We were proudly preferred by:
- Greek Private Schools
- American College of Athens
- Arsakeio School – Tositsio Foundation
- Public Schools
- European Schools
- Maximilians Gymnasium München
- Wilhelm Gymnasium München
- Gymnasium Bei St. Stephan Augsburg
- Benediktergymnasium Ettal
- College Episcopale Du Surtay Belgium School
- Associations
- Panhellenic Union of Hellenic Post Office Pensioners
- Organisation of Social Welfare & Solidarity municipality Penteli
- Association Argeion In Athens
- Panipirotikos Association
- Mountaineering Club
- KAPI from various Municipalities of Greece
- Scout Associations from various Municipalities of Greece