After the loss of super-rich individuals, London is attempting to launch an offensive in the family office sector.

As the UK adjusts tax policies prompting some super-rich to "leave" and attract attention, London's reputation as a global financial center has been damaged this year. However, a heavyweight figure in the City of London is seeking to change this narrative. City of London Mayor Alastair King is working to strengthen London's position as a fortress for family offices; family offices manage wealth for global billionaires. On Thursday, he will present London to about 100 representatives from these low-profile institutions at the Mayor's residence to attract private capital and promote growth.