The Raspberry Pi Foundation is a charity registered in England and Wales. "The object of the charity is to further the advancement of education of adults and children, particularly in the field of Computers, Computer Science and related subjects." They have a trading subsidiary.
Anyone sufficiently cynical (not me) can read the accounts of both entities:
> This was another year of exceptional growth with Revenues at £25.5m (2016 - 16.3m) and Operating Profit of £9.7m (2016 - £8.9m)