James Dyson’s Family Office Names New CIO for $18 Billion Empire

British billionaire James Dyson’s family office promoted Jane Simpson to run its financial investments unit, making her one of the top female money managers for the world’s super-rich.

Simpson recently took over as Weybourne’s chief investment officer following the departure of Bjorn Thelander, 59, who previously held the role, according to people with knowledge of the matter, who asked not to be identified as the details are private.

Simpson, 54, formerly served as deputy CIO at Weybourne, which oversees holdings spanning hedge funds, venture capital and real estate.

A representative for Dyson — the UK’s richest person with ...