This study explores the application of data visualization in three critical business domains: sales forecasting, marketing analytics, and financial reporting. Through a qualitative approach, the study investigates how visualizing data in these areas enhances decision-making, improves operational efficiency, and drives business growth. Thematic analysis of interviews with industry professionals reveals key insights into the benefits and challenges of utilizing data visualization tools in sales, marketing, and finance. The findings contribute to a deeper understanding of the role of data visualization in optimizing business insights across diverse functional areas.