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  • Distinctly Different

    We offer a distinctly different option from other private schools in Boston, providing your child with the opportunity for a high level of academic success.

    Toddler Child plays

  • Globally Recognized Curricula

    Our combination of curricula is regarded as one of the finest in the world by leading colleges and universities.

    Year 10 in Spanish

  • Nurturing Risk In A Safe Environment

    We celebrate success and encourage risk taking, all within a safe and supportive environment where well-being comes first.

    Swiss Alps Expedition

  • Inspiring Every Child

    Our staff are dedicated to knowing every child well and adapting their approach to ensure all are successful.

    Year 3 Teacher

  • Join Our Community

    We are the school of choice for discerning parents who seek a genuine 21st century education for their children. Join us.

    BISB Students Across all Divisions

  • The BISB Bulldog Sports Teams

    Go Bulldogs!

    Soccer Teams

  • Connect with Us

    Stay up to date with our vibrant community!

    BISB Boston

  • Inspiring Innovation

    We're bringing the national computer programming, Hour of Code, to our school.

    Coding lessons at the British International School of Boston

William Mitchell

William Mitchell

Head of History

As a passionate historian, I have enjoyed seeing history and geopolitics in action in a variety of professional environments. Before training as a teacher at the University of Bristol, I acted as a visitor manager for a 15th century castle in the Cotswolds. In addition, my training as a Royal Naval Officer gave me insight into the role and impact of the military. I enjoy working as part of an international team.

I have been teaching history to 11 to 18 year olds for 10 years in the UK and United States. I decided to join the British International School of Boston due to the strong focus on history in the International Baccalaureate Diploma Programme. I'm pleased to say that so far 100 percent of students have elected to study history when the choice was given, with many going on to select it as a topic for Higher Level study during the IBDP.

I enjoy travel and the great outdoors and am always pleased to share these interests with students. New England has so much to offer the outdoorsman. While at BISB I have led expeditions to the White Mountains of New Hampshire, trips to Cape Cod and the islands and beyond. 

At the moment I’m also enjoying renovating an 1850s homestead farmhouse in rural Maine.


The international and diverse nature of our student body brings unique perspectives to class discussions. I enjoy the rigorous academic curriculum, balanced with the great opportunities to enjoy outdoor pursuits with the students.