| International Community School, Branch 1, City Centre150111 | Not applicable | — | — | — |
| International Community Schools - Branch 4151396 | Not applicable | — | — | — |
| International Rural School, Barcelona149177 | Not applicable | — | — | — |
| International School of Bucharest150141 | Not applicable | — | — | — |
| International School of Creative Science147974 | Not applicable | — | — | — |
| International School of Morocco142573 | Not applicable | — | — | — |
| International School of Oradea147587 | Not applicable | — | — | — |
| International School Olomouc140571 | Not applicable | — | — | — |
| James Hope College147042 | Not applicable | — | — | — |
| Jeanne D'Arc International School149394 | Not applicable | — | — | — |
| Jebel Ali School150981 | Not applicable | — | — | — |
| Jeddah Prep and Grammar School149774 | Not applicable | — | — | — |
| Jumeirah College150553 | Not applicable | — | — | — |
| Jumeirah English Speaking School132564 | Not applicable | — | — | — |
| Jumeirah English Speaking School, Arabian Ranches142830 | Not applicable | — | — | — |
| Kampala Community International School149856 | Not applicable | — | — | — |
| Kathmandu International Study Centre149780 | Not applicable | — | — | — |
| Kellett School, the British International School in Hong Kong149886 | Not applicable | — | — | — |
| Kent College, Dubai149788 | Not applicable | — | — | — |
| Kenton College Preparatory School146758 | Not applicable | — | — | — |
| King Williams College142476 | Not applicable | — | — | — |
| King's College International School Bangkok151148 | Not applicable | — | — | — |
| King's College School, la Moraleja141432 | Not applicable | — | — | — |
| King's College, the British School of Alicante133954 | Not applicable | — | — | — |
| King's College, the British School of Madrid133016 | Not applicable | — | — | — |
| King's Infant School Madrid, Chamartin141433 | Not applicable | — | — | — |
| King's Oak British International School149812 | Not applicable | — | — | — |
| Kings College School Panama143024 | Not applicable | — | — | — |
| Kings College, the British School of Latvia146745 | Not applicable | — | — | — |
| Kings College, the British School of Murcia142180 | Not applicable | — | — | — |
| Kings Interhigh151867 | All-through | — | — | — |
| Kings' School Al Barsha149789 | Not applicable | — | — | — |
| Kings' School Dubai149844 | Not applicable | — | — | — |
| Kings' School Nad Al Sheba149790 | Not applicable | — | — | — |
| Knowledge Gate International School Muscat Oman150270 | Not applicable | — | — | — |
| Kuwait English School143043 | Not applicable | — | — | — |
| Kuwait International English School150056 | Not applicable | — | — | — |
| Kuwait National English School141434 | Not applicable | — | — | — |
| Leonardo Da Vinci Academy149428 | Not applicable | — | — | — |
| Liceul Teoretic Scoala Mea International152210 | Not applicable | — | — | — |
| London Academy Rabat149393 | Not applicable | — | — | — |
| London Academy, Casablanca147339 | Not applicable | — | — | — |
| Maadi British International School132603 | Not applicable | — | — | — |
| Marlborough College Malaysia151394 | Not applicable | — | — | — |
| Mateas Foundation-Cambridge School of Bucharest146829 | Not applicable | — | — | — |
| Mayfair International Academy147459 | Not applicable | — | — | — |
| Meridian International School146355 | Not applicable | — | — | — |
| Minerva Virtual Academy150780 | Secondary | — | — | — |
| Modern English School Cairo141507 | Not applicable | — | — | — |
| Montessori British School Murcia149176 | Not applicable | — | — | — |