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