6. Samuel Tafesse
He partnered the widow of Meles Zenawi, in several businesses. He started with his business in construction. Both of them partnered the business and made a profit of millions in the industry. They have also worked together on other businesses as well. But new chances of the relationships getting sour with her have made a deep impact on his construction business. Even with that he has a net worth of $1.6 billion and a working business led by him.