The research looks at how board composition and financial performance of listed financial services businesses in Nigeria were affected by company size between 2013 and 2021. The sample size of forty-five (45) insurance firms in Nigeria was determined using a filtering procedure, with the population being all quoted insurance businesses in Nigeria. Further results based on the model indicate that firm size significantly moderates the relationship between board gender diversity and return on assets of quoted insurance companies in Nigeria while board size, board independence with the interaction of firm size has an insignificant statistical impact on return on assets of quoted insurance companies in Nigeria. In order to maximize the financial performance of the insurance businesses in Nigeria, the research advises, among other things, that the insurance companies should appoint a limited number of highly qualified and informed individuals to their boards.

Firm size, board structure financial performance