| Conference Number | School Name | 1st Delegation | 2nd Delegation | 3rd Delegation |
| 1 | Australian Schools | Argentina | ||
| 2 | St. Christopher's School | Australia | ||
| 3 | Antwerp International School | Thailand | ||
| 4 | British School of Brussels | Nepal | ||
| 5 | Brussels American High School | UNEP | ||
| 6 | College Saint Benoît de Maredsous | Trinidad & Tobago | ||
| 7 | Ecole Internationale "Le Verseau" | Greenpeace | ||
| 8 | Institute Saint Andre | Guinea | ||
| 9 | International School of Brussels | Denmark | Georgia | |
| 10 | SHAPE Int. School German Section | Czech Republic | ||
| 11 | SHAPE International School | Angola | ||
| 12 | St. John's International School | Bangladesh | ||
| 13 | Escola Americana do Rio de Janeiro | Jamaica | ||
| 14 | St. Paul's British School | Malaysia | ||
| 15 | Branksome Hall | Tajikistan | ||
| 16 | George S. Henry Academy | Croatia | Friends of the Earth | |
| 17 | Lakefield District Secondary School | Central African Republic | ||
| 18 | Peterborough Collegiate | Mauritius | ||
| 19 | International School of Beijing | United Rep. of Tanzania | ||
| 20 | Pagkyprion Gym/Acropolis Lyceum | Seychelles | ||
| 21 | The English School | Bahrain | ||
| 22 | Copenhagen International School | Poland | Brunei Darussalam | |
| 23 | Academia Cotopaxi AIS | Algeria | ||
| 24 | Colegio Americano de Quito | Paraguay | ||
| 25 | American Int. School in Egypt | Greece | WTO | |
| 26 | British Int. School Cairo | Malta | ||
| 27 | Cairo American College | DPR Korea (North) | ||
| 28 | Schutz American School | Saint Lucia | ||
| 29 | International School of Helsinki | Mexico | ||
| 30 | Kulosaari Upper Secondary School | United Arab Emirates | ||
| 31 | American School of Paris | Chile | ||
| 32 | Centre Internationale De Valbonne (ASEICA) | Turkey | ||
| 33 | Cite Scolaire Int. de Lyon | Namibia | ||
| 34 | Institut Notre Dame | Myanmar | Grenada | |
| 35 | Int. School of Fontainebleau | Côte d'Ivoire | ||
| 36 | International School of Nice | Yemen | ILO | |
| 37 | International School of Paris | Rwanda | ||
| 38 | Lycée International American Section | Nicaragua | ||
| 39 | Ansbach Amerikanische Schule | Papua New Guinea | ||
| 40 | Baumholder Am. High School | Finland | Human Rights Watch | |
| 41 | Bismarckschule | Suriname | ||
| 42 | Bitburg American High School | Philippines | ||
| 43 | Bonn International School | Norway | ||
| 44 | Carl Benz & Geschw. Scholl Gymn. | Benin | ||
| 45 | Einhard Gymnasium Aachen | Burkina Faso | ||
| 46 | European School Munich | Swaziland | ||
| 47 | Frankfurt International School | Andorra | ||
| 48 | Friedrich-Abel-Gymnasium | Togo | ||
| 49 | Giessen American High School | Liechtenstein | ||
| 50 | Gymnasium Isernhagen | Antigua & Barbuda | ||
| 51 | Gymnasium Wentorf | Republic of Moldova | ||
| 52 | Hanau American High School | UNHCR | ||
| 53 | Hermann-Billung-Gymnasium Celle | Sweden | ||
| 54 | Hermann-Böse-Gymnasium | Cameroon | ||
| 55 | International School of Düsseldorf | Bhutan | ||
| 56 | International School of Hamburg | Guinea Bissau | ||
| 57 | Internatsgymn. Schloß Torgelow | New Zealand | ||
| 58 | John F. Kennedy School | Chad | ||
| 59 | Kaiserslautern American High School | UNHCHR | International Red Cross (ICRC) | |
| 60 | Käthe-Kollwitz-Schule | Monaco | ||
| 61 | Kurfürst-Friedrich-Gymnasium | Marshall Islands | ||
| 62 | Kurt-Schwitters-Gymnasium | Guatemala | ||
| 63 | Landschulheim am Solling | Panama | ||
| 64 | Mannheim American High School | Fiji | ||
| 65 | Martin Luther Gymnasium | Bahamas | ||
| 66 | Munich International School | Iraq | ||
| 67 | Nicolaus- Cusanus- Gymnasium | Uzbekistan | ||
| 68 | Patch American High School | Iceland | ||
| 69 | Schule Schloß Salem | China | OPCW | |
| 70 | Schulzentrum Lerchenstraße | Ukraine | ||
| 71 | Thomas-Mann-Gymnasium | Belize | ||
| 72 | Wiesbaden High School | Lesotho | ||
| 73 | Würzburg American High School | Israel | ||
| 74 | Am. Community School of Athens | Estonia | ||
| 75 | Costeas-Geitonas School | Belarus | ||
| 76 | Deutsche Schule Athen | Botswana | ||
| 77 | Geitonas School | Egypt | ||
| 78 | HAEF Athens Coll.-Psychico College | Vanuatu | UNIDO | |
| 79 | Mandoulides School | Bulgaria | ||
| 80 | American Int. School of Budapest | Cuba | ||
| 81 | American School of Bombay | Costa Rica | UNDP | |
| 82 | Dhirubhai Ambani International School | Rep. of Korea (S) | ||
| 83 | Surabaya International School | Timor-Leste | ||
| 84 | St. Andrew's College | United Kingdom | Saint Vincent & the Grenadines | |
| 85 | Sutton Park School | Eritrea | ||
| 86 | Am. Overseas School of Rome | Ethiopia | FAO | |
| 87 | International School of Florence | Honduras | Slovenia | |
| 88 | International School of Milan | Zambia | Cape Verde | |
| 89 | Marymount Int. School Rome | Tunisia | ||
| 90 | St. Stephen's School | Morocco | ||
| 91 | Kumon Kokusai Gakuen | Armenia | ||
| 92 | American Community School Amman | Nigeria | ||
| 93 | Amman Baccalaureate School | Mongolia | ||
| 94 | American Int. School, Kuwait | Equatorial Guinea | ||
| 95 | American School of Kuwait | Syrian Arab Republic | IMF | |
| 96 | Universal American School | Bolivia | ||
| 97 | Alice Smith School | Kiribati | ||
| 98 | Garden International School | Holy See | ||
| 99 | Mont'Kiara International School | Somalia | ||
| 100 | American School Foundation AC | Viet Nam | UNCHS | |
| 101 | International School of Monaco | El Salvador | ||
| 102 | International School of Curaçao | Madagascar | ||
| 103 | New Zealand Schools | Lebanon | ||
| 104 | International School of Stavanger | Ghana | ||
| 105 | Nesbru Videregående Skole | Ecuador | ||
| 106 | Skagerak International School | Maldives | ||
| 107 | Karachi American School | Lao PDR of | ||
| 108 | International School of Panama | Sierra Leone | Gabon | |
| 109 | International School Manila | Iran | ||
| 110 | Carlucci American Int. School Lisbon | Spain | ||
| 111 | American School of Doha | Guyana | ||
| 112 | Qatar Academy | Dominica | ||
| 113 | InterExchange Korea | Canada | ||
| 114 | Seoul International School | Senegal | ||
| 115 | British Int. School of Jeddah | Oman | ||
| 116 | Hwa Chong Institution | Tonga | ||
| 117 | Am. Int. School of Johannesburg | Zimbabwe | ||
| 118 | American Int. School of Cape Town | San Marino | ||
| 119 | American School of Barcelona | Kenya | ||
| 120 | American School of Las Palmas | Jordan | ||
| 121 | American School of Madrid | Niger | ||
| 122 | Benjamin Franklin Int. School | Kuwait | UNIFEM | |
| 123 | International College Spain | Venezuela | ||
| 124 | College du Leman | Mauritania | ||
| 125 | Ecole International Brillantmont | Palau | ||
| 126 | International School of Bern | Djibouti | ||
| 127 | Kumon Leysin Academy of Switzerland | Romania | IFAD | |
| 128 | Leysin American School | Sudan | OCHA | |
| 129 | The Riverside School | Cambodia | ||
| 130 | Zurich International School | Hungary | ||
| 131 | Hsinchu American School | Solomon Islands | ||
| 132 | International School of Tanganyika | Liberia | ||
| 133 | AFNORTH International School | Colombia | Médecins sans Frontières | |
| 134 | American School of The Hague | DR Congo | ||
| 135 | Bonaventuracollege | Micronesia, Federated States | ||
| 136 | British School in The Netherlands | India | ||
| 137 | Christelijk Gymnasium Sorghvliet | Belgium | ||
| 138 | Deutsche Int. Schule Den Haag | Japan | ||
| 139 | Gymnasium Beekvliet | Italy | ||
| 140 | Gymnasium Haganum | South Africa | Palestinian National Authority | |
| 141 | Het Huygenslyceum | Singapore | ||
| 142 | Indonesian School in The Netherlands | UNFPA | ||
| 143 | Int. Secondary School Eindhoven | INTERPOL | ||
| 144 | International School Maastricht | Indonesia | ||
| 145 | International School of Amsterdam | Albania | Nauru | |
| 146 | International School of The Hague | Congo | ||
| 147 | Lycée Français Vincent van Gogh | Ireland | UNCDF | |
| 148 | Maerlant Lyceum | Russian Federation | ||
| 149 | Murmellius Gymnasium Alkmaar | Serbia | ||
| 150 | Oostvaarders College | UNECA | ||
| 151 | Rijnlands Lyceum Oegstgeest | Cyprus | ||
| 152 | Rijnlands Lyceum Wassenaar | Brazil | Amnesty International | |
| 153 | Stedelijk Gymnasium Haarlem | Uganda | ||
| 154 | Stedelijk Gymnasium Leiden | Peru | UNESCO | |
| 155 | Bilkent University Preparatory School | Uruguay | ||
| 156 | HEV Schools Kemerköy | Azerbaijan | ||
| 157 | Istanbul Amerikan Robert Lisesi | Qatar | ||
| 158 | Koc Özel Lisesi | Portugal | ||
| 159 | Ösel Üsküdar Amerikan Lisesi | Haiti | ||
| 160 | Özel Izmir Amerikan Lisesi | United States of America | ||
| 161 | Tarsus American College | Netherlands | ||
| 162 | American School of Dubai | Afghanistan | UNICEF | |
| 163 | ACS Cobham International School | Barbados | ||
| 164 | Alconbury American High School | Luxembourg | ||
| 165 | American School in London | Germany | INSTRAW | |
| 166 | Charterhouse | Samoa | ||
| 167 | Haberdashers' Aske's School | Kazakhstan | ||
| 168 | Haileybury College | Mozambique | ||
| 169 | London Central High School | Bosnia-Herzegovina | ||
| 170 | Marymount Int. School UK | Tuvalu | ||
| 171 | Royal Russell School | Pakistan | ||
| 172 | Sevenoaks School | France | ||
| 173 | Southbank International School | Libya | ||
| 174 | TASIS-The Am. School in England | Slovakia | ||
| 175 | Woodside Park International School | Burundi | ||
| 176 | Atlanta International School | Saudi Arabia | Kyrgystan | |
| 177 | Delbarton school | Montenegro | ||
| 178 | Henrico County Public Schools | Switzerland | ||
| 179 | John Burroughs School | Austria | ||
| 180 | Lancaster Country Day School | Turkmenistan | WHO | |
| 181 | Park Tudor School | Mali | ||
| 182 | BOCES 2 | Sri Lanka | ||
| 183 | Colegio Internacional de Caracas | IAEA | ||
| 184 | Escuela Campo Alegre | Sao Tome & Principe | ||
| 185 | International School of Lusaka | Dominican Republic | ||
| 186 | Harare International School | WORLD BANK | ||
| 187 | American School of Valencia | Saint Kitts & Nevis | ||
| 188 | British School of Paris | Gambia | ||
| 189 | Heidelberg High School | Malawi | ||
| 190 | Civico Liceo Linguistico A. Manzoni | Latvia | ||
| 191 | AFS Monterrey | FYR of Macedonia | UNCTAD | |
| 193 | Ziridis New Generation | Lithuania | ||
| 194 | ACS International Hillingdon | Comoros |