This report provides a detailed, fact-based comparison of the 20 most prominent ESG reporting and data management software vendors. Based on the proprietary Verdantix Green Quadrant methodology, the analysis encompasses two-hour live briefings, desktop research and vendor responses to a 115-point questionnaire covering 15 capability and 11 market momentum categories. Although ESG reporting and data management software has existed for over 15 years, Verdantix analysis finds that the level of customer demand and the number of vendor solutions have both grown substantially over the last three years. This is largely due to increased pressure from internal and external stakeholders, resulting in new use cases and functionality requirements. Among the software vendors featured in this Green Quadrant, 11 firms – Benchmark Gensuite, Cority, Diligent, IBM, Intelex, Nasdaq, Sphera, UL Solutions, VelocityEHS, Wolters Kluwer and Workiva – demonstrated the most advanced all-round ESG reporting and data management software capabilities.