In recent times, several manufacturing companies in Nigeria have witnessed unexpectedly high operating
costs due to the ongoing economic reforms of the present federal administration. This cross-sectional study therefore
investigated the combined effect of cost control techniques employed by Nigerian manufacturing firms on
organisational performance in terms of market share. A survey of 50 accounting personnel from five sampled listed
manufacturing sectors using Google Forms as a data instrument was conducted over seven months (January to July
2024). The study employs the Principal Component Regression (PCR) technique for model estimation at three
significance levels (1%, 5% and 10%). The study using a parsimonious Akaike Information Criterion (AIC) based
model shows that the increase in cost control techniques and strategies of manufacturing companies in Nigeria
contributed negatively and significantly to a reduction in their market shares for the period under review. The study
asserts that cost control techniques of manufacturing companies in Nigeria have significant predictive power to explain
changes in their market share. The study, therefore, recommends the need for a complete review and overhaul of cost
control techniques and strategies of manufacturing companies in Nigeria in line with current economic realities in the
country.