There are many management accounting techniques used in planning and control functions to achieve organizational objectives and budgeting and budgetary control play a key role in this regard. The main objective of this study is to assess the effects of budgetary control on the financial performance of quoted brewery companies in Nigeria. The research design that was used in this study was ex-post factor research design. The data used covered a period of ten years, from 2007-2016. The variables tested in the study are cost of sales control, operating cost control, inventory cost control and return on Assets. The study has a population of thirteen (13) brewery companies quoted on Nigerian Stock Exchange (NSE) as at June, 2017. A sample of only four (4) quoted firms from the sectors was selected for the purpose of analysis. The findings of this analysis reveal that cost of sales control, operating cost control and inventory conversion period have statistically significant effect on the financial performance of brewery firms in Nigeria. The study therefore concludes that budgetary control has a strong effect on the financial performance of quoted brewery firms in Nigeria.