The reasons why studying at SEK makes all the difference.

Find out why here

Admissions open for the 2024/25 academic year

More Information

SEK International School El Castillo among the top schools in Spain according to different rankings

More information

Academic exchanges abroad

Discover a unique experience: Language, culture and living together.

Registration open

Duke of Edinburgh’s International Award

SEK-El Castillo is part of this prestigious programme in 180 countries.

More information

English Language School

Admissions Procedure

All information about of admissions procedure to request a place at SEK-El Castillo for different programmes.

English Language School

International Boarding

Students from 15 nationalities live together in an international atmosphere, with academic enrichment, high-performance athlete and academic excellence programmes.

English Language School

About
SEK-El Castillo

Learn about our international IB ® World boarding school which is also NEASC accredited to offer the American high school diploma track.

English Language School

IB® Programmes

Pioneers in teaching the 3 International Baccalaureate programmes, integrated in the school curriculum. From 3 to 18 years of age.

SEK International School El Castillo: private international school in Madrid

SEK-El Castillo is part of SEK Education Group, with over 130 years’ experience and history. With 11 schools around the world (Spain, France, Ireland, Qatar, Saudi Arabia, and SEK International School Online) and its over 7,000 students representing over 80 nationalities.

The school covers all educational stages, for students from 4 months to 18 years of age. As a private and international school, we offer the International Baccalaureate programme continuum.

EARLY CHILDHOOD- PRIMARY EDUCATION – SECONDARY EDUCATION – BACCALAUREATE – DIPLOMA PROGRAMME (DP)

Discover SEK-El Castillo:

With a campus spanning 40,000 m²
Boarding houses for boys and girls.
Students from over 40 nationalities.
Nursery school from 4 months.
Continuum of International Baccalaureate Programmes (IB).
SEK International Sports Academy: High performance sports.
Duke of Edinburgh’s International Award.
Accredited by the New England Association of Schools and Colleges (NEASC).
Certified member of the Council of International Schools (CIS).
Full English-language immersion. Bilingual Spanish/English education

MAKE AN ENQUIRY

Quality assurance

Our main priority at SEK International Schools is to provide a quality education to our students through the different educational experiences we offer them. This entails a constant review of our learning and teaching processes, our curricula and our assessment processes.

In order to comply with these high quality standards we regularly manage and review our quality assurance providers and submit our schools to external evaluations in order to ensure compliance with the standards required by the most demanding international and national educational authorities.