https://www.telegraph.co.uk/business/2021/03/13/raspberry-pi-maker-mulls-listing-tap-esg-investors/
"Raspberry Pi maker mulls £300m London listing
The charitable foundation is close to appointing bankers ahead of a potential float that could value it at more than £300m"
"Raspberry Pi was founded in 2009 by Dr Eben Upton, who created a single-board computer that has been used to champion programming in schools."
Fact is, long before this, E Upton had resigned from Raspberry Pi, the charitable foundation, https://find-and-update.company-information.service.gov.uk/officers/2F4URAJF0N5OYhBczDPkU9zsApU/appointments and formed a new company, then confusingly changing its name to Raspberry Pi Ltd.
The company going public is E Upton's one, not the charitable original.