- Ostbayerische Technische Hochschule Amberg-Weiden DEQARINST0516 DE0221 Amberg (Germany)
- Ostbayerische Technische Hochschule Regensburg DEQARINST0529 DE0234 Regensburg (Germany)
- Ostfalia University of Applied Sciences DEQARINST0581 DE0298 Ostfalia Hochschule für angewandte Wissenschaften Wolfenbüttel (Germany)
- Ostim Technical University DEQARINST7662 TR0225 Ostim Teknik Üniversitesi Ankara (Türkiye)
- Ostwestfalen-Lippe University of Applied Sciences DEQARINST0598 DE0316 Hochschule Ostewestfalen-Lippe Lemgo (Germany)
- Otto von Guericke University of Magdeburg DEQARINST0413 DE0103 Otto-von-Guericke-Universität Magdeburg Magdeburg (Germany)
- Oulu University of Applied Sciences DEQARINST0876 FI0471 Oulun ammattikorkeakoulu Oulu (Finland)
- Oxford Centre for Religion and Public Life DEQARINST8643 Oxford (United Kingdom (England))
- Oxford International Education & Travel Limited DEQARINST9412 UK0832 London (United Kingdom (England))
- Óbuda University DEQARINST1323 HU0027 Óbudai Egyetem (OE) Budapest (Hungary)
- Örebro Theological College DEQARINST8566 SE0056 Örebro teologiska högskola Örebro (Sweden)
- Örebro University DEQARINST2312 SE0015 Örebro universitet Örebro (Sweden)
- Özyeğin University DEQARINST2564 TR0149 Özyeğin Üniversitesi İstanbul (Türkiye)
- P. Stradins Medical College of the University of Latvia College (University of Latvia) DEQARINST1682 LV0048 LU P. Stradina medicinas koledža Jurmala (Latvia)
- P.A.R.T.S. DEQARINST5778 BE0820 Brussels (Belgium (Flemish Community))
- PA College DEQARINST4532 CY0029 Larnaca (Cyprus)
- Pablo de Olavide University DEQARINST0778 ES0008 Universidad Pablo de Olavide Seville (Spain)
- Pablo de Olavide University, Doctoral School DEQARINST6053 Escuela de Doctorado de la Universidad Pablo de Olavide (EDUPO) Sevilla (Spain)
- Pablo de Olavide University, Faculty of Business DEQARINST5982 Facultad de Ciencias Empresariales Sevilla (Spain)
- Pablo de Olavide University, Faculty of Experimental Sciences DEQARINST6001 Facultad de Ciencias Experimentales Sevilla (Spain)