King William's College and The Buchan School, a privately owned institution headquartered in the UK, founded in 1833, employs approximately 100 individuals, and reported $15.6M in revenue as of 2024. The institution functions as a co-educational private school, catering to pupils aged 3 to 18 near Castletown on the Isle of Man. It is a member of the International Baccalaureate and Headmasters' and Headmistresses' Conference organisations. The school operates at two sites, encompassing a main senior school campus on the shore of Castletown Bay and a prep school, The Buchan School, located in the Westhill part of Castletown. It serves roughly five hundred pupils.
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