Top 10 richest commercial banks In Nigeria with their total assets – #1 was only founded 27 years ago

6) Ecobank Nigeria (N1.32 trillion)

Established in 1986, Ecobank is a commercial bank. It is a subsidiary of Ecobank Transnational Inc., a leading pan­African banking group with more than 1,150 branches all over Africa. As of December 2011, Ecobank Nigeria controlled total assets valued over N1.32 trillion (US$8.1 billion), making it one of the five largest banks in Nigeria.

5) Diamond Bank (N1.519 trillion)

This full­service Nigerian bank is one of the 25 licensed commercial banks in Nigeria. It is a universal bank, with assets of around N1.519 trillion ($9.4 billion) as of December 31, 2013.
Diamond Bank offers a full range of financial products and services to retail and corporate customers.