David Reuben

Brothers David and Simon Reuben built a fortune in real estate and technology.

In December 2016, they sold 49% of their data center business, GlobalSwitch, to a consortium of Chinese investors for nearly $3 billion.

The brothers were born in Mumbai and raised in the U.K., where David started off trading metals and Simon imported carpets and bought real estate.

Their firm Transworld, a metals trader, invested in Russia and Kazakhstan in the 1990s and was active in trading aluminum.