The global legal services industry has witnessed a significant shift in recent years, with a growing emphasis on sustainability and responsible business practices. As corporations, governments, and consumers strive to make a positive impact, the integration of Environment, Social, and Governance (ESG) principles into the legal sector has become a key trend. Through the adoption of advanced technologies and a focus on sustainability, the industry is not only enhancing efficiency but also contributing to the United Nations Sustainable Development Goals (UNSDG). In this article, we will explore the role of ESG in the legal services ecosystem, examine key trends, discuss the growth of the market, and highlight the initiatives taken by industry leaders to promote sustainability.