- British Council (Slovakia)

- Cheltenham College (Great Britain)

- Constructor University (Germany)

- Dusemond Study Programmes (Great Britain)
• Bedales School
• Berkhamsted School
• Cheltenham College
• Colchester
• Heriot-Watt University
• Royal Russell School
• Rugby School
• Uppingham School

- Eindhoven University of Technology (the Netherlands)

- ENAE International Business School (Spain)

- Escape Studios (Great Britain)

- ESSCA School of Management (France)

- Experio Summer (Great Britain)

- Fresenius University of Applied Sciences (Germany, Austria)

- GEDU Global Education (Spain, Germany, France, Malta, USA, UAE)
• Schiller International University (USA, France, Germany, Spain)
• ICN Business School (France, Germany)
• GBS Malta (Malta)
• École de Management Appliqué – EMA (France)
• GUC Ajman (UAE)
• MLA College (online)

- Hanze University of Applied Sciences (the Netherlands)

- Leighton Park School (Great Britain)

- Pavol Jozef Šafárik University in Košice (Slovakia)

- Ruthin School (Great Britain)

- Seattle Colleges (USA)

- Socrates Educa International School (Spain)

- Taunton School (Great Britain)

- The American International School-Salzburg (Austria)

- Universität Klagenfurt (Austria)

- University of South Alabama (USA)

- University WSB Merito in Wrocław (Poland)

- Vives University of Applied Sciences (Belgium)

- Webster Vienna Private University (Austria)

- Yago School Málaga (Spain)