net worths, at the bottom of the article.1. Sir Leonard Blavatnik - Investment, music and media - £23bn, up £7.219bn2.
David and Simon Reuben - Property and internet - £21.465bn, up £5.465bn3. Sri and Gopi Hinduja and family - Industry and finance - £17bn, up £1bn4. Sir James Dyson and family - Household goods and technology - £16.3bn, up £100m5. Lakshmi Mittal and family - Steel - £14.68bn, up £7.899bn6. Alisher Usmanov - Mining and investment - £13.406bn, up £1.726bn7. Kirsten and Jorn Rausing - Inheritance and investment - £13bn, up £900m8. Roman Abramovich - Oil and industry - £12.101bn, up £1.945bn9. Charlene de Carvalho-Heineken and Michel de Carvalho - Inheritance, brewing and banking - £12.013bn, up £1.713bn10. Guy, George, Alannah.