Seven Years, Seven Foundations: The Pillars Behind ISS Lisbon's Success

There is something remarkable about the number seven.Across cultures and throughout history, it has symbolised wisdom, growth, and good fortune. Pythagoras himself described seven as the “perfect number” — one that represents harmony, meaning and progress.As ISS Lisbon reaches the end of its seventh year, it feels fitting to reflect not only on how far we have come, but on the foundations that have shaped our journey. Over the past seven years, we have grown from a pioneering vision into one of Portugal’s leading international schools, built on seven key foundations that continue to guide our growth and ambition.1. Community: The Heart of Everything We DoEverything begins with community.ISS Lisbon has grown into a truly international family united by shared values, meaningful relationships