Customers are important stakeholders in the financial industry, and therefore management must place a high priority on their satisfaction. In this paper, we investigated the impact of marketing communication mix on customer satisfaction being mediated by service quality within the financial industry. Data was drawn from marketing and sales managers of financial institutions, non-financial institutions, and microfinance companies. A sample of 372 marketing and sales managers participated in this study from financial, non-financial, and microfinance institutions across the three business regions in Ghana. The study deployed the quantitative approach to achieve the objective set. Partial Least Square-Structural Equational Modeling version 3.3 was adopted in this study to analyze the data and its processing. Out of the eleven hypotheses formulated, seven of them were significant, while four were insignificant. According to the findings, firms with greater levels of marketing communication mix should employ this performance metric to attract and achieve high-quality customer satisfaction because customer satisfaction is critical to a company's success. To management, it set a ground for them as superintendents of businesses to tailor-make their products in line with the customers’ preferences and satisfaction. The limitations and future research directions are equally presented in the paper.