| Bahrain Bayan School | Angola, Georgia, Myanmar, Switzerland |
| Dante Alighieri High School | FAO - Food and Agriculture Organization, Iraq, Norway, Panama, Philippines, Somalia |
| Deledda International School | Antigua and Barbuda, Chad, Cyprus, France, Lebanon, Malaysia, Sweden |
| Deutsche Schule Genova | China, Guatemala, Iceland, Singapore |
| I.T.E. Manzoni | Estonia, Greenpeace, Palestine |
| IIS Einaudi-Casaregis-Galilei | Algeria, Bolivia, Lithuania, Mauritius, New Zealand, Serbia, Yemen |
| Ipssa “Nino Bergese” | Armenia, Saudi Arabia |
| Liceo Classico e Linguistico C.Colombo | Austria, Jordan, Taiwan |
| Liceo Italiano di Istanbul (IMI) | Human Rights Watch, United States |
| Liceo Linguistico “Alessandro Manzoni” | Honduras, Indonesia, Syria, UNESCO |
| Liceo Linguistico Internazionale G.Deledda | Afghanistan, Australia, Botswana, Chile, Congo, Cuba, Denmark, Ecuador, India, Iran, Ireland, Japan, Kazakhstan, Madagascar, Mexico, North Korea, Russian Federation, Saint Vincent and the Grenadines, Senegal, Spain, Tunisia, UNHCR, United Arab Emirates, Venezuela, World Wildlife Fund, Zimbabwe |
| Liceo Scientifico G.D.Cassini | Cambodia, Dominican Republic, Israel, Nigeria, Portugal |
| Liceo Statale S.Pertini | Egypt, Ghana, Haiti, Netherlands |
| National Orthodox School | Canada, Costa Rica, Italy, Niger, Pakistan |
| Rosary Sisters’ High School | Greece, Peru, Thailand |
| Schule Schloss Salem | Belgium, Ethiopia, Malta, Turkey |
| Ted Bursa Koleji | Bangladesh, Burkina Faso, Colombia, Luxemburg |
| The International School in Genoa | Germany, Kuwait, Spain, World Bank |
| The Koç School | Brazil, Libya, Morocco, Republic of Korea, United Kingdom, UNODC - United Nations Office on Drugs and Crime, Viet Nam |
| Ulus Jewish School | South Africa |
