This report provides an in-depth analysis of the circular economy and its impact on six prominent companies: Burberry, Gap Inc., Adidas, Primark, Aditya Birla Group, and ASOS. The analysis begins by examining the resource-related challenges faced by each company, categorizing them into tiers based on their approach to sustainability. The report then explores three fundamental approaches—narrow, slow, and closed loops—that these organizations can implement to enhance their circular economy strategies. Furthermore, the report delves into the value dimensions of each company, addressing value proposition, creation and delivery, and capture. The study references key sustainability reports and academic research to support its findings, highlighting the importance of sustainable practices in the fashion and apparel industries. The report emphasizes the importance of sustainable sourcing, waste reduction, and efficient packaging for a circular economy. It concludes by summarizing the sustainability strategies of each company and their contributions to the circular economy.