The startup landscape is evolving with a growing emphasis on sustainability and social responsibility. This paper investigates how startups are integrating sustainability and social responsibility into their core business strategies and how these factors are influencing their success. By analyzing case studies of startups that have prioritized environmental and social impact, we explore the business advantages of adopting sustainable and socially responsible practices. Additionally, we address the challenges and opportunities faced by startups seeking to align profitability with positive contributions to society and the environment. This paper offers valuable insights into the changing dynamics of the startup ecosystem and the growing importance of ethical and sustainable entrepreneurship.