| American School in London | Uruguay (SC), Pakistan, Argentina |
| ÅS Videregaende Skole | Saudi Arabia, Israel |
| Beaconsfield High School | Germany, Haiti |
| Benenden | Ukraine (SC), Afghanistan |
| Bishop Thomas Grant | Yemen |
| Charterhouse | Bolivia (SC), Iran, Rwanda |
| Cheadle Hulme | Russia (SC) |
| Colegio Ayalde | Belgium, Netherlands, Kenya |
| Cours St Charles | Denmark, Iceland |
| Exeter College | Australia (icj) |
| FMV Erenkoy Isik High School | Brazil |
| Frankfurt International School | Venezuela, Switzerland, Portugal, Ireland, Colombia |
| George Cosbuc College | Lithuania |
| Gordon’s School | Ethiopia (SC) |
| Haberdashers’ Boys | China (SC), Poland, Philippines, Uzbekistan |
| High School | Norway, Spain, Togo |
| Hitachi First High School | Japan (SC) |
| Izmir Ozel Turk Koleji | Croatia, Morocco |
| Jerusalem School Bethlehem | Canada, Peru |
| Munabe | Bosnia, Singapore |
| Newpark Comprehensive School | D.R. Congo |
| Queen’s Gate School | Senegal (SC), Mexico |
| Reigate Grammar | Sweden (SC) |
| Royal Russell | USA (SC), Nauru (icj), North Korea, South Africa |
| Santa Margarita | Italy (SC), Sri Lanka |
| Shrewsbury | Egypt (SC), Hungary |
| St Andrew’s Dublin | UK (SC), Tanzania, Syria, Bangladesh, Ghana, Fiji |
| St Gerard’s School | Libya |
| St Joseph’s Greek French School | Algeria, Estonia, Thailand, Romania, Malta |
| Terenure College | France (SC), Myanmar, Slovenia, Angola |
| Tiffin Girls’ School | South Korea, Cuba |
| West Exe School | Cameroon |
| Wesley College, Dublin | India, Zimbabwe |
| Wycombe Abbey | ICJ |
