Diederik brings over 25 years of experience supporting families through the private school placement process. He began his career in the 1970s as a teacher at Rumsey Hall School and later served in admissions leadership roles at Miss Hall’s School and Darrow School.
He is widely respected for his expertise in matching students with the right day and boarding schools, including those seeking special‑needs or alternative settings. A pioneer in therapeutic and residential treatment placements, Diederik is known for guiding families through urgent and sensitive situations with calm, compassion, and deep knowledge of available options.
Diederik remains closely involved after each placement, maintaining ongoing contact with families and schools to monitor progress and support smooth transitions. His commitment to follow‑through has resulted in long‑term relationships with families, counselors, and programs around the world.
Having lived and studied abroad, he also specializes in helping international families navigate U.S. school options. He is a frequent presenter at professional conferences and an active member of NATSAP, SSATB, NACAC, and other organizations. A graduate of Lafayette College, Diederik is recognized for his thoughtful, student‑centered approach to school placement.