Promoting entrepreneurship among the youth and women is an emerging global trend for inclusive sustainable development. This study aims to unlock the potential of social business investments in microenterprises for turning unemployment into entrepreneurship and scaling up business growth. According to Prof Yunus, "social business is selfless business to solve social problems" based on seven principles. The study has selected 264 enterprises of Nobin Udyokta (NU) meaning new entrepreneurs under Nobin Udyokta Project (NUP) of Grameen Telecom Trust (GTT). NUs and GTT have co-investments under equity participation for at least one or more than 1 year. NUs are basically emerging micro entrepreneurs, who are often disproportionately burdened with multi-dimensions of poverty and lack of working capital, which inhibits business growth. Findings of regression analysis show that social business fund can significantly influence the growth of NU enterprises and increased investment can also create more employments. Therefore, this study is having value to the promoter, advocates, investors in social enterprises, and policy makers seeking strategy for reducing poverty and unemployment through entrepreneurship for sustainable development leaving no one behind.