Research Problem: Charitable organizations in Saudi Arabia are using digital marketing to attract donations, with brand marketing being a key strategy. However, the exact impact of brand marketing investment on digital fundraising performance is unclear. A scientific study is needed to define this relationship and to understand how a strong brand identity can build donor trust and motivate giving through digital channels. This research aims to provide clarity and guide the strategic efforts of these non-profit organizations. Research Objectives: • Define key concepts: like brand marketing investment, digital fundraising performance, and brand equity for nonprofit entities. • Analyze the relationship: between brand marketing investment and digital marketing performance in fundraising. • Assess the impact: of brand investment on the digital fundraising performance of Saudi nonprofit organizations, considering relevant factors and challenges. • Provide strategic recommendations: based on the analysis, offering actionable advice for Saudi nonprofits to enhance brand strategies for greater fundraising impact. Research Methodology: The study surveyed leaders in 24 Saudi charities to analyze the link between brand marketing investment and its impact on digital fundraising performance through targeted questionnaires. Results: The study was able to confirm the research hypothesis, which posits a positive correlation between investment in brand marketing and the marketing performance of fundraising in charitable organizations. It also became evident that the challenges faced by organizations in investing in brand marketing are largely similar and closely aligned, regardless of whether the organizations are high-performing or lower-performing. Conclusions and Recommendations: The results showed that the digital performance of charitable organizations varies based on the level of their investment in brand marketing. Successful organizations are distinguished by their mature institutional practices and effective digital investment. Accordingly, the study recommended the development of written brand marketing strategies, the allocation of dedicated budgets for branding activities, and the provision of specialized human resources.