The only Bay Area school offering the IB program from preschool through high school.

The International Baccalaureate (IB) opens the door to a world of possibilities

Now accepting applications for preschool to high school for fall 2020-2021

Alto offers a German language immersion program in preschool and elementary school

Alto International School believes in the importance of a globally-minded, progressive education.

Alto is an International Baccalaureate World School in the heart of Silicon Valley and is the only school in the Bay Area offering the International Baccalaureate from preschool through high school. Every day we create a stimulating learning environment for our students who come from all over the world. Students of all ages are exposed to an international mindset and an inquiry-based learning approach.

Our internationally focused middle and high school offers students a unique preparatory, multilingual education providing them with the necessary skills for university and life beyond. Students are taught in a multilingual environment, graduating with literacy skills in at least two languages. For younger students we offer a German-immersion focused preschool and elementary program, educating engaged, independent, and balanced learners.

At Alto, we believe that the world needs young people eager to take on today’s and tomorrow’s challenges. Alto International School equips students with the skills and confidence to contribute to making our world a better place.

English Track | German Track | The IB Advantage


From the Alto Blog:

Alto News

Alto and ISTP Partner for International High School

Alto and ISTP announce their partnership for an IB high school, which will be known as Silicon Valley International High School.

Meet Us Online

While our campus is physically closed and our students and teachers are working online, we are offering online meetings to prospective families instead of school tours.

Advantages of the IB

New research shows that International Baccalaureate Diploma Programme students are outperforming high school students nationally in university enrollment, persistence, and graduation.

A Lesson on Climate Change

Alto students are making their voices heard about the need to address climate change. The topic is also explored in the classroom, for example, in an integrated science and IAS unit for middle schoolers.

Alto Joins Round Square

Alto is now a member of Round Square, an internationally diverse network of 200 like-minded schools in 50 countries on six continents that connect and collaborate to offer world-class programs and experiences.

Service Trip to Costa Rica

Alto middle and high school students will be traveling to Costa Rica in February 2020 to support local coffee farmers. Read about last year’s trip on the Alto blog .