In 2013, a team from the Middle States Association visited and re-accredited Cambridge School through 2021. Additionally, in 2014 and 2015, Cambridge received accreditation from the Middle States Association for additional grade levels, including grades 9 – 12, through 2021.

In 2021 the Middle States Association led an extensive re-accreditation of grades K-12 through a remote visit. At its conclusion the MSA Visiting team recommended full Accreditation without stipulations. One noted strength was stated by the MSA Chair, “the faculty not only provides an individualized learning plan for each student who has been diagnosed with a language-based learning difference..but they go above and beyond meeting their student’s needs.”