Nassef Sawiris owns 28.97 percent of the multinational construction group, or 33,825,323 shares.
Masimba Holdings is a well-established Zimbabwean group.
GoMetro was founded in 2012 as South Africa's first real-time public transportation information system.
Its revenue rose by 23 percent to $127.5 million.
The family controls a 12.8-percent stake in Medine Limited, worth almost $20 million.
The move comes weeks afterTanoe was replaced as CEO of Atlantique Finance.
Montanana's 11.98-percent stake in Datatec is valued at $63 million.
Adenuga's 74.4-percent stake in the company is worth $32.6 million.
The Espitalier-Noel family is one of the wealthiest families in Mauritius.
Aga Khan IV indirectly owns 44.7 percent of the company.
KCB Group operates as a holding company for subsidiaries across Africa.