Jan-Dirk Paarlberg

233= £175m Media and finance

Dutch-born Paarlberg, 47, started work as an investment banker with Salomon Bros in the City. At 32 he bought the near-bankrupt Mediamax outdoor advertising group based in Amsterdam and sold it 11 years later for £122m. Since then Paarlberg, who lives in London, has invested in property and become a leading venture capitalist in the Netherlands. Our friends at Quote 500, the Dutch rich list, value him at £175m. We agree.

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