Entrepreneurs and business owners with interests in the UK retail and fashion sector made up just under a quarter of the top 25 in the 2015 Sunday Times Rich List.
The list, published on April 26, compiled the total wealth - accounting for land, property, assets and shares - of 1,000 individuals and families in Britain.
According to the newspaper, Selfridges owners Galen and George Weston have seen their wealth grow faster than that of anyone else in the UK.
The fortune of the Weston retail family, which also owns Primark, Fortnum and Mason and Irish department store Brown Thomas, has increased £3.7bn to £11bn in the past year, making them the third richest in the UK and placing them ahead of Sir Richard Branson, Lord Alan Sugar and even the Queen.
They were tailed in the top 25 by Blue Inc clothing co-investors the Reuben Brothers at number 5, whose property portfolio also includes the John Lewis headquarters in Victoria, London.
Shop Direct owners Sir David and Sir Frederick Barclay came in at number 13, with joint riches totalling £6.5bn.
Earl Cadogan, who owns much of London’s Sloane Street, home to the likes of Gucci and Jimmy Choo, followed shortly after at number 18.
Mike Ashley, owner of retailers Sports Direct and USC, tied at number 22 with Arcadia owner Sir Philip Green and his wife Lady Green. Both were estimated to have a wealth of £3.5bn each.
The combined fortune of this year’s list came in at more than £547bn, an increase of £15m on 2014.
Outside the top 25 sit Francois-Henri Pinault, founder of french luxury group Kering (38), former Harrods owner Mohamed al-Fayed (=75) and the entrepreneur behind River Island Bernard Lewis.
Hawes & Curtis and Ghost owner Touker Suleyman, who is to join the next series of BBC’s Dragons’ Den, is one of the new entrants in the list at number 637.
Fashion families made a further impact on the list with Stephen Rubin and his relations, whose Pentland sportswear company owns Speedo and Berghaus making joint 83rd, Matalan founder John Hargreaves and family appearing at joint 108 and the Ong family, which holds a £287m stake in Mulberry tying at 128.
Britain’s 25 top wealthiest people, according to the 2015 Sunday Times Rich List
1 Len Blavatnik £13.17 billion
2 Sri and Gopi Hinduja £13 billion
3 Galen and George Weston and family £11 billion
4 Alisher Usmanov £9.8 billion
5 David and Simon Reuben £9.7 billion
6 Ernesto and Kirsty Bertarelli £9.45 billion
7 Lakshmi Mittal and family £9.2 billion
8 Kirsten and Jorn Rausing £8.7 billion
9 The Duke of Westminster £8.56 billion
10 Roman Abramovich £7.29 billion
11 John Fredriksen and family £7.24 billion
12 Charlene de Carvalho-Heineken and Michel de Carvalho £7.145 billion
13 Sir David and Sir Frederick Barclay £6.5 billion
14 Hans Rausing and family £6.4 billion
15 Mohamed Bin Issa Al Jaber and family £5.935 billion
16 Carrie and Francois Perrodo and family £5.8 billion
17 Nathan Kirsh £5.06 billion
18 Earl Cadogan and family £4.8 billion
19 Nicky Oppenheimer and family £4.55 billion
20 Sir Richard Branson and family £4.1 billion
21 Bruno Schroder and family £3.76 billion
22= Mike Ashley £3.5 billion
22= Sir James Dyson and family £3.5 billion
22= Sir Philip and Lady Green £3.5 billion
25 Sir Henry Keswick and family £3.275 billion