| COUNTRY | SCHOOL |
| Afghanistan | North London Collegiate School |
| Albania (SC) | Terenure College |
| Algeria | St Joseph’s, Athens |
| Australia | Hurstpierpoint College |
| Belarus | ACS Egham |
| Brazil (SC) | Ste Victoire Int’l School |
| Cambodia | Lycée François 1ere |
| Canada | Hurstpierpoint College |
| Chile | Boxhill School |
| China (SC) | ACS Egham |
| Colombia | Bancroft’s School |
| Comoros | Bancroft’s School |
| Congo Dep Rep | Shrewsbury |
| Costa Rica | ACS Egham |
| Côte d’Ivoire | Royal Russell School |
| Cuba | Harris Academy, Bermondsey |
| Cyprus | St Joseph’s, Athens |
| Ecuador | Newpark Comprehensive |
| Egypt | Institute of Education, Dublin |
| Equatorial Guinea | North London Collegiate School |
| Estonia | George Cosbuc High School |
| Ethiopia | Newpark Comprehensive |
| Fiji | Newpark Comprehensive |
| Finland | Cours Saint Charles |
| France (SC) | Frankfurt Int’l School |
| Gabon (SC) | Bishop Thomas Grant |
| Germany | Colegio Ayalde |
| Ghana (SC) | St Gerard’s School |
| Greece | Royal Russell School |
| Haiti | Harris Academy, Bermondsey |
| Hungary | Frankfurt Int’l School |
| Iceland | Wesley College, Dublin |
| India (SC) | ÅS Videregaende Skole |
| Indonesia | Ste Victoire Int’l School |
| Iran | Royal Russell School |
| Iraq | Wesley College, Dublin |
| Ireland (SC) | Cheadle Hulme |
| Israel | Cheadle Hulme |
| Italy | Colegio Ayalde |
| Japan | Colegio Ayalde |
| Kenya (SC) | St Ives School |
| Korea (Dem Rep) – North | Cours Saint Charles |
| Korea (Rep) – South | Hurstpierpoint College |
| Kuwait | Ste Victoire Int’l School |
| Kyrgyzstan | Bancroft’s School |
| Latvia | Rathdown |
| Lebanon | Holy Child School, Killiney |
| Libya | Rathdown |
| Lithuania | Lingfield College |
| Malaysia | Royal Russell School |
| Malta | St Joseph’s, Athens |
| Mexico (SC) | Rathdown |
| Morocco | North London Collegiate School |
| Myanmar | Reigate Grammar School |
| Nepal | Sutton Park, Dublin |
| Netherlands | Reigate Grammar School |
| New Zealand | St Joseph’s, Athens |
| Norway (SC) | Gordon’s School |
| Oman | Kings Monkton |
| Pakistan | Frankfurt Int’l School |
| Poland | Shrewsbury |
| Portugal | Gordon’s School |
| Qatar | Gordon’s School |
| Russian Federation (SC) | Hurstpierpoint College |
| Rwanda | Bancroft’s School |
| Saudi Arabia | Hurstpierpoint College |
| Senegal | Rathdown |
| Serbia | ÅS Videregaende Skole |
| Seychelles | St Gerard’s School |
| Singapore | Hurstpierpoint College |
| Slovakia | St Ives School |
| Somalia | Frankfurt Int’l School |
| South Africa | Cheadle Hulme |
| South Sudan | Terenure College |
| Spain | St Joseph’s, Athens |
| Sri Lanka | Lingfield College |
| St Lucia | Santa Margarita Catholic HS |
| Sudan | Santa Margarita Catholic HS |
| Syria | St Gerard’s School |
| Thailand | Newpark Comprehensive |
| Trinidad & Tobago | St Andrew’s, Dublin |
| Tunisia | St Andrew’s, Dublin |
| Türkiye | St Andrew’s, Dublin |
| Uganda | St Andrew’s, Dublin |
| Ukraine | St Andrew’s, Dublin |
| United Arab Emirates (SC) | Blackrock College |
| United Kingdom (SC) | St Andrew’s, Dublin |
| United States of America (SC) | St Joseph’s, Athens |
| Viet Nam | Kings Monkton |
| Zimbabwe | Colegio Ayalde |
