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

Congratulations, Class of 2020!

The members of the Class of 2020 are the first students who will graduate from Alto International Schools’ high school program founded in 2016. They are also the first Alto students to receive the IB Diploma. Please join us in celebrating!

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.

Why We Play

Read on our blog, why Alto’s preschool and early elementary school classrooms are centered around play and how we prepare our youngest students for learning and working in today’s world.

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.

Studying Abroad: Soccer, Croissants, and French

Global citizenship is at the heart of Alto’s curriculum and we encourage students to explore the world. Read about the recent stay of one of our students in France.