The richest company in Nigeria is Dangote Cement. It is also the biggest and most valuable company in the country. As per nigerianbulletin.com, Dangote Cement’s market value is 4,089.7 billion NGN. It was established in 1992 and it currently operates in ten countries in Africa. Its revenue is about $2.2B (N805B) and it presently has more than 24, 000 employees.