This paper explores the crucial role of angel investors in the early-stage financing and development of startups. Angel investors, often individuals with significant entrepreneurial experience, provide not only capital but also strategic guidance, mentorship, and valuable networks to startups. Their contributions help bridge the gap between personal funding sources (friends and family) and institutional venture capital, particularly for innovative ventures with substantial growth potential. Despite the importance of business angels in the startup ecosystem, research on their impact has been limited compared to venture capital studies, with much of the existing literature focusing primarily on financial investments. This study seeks to address this gap by examining how business angels contribute beyond financial support, exploring the value-added services they provide, their influence on startup survival, and the role of their networks in facilitating future funding opportunities. The paper highlights the non-financial contributions of angels, such as mentorship and operational expertise, which significantly enhance the likelihood of startup success. Moreover, it evaluates the organizational role of angel networks in connecting entrepreneurs with investors and fostering ecosystem growth. Drawing from both primary (interviews) and secondary (literature, case studies, and articles) data, the study provides valuable insights into the functioning of angel investors and their broader impact on entrepreneurial ecosystems. The findings aim to inform entrepreneurs, investors, and policymakers, contributing to the understanding of informal financing mechanisms and offering practical recommendations for enhancing startup sustainability and fostering innovation.