Michael Platt: $15.2 billion

James Ratcliffe: $11.8 billion

Christopher Hohn: $7.9 bn

Ian & Richard Livingstone: $7.7 billion

James Dyson: $7.5 billion

Nik Storonsky: $7.1 billion

Simon Reuben: $6.4 billion

David Ruben: $6.4 billion

Cliver Calder: $5.7 billion

Joe Lewis: $5.2 billion