We examine the relative sustainability of the organizations named as industry leaders in the 2017 DJSI index using the economic, social and environmental sustainability dimensions and the overall score assigned to each. Our study seeks to use these scores to examine the relative efficiency of the organizations assigned as industry leaders in the DJSI. In particular, we seek to assess the extent to which their dimensional sustainability scores were instrumental in producing their overall scores as well to understand what improvements in dimensional scores would be necessary for improved outputs. We use data envelope (DEA) to examine our questions. Our research has implications for both academic research and practice. The main contribution to research is the proposed application of the DEA method to the sustainability area for benchmarking and improving organizations’ sustainability scores. Our findings have similar implications for organizations, especially for conglomerates with companies that operate in multiple industries.