Following closely is another Nigerian billionaire, Mike Adenuga, who is worth $7.3 billion (6.1 in 2021). Mike is the founder of Globacom, the second largest telecom company in Nigeria. He is also a shareholder in other companies, including Equitorial Trust Bank, and has interests in oil (Conoil).
2. Mike Adenuga
The 1962 Denver-born Robert Smith is a black billionaire with an estimated $6.7 billion (6 in 2021). After completing his education in two different fields, Chemical Engineering for his degree and Business Administration for his master's, he worked for several businesses. Robert later decided, like most rich entrepreneurs, to start his business.
Here's another black billionaire of Nigerian descent with a net worth of $6.9 billion (4.9 in 2021). Abdul is the founder of BAU, a Nigerian conglomerate whose interests have diversified since it began operations in 1988. They started with commodity trading, expanded to construction materials, and began constructing rolling mills. Other interests include real estate, infrastructure, and cement production.