This analysis delves into the diverse landscape of Foreign Direct Investment (FDI) policies within developing nations and their profound implications for entrepreneurial ecosystems. Through comparative analysis, the study uncovers a range of strategies countries employ, from liberal to restrictive FDI approaches, which significantly impact interactions between foreign investors and local startups, ultimately shaping innovation, growth, and competitiveness in entrepreneurial ecosystems. In some developing nations, liberal FDI policies play a pivotal role, strategically designed to attract foreign capital, technology, and expertise. For instance, Singapore and Ireland have implemented proactive, incentive-driven measures, particularly in high-tech sectors, resulting in thriving entrepreneurial ecosystems integrated into global value chains. These policies foster collaborative environments, granting local startups improved access to capital, markets, and invaluable knowledge from foreign investors. Conversely, other nations adopt more restrictive FDI policies to safeguard strategic sectors and protect domestic enterprises from undue foreign influence. India and China exemplify this approach, erecting regulatory barriers in industries like telecommunications and banking to retain policy autonomy and nurture domestic capabilities. While preserving local interests, these policies inadvertently limit access to FDI benefits, including advanced technologies, skills, and global market connectivity. Governments often utilize incentive schemes such as tax breaks and subsidies to attract FDI, making their countries appealing to foreign investors and providing local startups with essential resources and mentorship, significantly contributing to their growth. However, ownership restrictions, particularly in strategically significant sectors, serve to protect domestic control but may discourage potential investors and hinder collaboration between startups and foreign entities. Striking a balance between preserving sovereignty ...