CATS Academy Boston is an international boarding school based in Braintree, Boston. The institute offers an American co-educational college preparatory boarding and day program (grades 9-12) for a predominantly international cohort of students who are linguistically, culturally, and academically diverse. Focusing on the needs of each individual, CATS helps students realize their full potential and attain admission to the college choice that is right for them. Aided by a personalized learning plan, CATS provides a supportive learning community where all students receive the necessary guidance to achieve their goals.

CATS helps students to develop by nurturing strong English language skills along with creative and critical thinking skills, which they often have not experienced in their previous educational systems. The school's strong academic, social development, and extracurricular programs are delivered by highly talented and committed staff helps that further look after the needs of the whole student body.

CATS Academy Boston combines the experience and values of a traditional American boarding school with a new, state-of-the-art campus. The main building offers outstanding spaces to develop and nurture creative independent thinking. The campus covers more than 20 acres and features: 43 classrooms including 6 language labs, 6 wet and 3 dry science labs, 7 music rooms, 3 art studios, an experimental theatre space known as the ‘Black-Box', a large study area and student lounge, a business lab and a fashion lab.

The institute offers a number of clubs and electives that will challenge and develop students' academic abilities. This will give them the opportunity to work with students from other schools in national competitions, taking part in the Model United Nations or entering national competitions as part of the DECA or Math Club. CATS Boston has an extensive extracurricular and excursion program throughout the year. These activities give students the opportunity to keep up their passions from home, try new things, and never be bored.

CATS Academy Boston is part of CATS Colleges, which has been providing exceptional educational experiences that shape minds and create bright futures for international students around the world. In addition to CATS Academy Boston, there are CATS Colleges based in top academic cities in the UK (Cambridge, Canterbury and London) and two centers based in Shanghai.