| Delegation name | Assigned school |
| Afghanistan | International School of Helsinki |
| Algeria | Friedrich-Abel-Gymnasium |
| Amnesty International | Hermann-Billung-Gymnasium |
| Angola | American Int. School of Kingston |
| Arab League | International School of Düsseldorf |
| Argentina | Robert College |
| Armenia | Lycée Français International de l’AFLEC |
| Australia | Dhirubhai Ambani Int. School |
| Austria | St. John’s International School |
| Azerbaijan | International School of Amsterdam |
| Bahrain | Amman Baccalaureate School |
| Bangladesh | Am. Creativity Academy-Girls Campus |
| Belarus | Green School Bali |
| Belgium | United World College Maastricht |
| Benin | Hisar School (HEV) |
| Bolivia | The American International School of Lagos |
| Bosnia & Herzegovina | ACS Abu Dhabi |
| Botswana | Marymount Int. School UK |
| Brazil | International School of The Hague |
| Bulgaria | Beijing Weland |
| Burkina Faso | Aiglon College |
| Burundi | Robert College |
| Cambodia | International School of Paris |
| Cameroon | College du Leman |
| Canada | Colegio de Inglaterra |
| Central African Republic | Brillantmont International School |
| Chad | The British Schools of Montevideo |
| Chile | International School of Tanganyika |
| China | Özel Izmir Amerikan Koleji |
| Colombia | International School of Brussels |
| Congo | Ekpedeftiki Anagennisi |
| Côte d’Ivoire | American Int. School Bucharest |
| Cuba | Internatsgymn. Schloß Torgelow |
| Cyprus | Arsakeia Schools of Patras-Athens- Thess/niki |
| Czech Republic | American School of Bombay |
| Denmark | The American International School of Lagos |
| Dominican Republic | Deutsche Schule Athen |
| DR Congo | Alconbury American High School |
| Ecuador | St. Andrew’s College |
| Egypt | Rijnlands Lyceum Wassenaar |
| Eritrea | North London Collegiate School Dubai |
| Estonia | Pacific American School |
| Ethiopia | ESSARP |
| European Union | Craighouse School |
| Fiji | International School of Florence |
| Finland | International School of Tanganyika |
| France | International School of Amsterdam |
| Gabon | Centre Internationale De Valbonne |
| Georgia | Leysin American School |
| Germany | Colegio Americano de Quito |
| Ghana | Costeas-Geitonas School |
| Greece | Frankfurt International School |
| Greenpeace | Frankfurt International School |
| Guatemala | Pierce – The Am. College of Greece |
| Haiti | Aga Khan Mzizima Secondary School |
| Holy See | Pierce – The Am. College of Greece |
| Honduras | Einhard Gymnasium Aachen |
| Human Rights Watch | Lycée Français Vincent van Gogh |
| Hungary | Escola Americana do Rio de Janeiro |
| Iceland | Advanced Learning Schools |
| ILO | Bilkent Laboratory Int. School |
| India | Bonn International School |
| Indonesia | Rijnlands Lyceum Wassenaar |
| Iran | American School of Kuwait |
| Ireland | Newton International Academy |
| Israel | Agora International School |
| Italy | Lycée St. Joseph d’Istanbul |
| Jamaica | Kulosaari Upper Secondary School |
| Japan | Mont’Kiara International School |
| Jordan | Lancaster Country Day School |
| Kazakhstan | Agora International School |
| Kenya | International School Eindhoven |
| Kuwait | British School in The Netherlands |
| Lao PDR | British School in The Netherlands |
| Latvia | Anatolia College |
| Lebanon | Ecole Internationale “Le Verseau” |
| Liberia | Tashkent International School |
| Libya | Nesbru Videregående Skole |
| Luxembourg | Branksome Hall |
| Madagascar | Kumon Leysin Academy of Switzerland |
| Malawi | Lakenheath High School |
| Malaysia | Kurt-Schwitters-Gymnasium |
| Mali | La Jolla Country Day School |
| Malta | Queen Elizabeth’s Grammar School |
| Mauritania | Am. Overseas School of Rome |
| Mexico | Zurich International School |
| Mongolia | Nesbru Videregående Skole |
| Montenegro | Aloha College |
| Morocco | Hermann-Böse-Gymnasium |
| Mozambique | Anglo-American School of Moscow |
| Myanmar | Int. School of the Basel Region AG |
| Namibia | Mandoulides School |
| Netherlands | Khartoum Int. Community School |
| New Zealand | American School of Valencia |
| Nicaragua | Marymount Int. School UK |
| Niger | International School of Brussels |
| Nigeria | Kurfürst-Friedrich-Gymnasium |
| Norway | Taipei American School |
| Oman | HAEF Athens Coll. Psychico |
| Pakistan | SHAPE International High School |
| Palestinian Authority | American IS of Mozambique |
| Panama | Int. School of the Basel Region AG |
| Paraguay | Özel Izmir Amerikan Koleji |
| Peru | Int. School of the Basel Region AG |
| Philippines | American School of Barcelona |
| Poland | Koç Okulu |
| Portugal | Oostvaarders College |
| Qatar | Centre Internationale De Valbonne |
| Rep. of Korea (South) | Üsküdar American Academy |
| Romania | St. Andrew’s College |
| Russian Federation | Dubai International Academy |
| Rwanda | Wiesbaden High School |
| Saint Vincent & the Grenadines | Wiesbaden High School |
| Saudi Arabia | American School of The Hague |
| Senegal | Advanced Learning Schools |
| Sierra Leone | ACS Cobham International School |
| Singapore | Southbank International School |
| Slovakia | Isikkent High School |
| Slovenia | Thomas-Mann-Schule |
| Solomon Islands | ACS (International) Singapore |
| Somalia | Am. Community School of Athens |
| South Africa | Experimental HS Beijing |
| Spain | North London Collegiate School Dubai |
| Sri Lanka | Nicolaus-Cusanus-Gymn. |
| Sudan | St. Paul’s School |
| Sweden | British Int. School Cairo |
| Switzerland | Carlucci AIS Lisbon |
| Syrian Arab Rep. | Hwa Chong Institution (High School Section) |
| Tajikistan | Löwenrot Gymnasium |
| Tanzania, United Rep. | HAEF Athens Coll. Psychico |
| Thailand | Brussels American High School |
| Togo | Pacific American School |
| Tunisia | Marymount Int. School Rome |
| Turkey | Lycée Français International de l’AFLEC |
| Turkmenistan | American School of Madrid |
| Uganda | Queen Elizabeth’s Grammar School |
| Ukraine | Columbia Union Academies |
| UNDP | Ecole Internationale “Le Verseau” |
| UNEP | Bilkent Laboratory Int. School |
| UNESCO | Liceo Scientifico Statale Farnesina |
| UNICEF | SHAPE International High School |
| United Arab Emirates | St. Andrew’s College |
| United Kingdom | Kaiserslautern High School |
| United States of America | International School of Stavanger |
| UN Women | Chisipite Senior School |
| Venezuela | Wellington College |
| Viet Nam | Hisar School (HEV) |
| WHO | I.M. Panagiotopoulos School |
| World Bank | Experimental HS Beijing |
| WTO | St. John’s International School |
| Yemen | ACS Abu Dhabi |
| Zimbabwe | British Int. School of Jeddah |
