A warm welcome to Alto International School, Silicon Valley’s only International Baccalaureate World School, where students from all over the world learn and grow daily in an international environment.

Founded in 1988 as the German-American International School, Alto International School has blossomed in program and number over the last thirty years to become the leading independent IB World School in Silicon Valley authorized for the Primary Years, Middle Years and Diploma Programs. 

Alto proudly provides a balanced and progressive education in a supportive, respectful environment while maintaining high expectations for all. We promote excellence in learning and individual student growth by a  personal approach made possible by our low teacher-student ratio and small class sizes. Alto’s rigorous academic program is enhanced by a variety of extracurricular offerings in sports, arts, clubs, trips, and community service opportunities.

This rising generation will need an exceptional academic foundation and intellectual creativity to take on positions of leadership and address the many challenges facing our world. Alto is responding by fostering a love of learning in its students who think critically, solve problems creatively, and enthusiastically accept the challenges of global citizenship.

As you view our website, you will gain a glimpse of the amazing Alto experience. Please stop by at Alto for a tour and in-depth conversation. I look forward to welcoming you to Alto.

We look forward to welcoming you to our school.

Head of School, Alto International School

About Drew Alexander

Drew Alexander is an experienced international educator with a passion for teaching, fostering global citizenship, and encouraging students to become active members of their local and global community. Click here to learn more.