Lisbon city 16
- Astoria International School
- The British School of Lisbon
- Butterflies School
- Cesário Verde Int'l School (SEK)
- Colégio Planalto
- Deutsche Schule Lissabon
- L'École Trilingue
- The Lisboan International School
- Lycée Français Charles Lepierre
- PaRK International School — Alfragide
- PaRK International School — Praça de Espanha
- PaRK International School — Restelo
- Prime School — Lisbon
- Redbridge School Lisbon
- TISA — Theodore Int'l Startup Academy
- United Lisbon International School
Cascais & Estoril 12
- Aprendizes
- Greene's College Oxford — Estoril
- International Christian School of Cascais
- IPS Cascais
- Kairos Montessori
- King's College School Lisbon
- Lisbon Montessori School
- Prime School — Estoril
- Santo António International School (SAIS)
- St Dominic's International School
- St James' Primary School Cascais
- St Julian's School
Oeiras 4
Sintra 4
Greater Lisbon & Setúbal 2
Porto & the North 7
Algarve 13
- Algarve International School (AIS)
- Aljezur International School
- Bright International School Algarve
- Colégio Bernardette Romeira
- Colégio Santiago Internacional
- Deutsche Schule Algarve
- Eden Montessori International School
- Montalvo International School
- Nederlands Onderwijs Algarve
- Nobel Int'l School Algarve — Almancil
- Nobel Int'l School Algarve — Lagoa
- Vale Verde International School
- Vilamoura International School (CIV)