The concept of sufficiency has gained increased attention as companies seek sustainable pathways beyond efficiency and recycling within the Circular Economy (CE).This study explores the role of sufficiency practices in fostering sustainable competitiveness at the company level. Utilising the Grey Analytic Hierarchy Process (Grey-AHP), we assess and prioritise sufficiency practices that contribute to economic and market capability, resource capability, social ability and technological ability. A sample of 37 companies implementing CE principles was analysed to identify key sufficiency practices and their impact on competitiveness dimensions. The findings highlight that practices, such as reducing material use and extending product longevity offer significant competitive advantages. Furthermore, the application of multi-criteria decision-making enhances the decision-making process, offering companies a systematic approach to evaluate and prioritize sufficiency practices based on diverse sustainability dimensions.