Sagi, 45, has a penchant for British assets. In 2014 he bought Camden Market in north London for nearly £500m. The Israeli floated it and retains a £646m stake in the business, now called Market Tech. His fortune derived from the gaming software business Playtech, which he started in 1999 and floated in 2006. He has also floated online payments processor Safecharge and big-data company Crossrider. He has property in Tel Aviv, London and Berlin.