Sustainability indices evaluate companies' sustainability performance and environmental policies. They aim to inform investors about socially responsible investment opportunities. Major sustainability indices include the Dow Jones Sustainability Index, FTSE4Good, and MSCI Global Sustainability Index. Benchmarking compares company practices to industry best practices for continuous improvement. Sustainability benchmarking identifies environmental, social and economic indicators, gathers raw data, and analyzes trends to assess performance across the triple bottom line of people, planet and profit.