Bob Collymore: Business leader and Safaricom CEO Bob Collymore Robert (Bob) Collymore (1958–2019) was a Guyanese-born British businessman best known as CEO of Safaricom. He led the company through growth in mobile services and digital finance…
Charles Koch American businessman, CEO of Koch Industries, philanthropist and advocate of free‑market ideas. Known for leadership at Koch Industries, the Charles Koch Foundation, and political…