This study investigates the impact of digital marketing on the performance of start-ups in Benue State, Nigeria. Using a mixed-methods approach that combines semi-structured interviews with surveys, the research explores how digital marketing strategies such as social media marketing, search engine optimization (SEO), and content personalization affect brand awareness, customer loyalty, and growth. The findings reveal that digital marketing significantly enhances start-up growth, brand awareness, and customer loyalty. Social media and content marketing are the most impactful strategies, with firms using multiple digital marketing tools reporting stronger revenue growth (15% vs. 7% for single-tool users). Despite challenges like limited budgets and SEO competition, start-ups that adopted digital marketing reported improved visibility, customer engagement, and competitiveness. The results show that 86% of start-ups use social media marketing, 78% reported increased brand awareness, and 65% reported improved customer loyalty, with average revenue growth ranging from 7% for those using 1 strategy to 18% for those using 4+ strategies. The study recommends prioritizing low-cost, high-impact digital marketing strategies and integrating data analytics to optimize campaigns. Government support for digital infrastructure and training is also suggested.