Africa.com analyzed 1,538 companies listed on the 25 African stock exchanges. Of the 1,538 companies, Africa.com screened for those with revenue of $100 million or more, which yielded a list of 484 companies. This data was provided by Bloomberg. Africa.com then reviewed the public websites of the 484 companies to identify female chief executives. The team of Africa.com researchers examined the list of these women to determine those who held the title of chief executive officer, managing director, or president, and conducted a review to confirm that these executives had bottom-line, profit and loss responsibility for their companies. This group of women is identified as Group One on the List.