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Navin and Varsha Engineer
Pharmaceuticals
Rank 2017
107=
Worth
£1,200m
Rise/fall
£100m

Chemidex, the Surrey pharmaceuticals operation owned by Engineer, 66 later this month, and his wife Varsha, 62, is making healthy profits. The couple’s largest four companies made more than £20m combined last year, with the two biggest businesses holding £113.4m net assets. A former Boots pharmacist, Kenyan-born Engineer established a chemist chain that he sold in 1999 for about £12m, but rather than retire he put his money into building up a pharmaceuticals giant. Debt-free and with a string of patents, Chemidex is worth £1.1bn with pharma company ratings so high, to which we add £100m for other wealth.