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Jim and Fitri Hay
Oil, Horseracing
Rank 2017
20
Worth
£305m
Rise/fall
-

Dubai resident Hay runs JMH Group, which turns over £480m annually through its construction, fashion and asset management operations. The Glaswegian entrepreneur, who started his career with BP, has extensive racing interests in Britain and owns luxury brands including Savile Row outfitter Bernard Weatherill. In 2011 Hay, 66, and his Indonesian-born wife Fitri, 46, bought Harold Macmillan's old Sussex home for £25m.