Aksa Mahmud, 71

Bosowa Corporation

Cement, infrastructure, trading, energy

$1.5 billion (2015)

$1.55 billion (2016)

A father of five with 12 grandchildren, Aksa Mahmud continues to oversee his growing business empire despite having handed day-to-day operations over to his children.

Already a major national player in infrastructure, manufacturing, finance, property and automotive spare parts, the group now has its sights set on becoming a global player under his son Sadikin, who took over as CEO last year. Brother- in-law Jusuf Kalla is Indonesia’s vice president.