The aim of this study is to examine the determinants of profitability in a public company, taking the case of REGIDESO. Through analysis of the financial profitability indicator, we identify and explain the factors influencing this profitability. The results show that financial resources are positively correlated with performance, although not significant at the 0.05 level. On the other hand, operating financing requirements have a negative impact on financial performance, while receivables management has no significant effect. In particular, rigorous management of operating costs is shown to be a decisive factor in improving financial profitability. This study underlines the importance of minimizing operating costs to optimize REGIDESO's performance.