This article is a case study of Costco USA. This research paper investigates observations made during visits to Costco USA, courses on the company life cycle in brief, and customer interaction techniques. The study takes a qualitative method to analyse several characteristics of the organization. Costco's unique membership strategy and its effect on consumer loyalty and satisfaction. The insights reveal transformational leadership strategies that enable the organization accelerate culture change and foster a collaborative work environment. It also emphasizes the value-driven price choices of products and the retail purchasing experiences, which are the primary factors for increased consumer loyalty. The studies also highlight the usefulness of leadership style and solely customer-centric methods in defining Costco's overall applications. The findings underline the vitality of effective leadership and customer-centric practices in defining the overall effectiveness of retail operations, with important implications for future study and business uses.