CAISL was founded as St. Columban´s in 1956 by Anthony A. McKenna with a vision to provide its students with a well-rounded, informed American education enriched by its Portuguese environment and European context. In the nearly 50 years since its founding, CAISL has continued to build on that vision.

At CAISL, keeping tuition more affordable while continuing to improve our facilities is a priority. Today CAISL funds its operating budget through tuition while the growth and development of its infrastructure is made possible through the generosity of corporations and individuals.

For information on how to give please see Ways to Give.

São João Campus: 1984 - 1998 (Primary School)	Monte Estoril Campus :1989 - 2000 (Early Childhood Center)
Carnaxide Campus: 1963 to 1998 (High School)	More Info
More Info Phase II of Campus Development Plan. Computer projections for new building