8) The Lord Drayson – estimated £75 Million

Drayson served as a Minister of State between 2005 and 2010 under the New Labour governments of Tony Blair and Gordon Brown. He had been a substantial donor to the party before receiving his peerage and place in government, donating £1 million between 2002 and 2005.

Lord Drayson made his money through his pharmaceutical company, PowderJect Pharmaceuticals, which he sold in 2003 for £100 million. Since losing his ministerial role at the 2010 election Drayson has moved into green motor-racing technology through his company Drayson Green Technologies.

7) Lord Deighton – £100 Million

Alongside Lord Coe, Deighton was integral in London’s bid for the 2012 Olympics. Before this he had spent the majority of his career working for Goldman Sachs in both the United Kingdom and the United States.

Deighton received his peerage in November 2012; this allowed him to serve in David Cameron’s coalition government as Commercial Secretary to the Treasury, a role he still holds today. The Sunday Times 2014 rich list put his wealth at £100m.