Where Future
Global
Leaders Begin
Cambridge Preschool, Primary, Secondary IGCSE & A-Levels at Our Three Premium Campuses in Lisbon, Sintra & Estoril
Cambridge Pathway
Global academic credentials from early years through A Levels.
67+ Nationalities
Truly international community.
3 Campuses
Sintra • Estoril • Lisbon
A Legacy of Excellence,
A Vision for the Future
Discover a transformative educational journey that prepares students for success in an ever-evolving global landscape.
Academic Excellence
Cambridge International Curriculum from Preschool through to A-Levels, ensuring every student achieves their full academic potential.
- Cambridge certified since 2009
- Full pathway: Preschool to A-Levels
- 97% university placement
Global Community
A vibrant multicultural environment with students from 67+ nationalities, fostering international mindedness and global citizenship.
- 67+ nationalities
- Erasmus+ programme
- Global partnerships
Three Premium Campuses
State-of-the-art facilities across Lisbon, Sintra, and Estoril, each offering unique advantages and world-class learning environments.
- Modern facilities
- Prime Boarding available
- Elite sports programmes
Prime Boarding Modern, Supportive, Premium
Experience a home away from home in our state-of-the-art boarding facilities, where students thrive in a safe, multicultural environment with 24/7 support.
24/7 Support
Pastoral care & mentoringIntl Community
Students from 30+ countries
Your Path to Global Success
From early years to university entrance, we offer comprehensive educational pathways tailored to each student's unique potential.
Cambridge International Pathways
Rigorous, globally recognized academic programmes that prepare students for top universities worldwide. From early years through A Levels, Cambridge qualifications open doors to international higher education.
Primary
Cambridge Primary
Mastering core subjects through inquiry-based learning, developing critical thinking and problem-solving skills.
Lower Secondary
Cambridge Lower Secondary
Broadening horizons with comprehensive subject coverage, checkpoint exams, and interdisciplinary projects.
Upper Secondary
Cambridge IGCSE
Cambridge IGCSE for academic depth and excellence.
Advanced Level
Cambridge A Levels
Prepare for top universities worldwide with Cambridge A Levels for academic specialization and excellence.
Milestones of Excellence
The Beginning
Prime School founded in Sintra, establishing a new standard for international education in Portugal.
Virtual TourOfficial Recognition
Cambridge International accreditation and Portuguese Ministry of Education recognition achieved.
Expansion to Estoril
Second campus opened in Estoril, expanding our reach and impact in the region.
Virtual TourLisbon Campus Opens
State-of-the-art campus in Alvalade, Lisbon, bringing world-class education to the capital.
Virtual TourISO 9001 Certification
First private international school in Portugal to achieve ISO 9001:2015 quality certification.
View CertificateOur Campuses
Choose the campus nearest to you — same great programme at all locations.
What Our Community Says
"Prime School has exceeded our expectations. The personalized attention, world-class facilities, and diverse community have helped our daughter flourish academically and personally."
Maria Rodriguez
Parent, Grade 10 Student"The Cambridge A Level programme at Prime School prepared me perfectly for university. I'm now studying at Oxford, and I credit my success to the excellent teaching and support I received."
James Chen
Alumni, Class of 2023"Teaching at Prime School is incredibly rewarding. The resources, professional development opportunities, and collaborative environment make it the ideal place to grow as an educator."
Sarah Thompson
Cambridge CoordinatorBegin Your Journey to Excellence
Join a community where every student is empowered to achieve their full potential. Limited spaces available for the 2026-2027 academic year.