriptura College of Theology DEQARINST1344 HU0062 Sola Scriptura Lelkészképző és Teológiai Főiskola (SSTF) Biatorbágy (Hungary)