Cika jumla mai zuwa:
Janairu 1966 juyin mulki, ya shiga Bankin Ci Gaban Masana'antu na Najeriya. A NIDB, sha'awarsa game da bankin saka hannun jari ya sa ya ba da shawara don kafa bankin kasuwanci wanda NIDB ke tallafawa. Lokacin da aka kafa ICON Securities, wani kamfanin banki na kasuwanci a 1973 a matsayin reshen NIDB, Balogun ya koma ICON Ltd a matsayin darektan ayyukan. Lokacin da burin Balogun na jagorantar ICON bai cika ba, sai ya bar kamfanin don kafa City Securities, kamfanin dillalan hannayen jari da gidan bayarwa. City Securities ta haɓaka alaƙa da kamfanonin tallace-tallace na man fetur na Mobil, Texaco da Total, suna kula da tayin hannun jari na kamfanonin. A shekarar 1979, ya nemi lasisin banki na kasuwanci don kafa Bankin Kasuwancin Birnin Farko. Balogun ya yi wahayi zuwa ga ayyukan kasuwanci na Siegmund Warburg, wanda ya kafa S.G. Warburg, ya ziyarci Warburg a London kafin ya kafa bankin kasuwancinsa. Sau da yawa yakan ba da labarin yadda ɗansa ya yi wahayi zuwa gare shi don yin tsalle a fara bankin. Lokacin da ayyukan bankin ya fara aiki a shekarar 1983, Balogun ya kafa al'adun kasuwanci a sabon bankin, na musamman a matsayin mai mallakar bankin da ke sarrafawa sabanin bankunan mallakar gwamnati a lokacin.