The below list of the top 20 Richest Nigerians is based on:

The value of their shares held in quoted companies, the size and market share of their companies, the number of companies they own and its assumed value, the market value of their company’s brand and the impact of their companies on the Nigerian economy.

Despite the harsh terrain and business challenges involved with starting a business in Nigeria; the successful entrepreneurs listed below held their ground and fought their way to the top.

In a country with a population of over 160 million inhabitants and millions of businesses; these 20 entrepreneurs diligently carved their names in the sands of time.

The list.
Alhaji Aliko Dangote – founder of Dangote Group, Richest man in Africa and Richest black man in the world
Mike Adenuga – Conoil, Equatorial Trust Bank, Globacom
Femi Otedola – ZENON Oil and Gas
Orji Uzor Kalu – Slok Group
Cosmos Maduka – Coscharis Group
Jimoh Ibrahim – Nicon Insurance, Global Flee
Jim Ovia – Zenith Bank, Visafone

See the rest of the list: http://olawaleoni..com/2013/09/meet-top-20-richest-nigerians.html