His familiarity with corporate law led him to be a significant shareholder in various Nigerian companies like West African Batteries, Metal Box Toyo, Union Securities, 3M Nigeria, ABB Nigeria, Roche Nigeria and Chemical and Allied Products Ltd.
Chief Ogunbanjo established a reputation for promoting and nurturing industrial ventures. He was an early advocate of domiciliary accounts in Nigeria, which later came to existence through the promulgation of the Foreign Currency Decree 18 of 1985. In the late 1960s, he was among the group of businessmen who supported local equity participation in foreign firms operating in Nigeria.
As a business leader in Nigeria, he was an articulate spokesman for the organised private sector and has over the years displayed good judgement in his various comments on the direction of the Nigerian economy.
