Workday's Dave Duffield, 85, builds a third $1 billion company
Billionaires Africa | 23.09.2026 01:29
David Duffield, the 85-year-old American software entrepreneur behind PeopleSoft and Workday, has produced a third billion-dollar company. Ridgeline, which builds software for investment-management firms, has raised $250 million at a $1.4 billion valuation.